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_______________________________________________________________ maxim integrated products 1 for pricing, delivery, and ordering information, please contact maxim direct at 1-888-629-4642, or visit maxims website at www.maxim-ic.com. 3v/5v low-power, low-noise, cmos, rail-to-rail i/o op amps MAX9636/max9637/max9638 19-5228; rev 0; 6/10 general description the MAX9636/max9637/max9638 are single-supply, cmos input op amps featuring wide bandwidth at low quiescent current, making them suitable for a broad range of battery-powered applications such as portable medical instruments, portable media players, and smoke detectors. a combination of extremely low input bias currents, low input current noise and low input voltage noise allows interface to high-impedance sources such as photodiode and piezoelectric sensors. these devices are also ideal for general-purpose signal processing functions such as filtering and amplification in a broad range of portable, battery-powered applications. the ics feature a maximized ratio of gain bandwidth (gbw) to supply current. the devices operate from a single 2.1v to 5.5v supply at a typical quiescent supply current of 36a. for additional power conservation, the MAX9636 and max9638 offer a low-power shutdown mode that reduces supply current to 1a and places the amplifiers outputs into a high-impedance state. the ics are specified over the automotive operating tem - perature range (-40c to +125c). the single is offered in a space-saving, 6-pin sc70 package, while the dual is offered in tiny, 8-pin sc70 and 10-pin utqfn packages. applications portable medical instruments piezoelectric transducer amplifiers smoke detectors battery-powered devices general-purpose signal conditioning notebooks portable media players features s low input voltage-noise density: 38nv/ hz s low input current-noise density: 50fa/ hz s ultra-low 0.1pa bias current s low 36a quiescent current s 1a quiescent current in shutdown s wide 1.5mhz bandwidth s single-supply operation v dd = 2.1v to 5.5v s available in tiny 6-pin sc70, 8-pin sc70, and 10-pin utqfn packages s -40c to +125c operating temperature range ordering information + denotes a lead(pb)-free/rohs-compliant package. t = tape and reel. * future productcontact factory for availability. part temp range pin-package MAX9636 axt+ -40 n c to +125 n c 6 sc70 max9637 axa+* -40 n c to +125 n c 8 sc70 max9638 avb+* -40 n c to +125 n c 10 utqfn
3v/5v low-power, low-noise, cmos, rail-to-rail i/o op amps MAX9636/max9637/max9638 2 stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. these are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. v dd , shdn to v ss .................................................. -0.3v to +6v in+, in-, out .................................... gnd - 0.3v to v dd + 0.3v continuous input current (any pins) ............................... q 20ma output short circuit to v dd or v ss duration .......................... 5s thermal limits (note 1) multiple layer pcb continuous power dissipation (t a = +70 n c) 6-pin sc70 (derate 3.1mw/c above +70 n c) ............ 245mw b ja ....................................................................... 326.5c/w b jc ......................................................................... 115c/w 8-pin sc70 (derate 3.1mw/ n c above +70 n c) ............. 245mw b ja ......................................................................... 326c/w b jc ......................................................................... 115 n c/w 10-pin utqfn (derate 7mw/ n c above +70 n c) ........ 558.7mw b ja ...................................................................... 143.2 n c/w b jc ......................................................................... 20.1 n c/w operating temperature range ........................ -40 n c to +125 n c junction temperature .................................................... +150 n c lead temperature (soldering 10s) ................................. +300 n c soldering temperature (reflow) ...................................... +260 n c electrical characteristics (v dd = 3.3v, v ss = 0v, v in+ = v in- = v cm = v dd /2, r l = 10k i to v dd /2, shdn = v dd , t a = -40 n c to +125 n c. typical values are at t a = +25 n c, unless otherwise noted.) (note 2) absolute maximum ratings note 1: package thermal resistances were obtained using the method described in jedec specification jesd51-7, using a four- layer board. for detailed information on package thermal considerations , refer to www.maxim-ic.com/thermal-tutorial . parameter symbol conditions min typ max units dc characteristics input voltage range v in + , v in - guaranteed by cmrr v ss - 0.1 v dd + 0.1 v input offset voltage v os t a = +25 n c 0.01 2.2 mv t a = -40 n c to +125 n c 3.5 input offset voltage drift tcv os (note 3) 7 f v/ n c input bias current (note 3) i b t a = +25 n c 0.1 0.8 pa t a = -40 n c to +85 n c 50 t a = -40 n c to +125 n c 800 common-mode rejection ratio cmrr v ss < v cm < (v dd - 1.4v) t a = +25 n c 72 86 db t a = -40 n c to +125 n c 68 (v ss - 0.1v) < v cm < (v dd + 0.1v) 58 77 open-loop gain a ol v out = 0.25v from rails 104 124 db v out = 0.4v from rails, r l = 600 i 100 120 output short-circuit current i sc short to v dd 10 ma short to v ss 40 output voltage low vol v out r l = 10k i 0.014 0.03 v r l = 600 i 0.044 0.08 output voltage high v oh v dd - v out r l = 10k i 0.019 0.04 v r l = 600 i 0.057 0.1 output leakage in shutdown (MAX9636, max9638 only) shdn = v ss , v out = 0v to v dd 0.01 1 f a
3v/5v low-power, low-noise, cmos, rail-to-rail i/o op amps MAX9636/max9637/max9638 3 electrical characteristics (continued) (v dd = 3.3v, v ss = 0v, v in+ = v in- = v cm = v dd /2, r l = 10k i to v dd /2, shdn = v dd , t a = -40 n c to +125 n c. typical values are at t a = +25 n c, unless otherwise noted.) (note 2) note 2: all devices are 100% production tested at t a = +25 n c. temperature limits are guaranteed by design. note 3: parameter is guaranteed by design. parameter symbol conditions min typ max units ac characteristics input voltage noise density e n f = 1khz 38 nv/ hz input voltage noise 0.1hz f 10hz 5 f v p-p input current noise density i n f = 1khz 50 fa/ hz input capacitance c in 2 pf gain bandwidth gbw 1.5 mhz slew rate sr 0.9 v/ f s capacitive loading c load no sustained oscillations 300 pf distortion thd f = 10khz, v o = 2v p-p , a v = 1v/v -68 db f = 10khz, v o = 2v p-p , a v = 1v/v, v dd = 5.5v -74 settling time to 0.1%, v out = 2v step, a v = 1v/v 11.5 f s power-supply characteristics power-supply range v dd guaranteed by psrr 2.1 5.5 v power-supply rejection ratio psrr v in + = v in - = v ss , v dd - v ss = 2.1v to 5.5v t a = +25 n c 72 100 db t a = -40 n c to +125 n c 69 quiescent current i dd per amplifier t a = +25 n c 36 55 f a t a = -40 n c to +125 n c 60 shutdown supply current (MAX9636, max9638 only) i dd_shdn v shdn p v il 1 f a shutdown input low (MAX9636, max9638 only) v il over the power-supply range 0.5 v shutdown input high (MAX9636, max9638 only) v ih over the power-supply range 1.4 v shutdown input bias current (MAX9636, max9638 only) i shdn (note 3) 1 100 na turn-on time (MAX9636, max9638 only) t on v shdn = 0v to 3v 60 f s power-up time t up v dd = 0v to 3.3v 18 f s
3v/5v low-power, low-noise, cmos, rail-to-rail i/o op amps MAX9636/max9637/max9638 4 typical operating characteristics (v dd = 3.3v, v ss = 0v, v in+ = v in- = v cm = v dd /2, r l = 10k i to v dd /2, shdn = v dd , t a = -40 n c to +125 n c. typical values are at t a = +25 n c, unless otherwise noted.) offset voltage histogram MAX9636 toc01 offset voltage (mv) percent occurance (%) 0.9 0.7 1.0 0.8 0.1 0.2 0.3 0.4 0.5 0.6 0 2 4 6 8 10 12 14 16 18 20 0 offset voltage thermal coefficient hystogram MAX9636 toc02 offset voltage thermal coefficient (v/c) percent occurance (%) 1.0 0.1 0.2 0.3 0.5 0.7 0.6 0.8 0.4 0.9 5 10 15 20 25 30 35 40 0 0 input offset voltage vs. common-mode voltage MAX9636 toc03 common-mode voltage (v) offset voltage (v) 3.5 3.0 2.0 2.5 0.5 1.0 1.5 0 50 100 150 200 250 300 350 400 450 500 0 -0.5 4.0 t a = 0c t a = +25c t a = +85c t a = +125c t a = -40c input offset voltage vs. supply voltage v cm = v dd /2 MAX9636 toc04 supply voltage (v) offset voltage (v) 5 4 3 2 1 220 240 260 280 300 320 340 360 380 400 200 0 6 t a = -40c t a = +85c t a = +125c t a = 0c t a = +25c input bias current vs. common-mode voltage MAX9636 toc05 common-mode voltage (v) input bias current (pa) 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 -400 -200 0 200 400 600 -600 -0.5 4.0 t a = +125c t a = +85c t a = +25c output voltage low vs. sink current v dd = 2.1v MAX9636 toc06 sink current (ma) output voltage low (mv) 10 8 6 4 2 50 100 150 200 250 300 350 400 450 500 0 0 12 t a = +25c t a = 0c t a = -40c t a = +125c t a = +85c output voltage low vs. sink current v dd = 3.3v MAX9636 toc07 sink current (ma) output voltage low (mv) 10 8 6 4 2 50 100 150 200 250 0 0 12 t a = +125c t a = +85c t a = +25c t a = -40c t a = 0c output voltage low vs. sink current v dd = 5v MAX9636 toc08 sink current (ma) output voltage low (mv) 20 15 10 5 50 100 150 200 250 300 350 0 0 25 t a = +125c t a = +85c t a = +25c t a = -40c t a = 0c output voltage high vs. source current v dd = 2.1v, v oh = v dd - v out MAX9636 toc09 source current (ma) output voltage high (mv) 9 8 7 6 5 4 3 2 1 200 400 600 800 1000 1200 0 0 10 t a = +125c t a = +85c t a = +25c t a = -40c t a = 0c
