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1 lt 1077 1077fa 60 a max supply current 40 v max offset voltage 350pa max offset current 0.5 v p-p 0.1hz to 10hz voltage noise 2.5pa p-p 0.1hz to 10hz current noise o.4 v/ c offset voltage drift 250khz gain-bandwidth product 0.12v/ s slew rate single supply operation input voltage range includes groundoutput swings to ground while sinking current no pull-down resistors are needed output sources and sinks 5ma load current replaces op-07, op-77, ad707, lt1001, lt1o12at 10 to 60 times lower power battery or solar powered systems 4ma to 2oma current loops two terminal current source megaohm source resistance difference amplifier micropower, single supply, precision op amp self buffered micropower reference distribution of input offset voltage , ltc and lt are registered trademarks of linear technology corporation. features descriptio u applicatio s u typical applicatio u 750k 3.6v to 9v 3 2 0.1 f lt10341.2v output1.230v 1.2% max supply current = 60 a max sources up to 10maload regulation = 30 v/ma temperature drift = 12ppm/ c 74 6 + lt1077 lt1077 ?ta01 input offset voltage ( v) ?0 percent of units 20 25 30 20 lt1077 ?ta02 1510 ?0 ?0 ?0 0 40 10 30 5 0 35 v s = 5v, 0v t a = 25 c 1072 unitstested in h, j8, n8 packages the lt ? 1077 is a micropower precision operational amplifier optimized for single supply operation at 5v. inaddition, 15v specifications are provided. micropower performance of competing devices isachieved at the expense of seriously degrading precision, noise, speed, and output drive specifications. the lt1077 reduces supply current without sacrificing other parameters. the offset voltage achieved is the lowest of any micropower op amp. offset current, voltage and current noise, slew rate and gain-bandwidth product are all two to ten times better than on previous micropower op amps. the 1/f corner of the voltage noise spectrum is at 0.7hz. this results in low frequency (0.1hz to 10hz) noise performance which can only be found on devices with an order of magnitude higher supply current. the lt1077 is completely plug-in compatible (including nulling) with all industry standard precision op amps. thus, it can replace these precision op amps in many applications without sacrificing performance, yet with significant power savings. the lt1077 can be operated from one lithium cell or two ni-cad batteries. the input range goes below ground. the all-npn output stage swings to ground while sinking currentno pull-down resistors are needed. for dual and quad op amps with similar specifications please see the lt1078/lt1079 datasheet. downloaded from: http:///
2 lt 1077 1077fa lt1077amhlt1077mh lt1077ach lt1077ch lt1077s8lt1077is8 lt1077ain8 lt1077in8 lt1077acn8 lt1077cn8 order part number order part number 10771077i s8 part marking top view h package 8-lead to-5 metal can t jmax = 150 c, ja = 150 c/w, jc = 45 c/w v + v os trim v os trim Cin out nc +in v C 8 7 5 6 3 2 1 4 a + C + C b order part number lt1077amj8lt1077mj8 lt1077acj8 lt1077cj8 top view j8 package 8-lead cerdip t jmax = 150 c, ja = 100 c/w 12 3 4 87 6 5 v os trim Cin +in v C v os trim v + outnc lt1077 ? poi01 top view n8 package 8-lead pdip s8 package 8-lead plastic so 12 3 4 87 6 5 v os trim v + outnc v os trim Cin+in v C t jmax = 100 c, ja = 130 c/w t jmax = 150 c, ja = 190 c/w lt1077am/ai/ac lt1077m/i/c/s8 symbol parameter conditions min typ max min typ max units v os input offset voltage 9 40 10 60 v lt1077s8 12 150 v ? v os long term input offset 0.4 0.4 v/mo ? time voltage stability i os input offset current 0.06 0.35 0.06 0.45 na i b input bias current 7 9 7 11 na e n input noise voltage 0.1hz to 10hz (note3) 0.5 1.1 0.5 v p-p input noise voltage density f o = 10hz (note 3) 28 43 28 nv/ hz f o = 1000hz (note3) 27 35 27 nv/ hz i n input noise current 0.1hz to 10hz (note3) 2.5 4.5 2.5 pa p-p supply voltage ...................................................... 22v differential input voltage ....................................... 30v input voltage ............... equal to positive supply voltage input voltage ............ 5v below negative supply voltage output short-circuit duration .......................... indefinite consult ltc marketing for parts specified with wider operating temperature ranges. v s = 5v, 0v, v cm = 0.1v, v o = 1.4v, t a = 25 c unless noted. absolute axi u rati gs w ww u package/order i for atio uu w electrical characteristics operating temperature range lt1077am/lt1077m (obsolete) .... C 55 c to 125 c lt1077ai/lt1077i .............................. C 40 c to 85 c lt1077ac/lt1077c/lt1077s8 ............... 0 c to 70 c storage temperature range ................. C 65 c to 150 c lead temperature (soldering, 10 sec).................. 300 c (note 1) obsolete package consider the n8 or s8 package for alternate source downloaded from: http:///
3 lt 1077 1077fa lt1077am/ai lt1077m/i symbol parameter conditions min typ max min typ max units v os input offset voltage 50 200 60 260 v ? v os / ? t input offset voltage drift lt1077is8 (note 6) 1 2.5 v/ c i os input offset current 0.08 0.60 0.08 0.80 na i b input bias current 81 1 8 1 3 n a cmrr common mode rejection ratio v cm = 0.05v to 3.2v 92 104 88 103 db psrr power supply rejection ratio v s = 3.1v to 12v 98 114 94 113 db a vol large-signal voltage gain v o = 0.05v to 3.5v, r l = 50k 120 600 100 600 v/mv maximum output voltage output low, no load 4.5 8 4.5 8 mv swing output low, i sink = 100 a 120 170 120 170 mv output high, no load 3.9 4.2 3.9 4.2 v output high, 2k to gnd 3 3.7 3 3.7 v i s supply current 54 80 54 90 a lt1077am/ai/ac lt1077m/i/c/s8 symbol parameter conditions min typ max min typ max units input noise current density f o = 10hz (note 3) 0.065 0.11 0.065 pa/ hz f o = 1000hz 0.02 0.02 pa/ hz input resistance (note 4) differential mode 350 700 270 700 m ? common mode 6 6 g ? input voltage range 3.5 3.8 3.5 3.8 v 0C 0 . 3 0C 0.3 v cmrr common mode rejection ratio v cm = 0v to 3.5v 97 106 94 105 db psrr power supply rejection ratio v s = 2.3v to 12v 102 118 100 117 db a vol large-signal voltage gain v o = 0.03v to 4v, no load 300 1000 240 1000 v/mv v o = 0.03v to 3.5v, r l = 50k 250 1000 200 1000 v/mv maximum output voltage output low, no load 3.5 6 3.5 6 mv swing output low, 2k to gnd 0.7 1.1 0.7 1.1 mv output low, l sink = 100 a9 0 130 90 130 mv output high, no load 4.2 4.4 4.2 4.4 v output high, 2k to gnd 3.5 3.9 3.5 3.9 v sr slew rate (note 2) 0.05 0.08 0.05 0.08 v/ s gbw gain bandwidth product f o 20khz 230 230 khz i s supply current 48 60 48 68 a offset adjustment range r pot = 10k, wiper to v + 500 900 500 900 v minimum supply voltage (note 5) 2.2 2.3 2.2 2.3 v v s = 5v, 0v, v cm = 0.1v, v o = 1.4v, t a = 25 c unless noted. electrical characteristics the denotes the specifications which apply over the temperature range of 55 c t a 125 c for am/m grades, ?0 c t a 85 c for ai/i grades. v s = 5v, 0v, v cm = 0.1v, v o = 1.4v unless otherwise noted. downloaded from: http:///
4 lt 1077 1077fa lt1077ac lt1077c/s8 symbol parameter conditions min typ max min typ max units v os input offset voltage 30 110 35 150 v lt1077s8 40 280 v ? v os / ? t input offset voltage drift (note 6) 0.4 1.6 0.5 2.0 v/ c lt1077s8 (note 6) 0.7 3.0 v/ c i os input offset current 0.07 0.45 0.07 0.60 na i b input bias current 71 0 7 1 2 n a cmrr common mode rejection ratio v cm = 0v to 3.4v 94 105 90 104 db psrr power supply rejection ratio v s = 2.6v to 12v 100 116 97 115 db a vol large-signal voltage gain v o = 0.05v to 3.5v, r l = 50k 180 800 150 800 v/mv maximum output voltage swing output low, no load 4.0 7 4.0 7 mv output low, i sink = 100 a 100 150 100 150 mv output high, no load 4.1 4.3 4.1 4.3 v output high, 2k to gnd 3.3 3.8 3.3 3.8 v i s supply current 52 70 52 80 a the denotes the specifications which apply over the temperature range of 0 c t a 70 c otherwise, specifications are at t a = 25 c. v s = 5v, 0v, v cm = 0.1v, v o = 1.4v unless noted. electrical characteristics lt1077am/ai/ac lt1077m/i/c/s8 symbol parameter conditions min typ max min typ max units v os input offset voltage 20 150 25 200 v lt1077s8 30 300 v i os input offset current 0.06 0.35 0.06 0.45 na i b input bias current 7 9 7 11 na input voltage range 13.5 13.8 13.5 13.8 v C 15.0 C 15.3 C 15.0 C 15.3 v cmrr common mode rejection ratio v cm = 13.5v to C15v 100 109 97 108 db psrr power supply rejection ratio v s = 5v, 0v to 18v 106 122 103 120 db a vol large-signal voltage gain v o = 10v, r l = 50k 1000 8000 800 8000 v/mv v o = 10v, r l = 2k 400 1500 300 1500 v/mv v out maximum output voltage swing r l = 50k 13.0 14.0 13.0 14.0 v r l = 2k 11.0 13.2 11.0 13.2 v sr slew rate 0.07 0.12 0.07 0.12 v/ s i s supply current 56 75 56 85 a v s = 15v, t a = 25 c unless noted. downloaded from: http:///
5 lt 1077 1077fa lt1077am/ai lt1077m/i symbol parameter conditions min typ max min typ max units v os input offset voltage 60 330 75 450 v ? v os / ? t input offset voltage drift lt1077is8 (note 6) 1.1 3 v/ c i os input offset current 0.08 0.60 0.08 0.80 na i b input bias current 81 1 8 1 3 n a a vol large-signal voltage gain v o = 10v, r l = 5k 300 1000 250 1000 v/mv cmrr common mode rejection ratio v cm = 13v, C14.9v 94 107 90 106 db psrr power supply rejection ratio v s = 5v, 0v to 18v 100 118 97 116 db maximum output voltage swing r l = 5k 11 13.5 11 13.5 v i s supply current 60 95 60 105 a the denotes the specifications which apply over the temperature range of ?5 c t a 125 c for am/m grades, 40 c t a 85 c for ai/i grades. v s = 15v unless otherwise noted. electrical characteristics lt1077ac lt1077c/s8 symbol parameter conditions min typ max min typ max units v os input offset voltage 40 230 50 320 v lt1077s8 65 450 v ? v os / ? t input offset voltage drift (note 6) 0.4 1.8 0.5 2.5 v/ c lt1077s8 (note 6) 0.8 3.5 v/ c i os input offset current 0.07 0.45 0.07 0.60 na i b input bias current 71 0 7 1 2 n a a vol large-signal voltage gain v o = 10v, r l = 5k 500 2000 400 2000 v/mv cmrr common mode rejection ratio v cm = 13v, C15v 97 108 94 107 db psrr power supply rejection ratio v s = 5v, 0v to 18v 103 120 100 118 db maximum output voltage swing r l = 5k 11 13.6 11 13.6 v i s supply current 59 85 59 95 a the denotes the specifications which apply over the temperature range of 0 c t a 70 c. v s = 15v unless otherwise noted. note 1: absolute maximum ratings are those values beyond which the life of a device may be impared.note 2: slew rate at 5v, 0v is guaranteed by inference from the slew rate measurement at 15v. note 3: this parameter is tested on a sample basis only. all noise parameters are tested with v s = 2.5v, v o = 0v. note 4: this parameter is guaranteed by design and is not tested. note 5: power supply rejection ratio is measured at the minimum supply voltage. the op amps actually work at 1.8v supply but with a typical offset skew of C 300 v. note 6: this parameter is not 100% tested. downloaded from: http:///
6 lt 1077 1077fa 0.1hz to 10hz noise supply current vs temperature 0.01hz to 10hz noise input bias currents vscommon mode voltage noise spectrum 10hz voltage noise distribution distribution of offset voltage driftwith temperature (in all packages) input bias and offset currentsvs temperature typical perfor a ce characteristics uw distribution of input offset voltagein small outline (s8) package temperature (?c) C50 supply current ( a) 60 25 75 lt1077 ? tpc01 50 C25 0 50 100 125 40 v s = 15v v s = 5v, 0v temperature ( c) C50 C8 bias current (na) offset current (pa) C6 50 0 50 75 lt1077 ? tpc02 C7 75 100 C25 25 100 125 v s = 5v, 0v to 15v i os i b common mode voltage (v) C1 C13 input bias current (na) C11 C9 C7 C5 C3 C1 0123 lt1077 ? tpc03 4 t a = 55 c t a = 125 c v s = 5v, 0v t a = 25 c time (seconds) 0 noise voltage (0.4 v/div) 8 lt1077 ? tpc04 2 4 6 10 v s = 2.5v t a = 2.5 c time (seconds) 0 noise voltage (0.4 v/div) 80 lt1077 ? tpc05 0.4 v 20 40 60 100 v s = 2.5v t a = 2.5 c frequency (hz) 0.1 10 voltage noise density (nv/ hz) currnet noise density (fa/ hz) 100 30 300 1000 10 1000 1 100 lt1077 ? tpc06 v s = 2.5v t a = 25 c (at v s = 15v voltage noise is 4% less current noise is unchanged currentnoise voltagenoise 1/f corner0.7hz voltage noise density (nv/ hz) 25 3530 25 20 15 10 50 lt1077 ? tpc07 30 35 40 percent of units v s = 2.5v t a = 2.5 c offset voltage drift with temperature (nv/ c) 0 percent of units 20 C2.0 0 1.0 lt1077 ? tpc08 10 30 2.0 C1.0 v s = 5v, 0v v cm = 0.1v 400 units tested(100 in each package) input offset voltage ( v) C150 0 percent of units 10 30 40 50 70 C120 0 60 lt1077 ? tpc09 20 60 C30 120 150 C90 C60 30 90 456 unitstested v s = 5v, 0v t a = 25 c downloaded from: http:///
7 lt 1077 1077fa typical perfor a ce characteristics uw voltage gain vs frequency large-signal transientresponse v s = 5v, 0v capacitive load handling large-signal transientresponse v s = 15v gain, phase vs frequency slew rate, gain bandwidthproduct and phase margin vs temperature small-signal transient responsev s = 2.5v small-signal transient responsev s = 15v small-signal transient responsev s = 5v, 0v frequency (hz) 0.01 voltage gain (db) 60 100 1m lt1077 ? tpc10 20 C20 1 100 10k 0.1 10 1k 100k 140 40 80 0 120 t a = 25 c v s = 15v v s = 5v, 0v frequency (hz) 10k 30k C10 voltage gain (db) phase shift (degrees) 0 10 30 100120 140 160 180 200 100k 300k 1m lt1077 ? tpc11 20 phase margin 66 phase margin 54 15v 15v gain 5v, 0v 5v, 0v phase t a = 25 c c l = 20pf capacitive load (pf) 10 0 overshoot (%) 80 100 120 100 1000 10,000 lt1077 ? tpc12 6040 20 v s = 5v, 0v t a = 25 c a v = 1 a v = 10 a v = 5 temperature ( c) C50 180 phase margin (degrees) 200 240 260 0.140.08 0 50 75 lt1077 ? tpc13 220 0.10 0.120.06 70 8060 50 40 C25 25 100 125 slew 5v, 0v m 15v gbw 5v, 0v gbw 15v m 5v, 0v slew 15v f o = 20khz product (khz) slew rate (v/ s) gain bandwidth 50 s/div 1v/div 0v 100 s/div 5v/div 0v 20mv/div 10 s/div 20mv/div 10 s/div 20mv/div a v = 1 c l = 15pf input 50mv to 150mv a v = 1 c l = 15pf a v = 1 no loadinput pulse 0v to 3.8v a v = 1 no load 0.1v 0v 10 s/div a v = 1 c l = 15pf 0v downloaded from: http:///
8 lt 1077 1077fa typical perfor a ce characteristics uw minimum supply voltage output voltage swing vsload current voltage gain vs load resistanceshort-circuit current vs time warm-up drift output saturation vs temperaturevs sink current undistorted output swingvs frequency closed loop outputimpedance common mode range vstemperature positive supply voltage (v) 0 input offset voltage ( v) ?00 0 100 lt1077 ?tpc19 ?00 ?00 1 23 ?00 ?00 v = 0v 0.1 v cm 0.4v 70 c 25 c 0 c ?5 c 125 c nonfunctional time after power on (minutes) 0 change in offset voltage ( v) 0.4 lt1077 ? tpc20 0.2 0 12 0.6 0.8 3 v s = 15v t a = 25 c warm up driftat v s = 5v, 0v is immeasurably low load resistance to ground ( ? ) 100 1k 100k 100k voltage gain (v/v) 1m 10m 10k 1m lt1077 ? tpc21 v s = 15v 1. 25 c 2. C55 c 3. 125 c 1 2 3 4 5 6 v s = 5v, 0v 4. C55 c 5. 25 c 6. 125 c temperature ( c) ?0 ?5 saturation voltage (mv) 10 100 1000 0255075 100 125 lt1077 ?tpc22 0 i sink = 1ma i sink = 100 a i sink = 10 a i sink = 1 a no load r l = 5k to ground i sink = 2ma v s = 5v, 0v sourcing or sinking load current (ma) 0.01 v C output voltage swing (v) v + C 2 v + C 1 v + 0.1 1 10 lt1077 ? tpc23 v C + 2 v C + 1 C55 c C55 c 25 c 125 c 125 c 25 c time from output short to ground (minutes) 0 sinking sourcing short-circuit current (ma) ?0 0 10 lt1077 ?tpc24 ?0 ?0 ?0 12 20 30 40 3 t a = 25 c, v s = 5v, 0v t a = 125 c, v s = 5v, 0v t a = 25 c, v s = 15v t a = 25 c, v s = 15v t a = 125 c, v s = 15v t a = 125 c, v s = 15v temperature ( c) ?0 0 50 75 lt1077 ?tpc25 ?5 25 100 125 v + = 2.5v to 18v v = 0v to ?8v v ?1 common mode range (v) v + ?2 v + ?1 v + v + 1 v frequency (hz) 100 00 1 2 3 4 5 peak-to-peak output swing, v s = 15v (v) peak-to-peak output siwng, v s = 5v, 0v (v) 20 30 1k 10k 100k lt1077 ?tpc26 10 t a = 25 c load r l , to ground v s = 5v, 0v, r l 100k v s = 15v r l = 30k v s = 15v r l 100k v s = 5v, 0v r l 1k frequency (hz) output impedance ( ? ) 100 1k lt1077 ? tpc27 10 1 0.1 10 100 10k 100k 1k a v = 10 a v = 1 a v = 100 downloaded from: http:///
9 lt 1077 1077fa the lt1077 is fully specified with v + = 5v, v C = 0v, v cm = 0.1v. this set of operating conditions appears to be the most representative for battery powered micropowercircuits. offset voltage is internally trimmed to a minimum value at these supply voltages. when 9v or 3v batteries, or 2.5v dual supplies are used, bias and offset current changes will be minimal. offset voltage changes will bejust a few microvolts as given by the psrr and cmrr specifications. for example, if psrr = 114db ( = 2 v/v), at 9v the offset voltage change will be 8 v. similarly, v s 2.5v, v cm = 0 is equivalent to a common mode voltage change of 2.4v or a v os change of 7 v if cmrr = 110db (3 v/v). a full set of specifications is also provided at 15v supply voltages for comparison with other devices and forcompleteness. the lt1077 is pin compatible to, and directly replaces, such precision op amps as the op-07, op-77, ad7o7 and lt1001 with 30 to 60 times savings in supply current. the lt1077 is also a direct plug-in replacement for lt1012 and op-97 devices with 10 times lower dissipation. compatibility includes externally nulling the offset voltage, as all of the devices above are trimmed with a potentiometer between pins 1 and 8 and the wiper tied to v + . the lt1077 replaces and upgrades such micropower opamps as the op-20, lm4250, and op-90, provided that the external nulling circuitry (and set resistor in the case of the lm4250) are removed. since the offset voltage of the lt1077 is extremely low, nulling will be unnecessary in most applications. single supply operation the lt1077 is fully specified for single supply operation, (i.e., when the negative supply is 0v). input common mode range goes below ground and the output swings within a few millivolts of ground while sinking current. all competing micropower op amps either cannot swing to within 600mv of ground (op-20, op-220, op-420) or need a pull-down resistor connected to the output to swing to ground (op-90, op-290, op-490, ha5141/42/ 44). this difference is critical because in many applica- tions these competing devices cannot be operated as micropower op amps and swing to ground simultaneously. consider the difference amplifiers shown in typical applications as an example. when the common mode signal is high and the output low, the amplifier has to sink current. in the gain of 10 circuit, the competing devices require a 30k pull-down resistor at the output to handle the specified signals. (the lt1077 does not need pull-down typical perfor a ce characteristics uw common mode rejection ratiovs frequency power supply rejection ratiovs frequency frequency (hz) 10 0 common mode rejection ratio (db) 20 40 60 80 100 120 100 1k 10k 100k lt1077 ?tpc28 1m t a = 25 c v s = 15v v s = 5v, 0v frequency (hz) 0.1 power supply rejection ratio (db) 80 100 120 100 10k lt1077 ? tpc29 60 40 110 1k 100k 20 0 positivesupply negativesupply v s = 2.5v + 1v p-p sine wave t a = 25 c applicatio s i for atio wu uu downloaded from: http:///
10 lt 1077 1077fa applicatio s i for atio wu uu resistors.) when the output is high the pull-down resistordraws 80 a which dominates the micropower current budget. this situation is much worse in the gain of one circuit with v C =0v. at 100v common mode, the output has to sink 2 a. at a minimum output voltage of 20mv competing devices require a 10k pull-down resistor. asthe output now swings to 10v, this resistor draws 1ma of current. since the output of the lt1077 cannot go exactly to ground, but can only approach ground to within a few millivolts, care should be exercised to ensure that the output is not saturated. for example, a 1mv input signal will cause the amplifier to set up in its linear region in the gain 100 configuration shown below; however, it is not enough to make the amplifier function properly in the voltage follower mode. voltage follower with input exceeding the negative common mode range (v s = 5v, 0v) single supply operation can also create difficulties at theinput. the driving signal can fall below 0vinadvertently or on a transient basis. if the input is more than a few hundred millivolts below ground, two distinct problems can occur on previous single supply designs, such as the lm124, lm158, op-20, op-21, op-220, op-221, op-420 (a and b), op-90/290/490 (b only): a) when the input is more than a diode drop below ground, unlimited current will flow from the substrate (v C terminal) to the input (this can destroy the unit). on the lt1077, resistors in series with the input protect thedevice even when the input is 5v below ground. b) when the input is more than 400mv below ground (at 25 c), the input stage saturates and phase reversal occurs at the output (this can cause lock-up in servosystems). due to a unique phase reversal protection circuitry, the lt1077s output does not reverse, as illustrated below, even when the input is at C 1.0v. 100mv 1mv 99r 5v r + C outputsaturated 3.5mv 1mv 5v + C lt1077 ? ai01 gain 100 amplifier voltage follower 1ms/div 2v 1ms/div 2v 2v 4v 4v 4v 0 0 0 lt1077no phase reversal op-90exhibits output phase reversal 1ms/div 6v p-p input C1.0 to 5.0v downloaded from: http:///
11 lt 1077 1077fa comparator applicationsthe single supply operation of the lt1077 and its ability to swing close to ground while sinking current, comparator rise response timeto 10mv, 5mv, 2mv overdrive comparator fall response timeto 10mv, 5mv, 2mv overdrive typical applicatio s u megaohm input impedance gain of 10 difference amplifier ou tp ut 0.005 t o 2.4 v bandwidth = ou tp u t o ff s et = output noise = supply current = 2 0 kh z 0 .7m v 80 vpp (0.1hz to 10hz) 260 v rms over full bandwidth 45 a the usefulness of difference amplifiers is limited by the factthat the input resistance is equal to the source resistance. the pico-ampere offset current and low current noise of the lt1077 allows the use of 1m source resistors without degradation in performance. in addition, with megaohm resistors micropower operation can be maintained 6 7 4 2 3 3v 1 0m 1 0m 1m 1m inp ut C + lt1077 ? ta03 lends itself to use as a precision comparator withttl compatible output. 200 s/div output (v) 00 2 4 C100 input (mv) 200 s/div output (v) 00 2 4 100 input (mv) v s = 5v, 0v v s = 5v, 0v applicatio s i for atio wu uu downloaded from: http:///
12 lt 1077 1077fa 250v common mode range difference amplifier (a v = 1) two terminal current source half-wave rectifier typical applicatio s u common mode rejection ratio = with optional trim = output offset (trimmable to zero) = output offset drift = input resistance = common mode range = == 74db (resistor limited)108db 500 v 25 v/ c 1m 250v, v + = 6.2v to 18v, v C = C 4.7v to C18v 100v, v + + 3.2v, v C C1.8v 100v, C13v, v + 3.2v, v C = 0v co mm on m o d e inp ut 2 50v + in C in r 3 1m r1 1m r 5 9 7 5 k r2 2 0k out 50 k o pti o na l c mr r trim r1 t o r6: vi s hay 444 a ccu tra c t thin fil m sip network :vi s hay 444 pin n u mber s vishay intertechnology , inc . 63 lincoln highwaymalvern, pa 19355 r 6 2 5k r4 1 9 . 608k 3v t o 18 v o v t o C 18 v 2 7 4 6 3 x 5 6 7 4 1 2 3 lt1077 ? ta04 + C lt1077 4 7 6 3.6v to 40v minimum current = 50 a (r1 ) maximum current = 10.3ma (r1 = 120 ? ) lt10341.2v 750k r l i s i o i o = + i s v r1 r 1 r1 v r1 +C 23 =+ 50 a 1.230v r 1 lt1077 ? ta05 + C output 1.8v 1.8v C1.8v 0 v 0min = 6mv no distortion to 100hz lt1077 3v 2m 1m 1m input lt1077 ? ta06 downloaded from: http:///
13 lt 1077 1077fa si plified sche atic ww 700k 700k 9.1k 5.35k q43 q51 q50 q48 q44 q42 q55 q49 q45 v v + v + v + v + v j1 q52 q46 q53 2 1 1 12.5k 11.5k 3.6k 30 ? out 150k 2.9k 5.6k 2.2k 700 ? null null 700 ? 9k 9k 1.3k q41 q40 q54 q47 q32 q37 q30 1 3 q15 q14 q6 q16 q5 5k q3 q4 q24 8.6k 600 ? ?n 3k q12 q1q21 q2q22 4 1 q1 q29 c1 50pf c5 2.5pf c4 4pf c340pf q25 q26 q35 q33 q31 q19 q23 q36 c2 175pf q18 q27q28 q39 q8 6.2k 10k 1.35k 30 ? 6.2k q7 600 ? +in q9 q17 q10 q38 q34 q20 lt1077 ?s01 downloaded from: http:///
14 lt 1077 1077fa u package descriptio h package 8-lead to-5 metal can (.200 inch pcd) (reference ltc dwg # 05-08-1320) obsolete packages j8 package 8-lead cerdip (narrow .300 inch, hermetic) (reference ltc dwg # 05-08-1110) j8 0801 .014 C .026 (0.360 C 0.660) .200 (5.080) max .015 C .060 (0.381 C 1.524) .125 3.175 min .100 (2.54) bsc .300 bsc (7.62 bsc) .008 C .018 (0.203 C 0.457) 0 C 15 .005 (0.127) min .405 (10.287) max .220 C .310 (5.588 C 7.874) 12 3 4 87 65 .025 (0.635) rad typ .045 C .068 (1.143 C 1.650) full lead option .023 C .045 (0.584 C 1.143) half lead option corner leads option (4 plcs) .045 C .065 (1.143 C 1.651) note: lead dimensions apply to solder dip/plate or tin plate leads .050 (1.270) max .016 C .021** (0.406 C 0.533) .010 C .045* (0.254 C 1.143) seating plane .040 (1.016) max .165 C .185 (4.191 C 4.699) gaugeplane referenceplane .500 C .750 (12.700 C 19.050) .305 C .335 (7.747 C 8.509) .335 C .370 (8.509 C 9.398) dia .200 (5.080) typ .027 C .045 (0.686 C 1.143) .028 C .034 (0.711 C 0.864) .110 C .160 (2.794 C 4.064) insulating standoff 45 typ h8(to-5) 0.200 pcd 0801 lead diameter is uncontrolled between the reference plane and the seating plane for solder dip lead finish, lead diameter is .016 C .024 (0.406 C 0.610) * ** pin 1 downloaded from: http:///
15 lt 1077 1077fa information furnished by linear technology corporation is believed to be accurate and reliable. however, no responsibility is assumed for its use. linear technology corporation makes no represen-tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. u package descriptio n8 0502 .100 (2.54) bsc .065 (1.651) typ .045 C .065 (1.143 C 1.651) .130 .005 (3.302 0.127) .020 (0.508) min .018 .003 (0.457 0.076) .125 (3.175) min 12 3 4 87 6 5 .255 .015* (6.477 0.381) .400* (10.160) max .009 C .015 (0.229 C 0.381) .300 C .325 (7.620 C 8.255) .325 +.035C.015 +0.889 C0.381 8.255 () note:1. dimensions are inches millimeters *these dimensions do not include mold flash or protrusions. mold flash or protrusions shall not exceed .010 inch (0.254mm) n8 package 8-lead pdip (narrow .300 inch) (reference ltc dwg # 05-08-1510) downloaded from: http:///
16 lt 1077 1077fa linear technology corporation 1 630 mccarthy blvd., milpitas, ca 95035-7417 (408) 432-1900 fax: (408) 434-0507 www.linear.com lw/tp 1002 1k rev a ? printed in usa ? l inear technology corporation 1989 u package descriptio .016 C .050 (0.406 C 1.270) .010 C .020 (0.254 C 0.508) 45 0 C 8 typ .008 C .010 (0.203 C 0.254) so8 0502 .053 C .069 (1.346 C 1.752) .014 C .019 (0.355 C 0.483) typ .004 C .010 (0.101 C 0.254) .050 (1.270) bsc 1 n 2 3 4 n/2 .150 C .157 (3.810 C 3.988) note 3 8 7 6 5 .189 C .197 (4.801 C 5.004) note 3 .228 C .244 (5.791 C 6.197) .245 min n 123 n/2 .160 .005 recommended solder pad layout .045 .005 .050 bsc .030 .005 typ inches (millimeters) note:1. dimensions in 2. drawing not to scale3. these dimensions do not include mold flash or protrusions. mold flash or protrusions shall not exceed .006" (0.15mm) s8 package 8-lead plastic small outline (narrow .150 inch) (reference ltc dwg # 05-08-1610) downloaded from: http:///

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