3v/5v low-power, low-noise, cmos, rail-to-rail i/o op amps MAX9636/max9637/max9638 5 typical operating characteristics (continued) (v dd = 3.3v, v ss = 0v, v in+ = v in- = v cm = v dd /2, r l = 10k i to v dd /2, shdn = v dd , t a = -40 n c to +125 n c. typical values are at t a = +25 n c, unless otherwise noted.) output voltage high vs. source current v dd = 3.3v, v oh = v dd - v out MAX9636 toc10 source current (ma) output voltage high (mv) 30 25 15 20 10 5 200 400 600 800 1000 1200 1400 1600 1800 2000 0 0 35 t a = +125c t a = +85c t a = +25c t a = -40c t a = 0c output voltage high vs. source current v dd = 5v, v oh = v dd - v out MAX9636 toc11 source current (ma) output voltage high (mv) 45 40 35 30 25 20 15 10 5 0 50 200 400 600 800 1000 1200 0 t a = +125c t a = +85c t a = +25c t a = 0c t a = -40c supply current vs. supply voltage MAX9636 toc12 supply voltage (v) supply current (a) 5.5 5.0 4.0 4.5 3.0 3.5 2.5 27 29 31 33 35 37 39 41 43 45 25 2.0 6.0 t a = +125c t a = +85c t a = +25c t a = 0c t a = -40c open-loop gain and phase vs. frequency MAX9636 toc13 frequency (khz) 1000 100 1 10 0.1 0.01 0 open-loop gain (db) -40 -20 20 40 60 80 100 120 140 -60 -135 phase (deg) -90 -45 0 45 90 135 180 0.001 10,000 -180 phase gain common-mode rejection ratio vs. frequency MAX9636 toc14 frequency (khz) common-mode rejection ratio (db) 1000 100 10 1 0.1 10 20 30 40 50 60 70 80 90 100 0 0.01 10,000 dc common-mode rejection ratio vs. temperature MAX9636 toc15 temperature (c) dc common-mode rejection ratio (db) 100 75 25 50 0 -25 82 84 86 88 90 92 94 96 98 100 80 -50 125 power-supply rejection ratio vs. frequency MAX9636 toc16 frequency (khz) power-supply rejection ratio (db) 1000 100 10 1 0.1 10 20 30 40 50 60 70 80 90 100 0 0.01 10,000 dc power-supply rejection ratio vs. temperature MAX9636 toc17 temperature (c) dc power-supply rejection ratio (db) 100 75 25 50 0 -25 82 84 86 88 90 92 94 96 98 100 80 -50 125 input voltage noise vs. frequency MAX9636 toc18 frequency (khz) input voltage noise (nv/hz) 10 1 0.1 50 100 150 200 250 300 0 0.01 100
3v/5v low-power, low-noise, cmos, rail-to-rail i/o op amps MAX9636/max9637/max9638 6 typical operating characteristics (continued) (v dd = 3.3v, v ss = 0v, v in+ = v in- = v cm = v dd /2, r l = 10k i to v dd /2, shdn = v dd , t a = -40 n c to +125 n c. typical values are at t a = +25 n c, unless otherwise noted.) input current noise vs. frequency MAX9636 toc19 frequency (khz) input current noise (fa/hz) 10 1 0.1 20 40 60 80 100 120 140 0 0.01 100 0.1hz to 10hz voltage vs. time MAX9636 toc20 2v/div 5v p-p noise 10s/div total harmonic distortion vs. input voltage amplitude v dd = 5.5v, a o = 1v/v MAX9636 toc21 input voltage amplitude (v p-p ) total harmonic distortion (db) 5 4 3 2 1 -80 -70 -60 -50 -40 -30 -20 -10 0 -90 0 6 total harmonic distortion vs. frequency v dd = 5.5v, a o = 1v/v, v out = 2v p-p , r l = 10ki to v dd /2 MAX9636 toc22 frequency (khz) total harmonic distortion (db) 10 1 0.1 -100 -80 -60 -40 -20 0 -120 0.01 100 small-signal transient response MAX9636 toc23 1s/div v out 20mv/div v in 100mv/div large-signal transient response MAX9636 toc24 v in 2v/div v out 500mv/div 2s/div
3v/5v low-power, low-noise, cmos, rail-to-rail i/o op amps MAX9636/max9637/max9638 7 typical operating characteristics (continued) (v dd = 3.3v, v ss = 0v, v in+ = v in- = v cm = v dd /2, r l = 10k i to v dd /2, shdn = v dd , t a = -40 n c to +125 n c. typical values are at t a = +25 n c, unless otherwise noted.) percent overshoot vs. resistive load MAX9636 toc25 resistive load (i) percent overshoot (%) 100,000 10,000 1000 100 0 5 10 15 20 25 30 -5 10 1,000,000 c load = 300pf c load = 50pf c load = 100pf stability vs. capacitive and resistive load r iso in series with c load MAX9636 toc26 capacitive load (pf) resistive load (i) 10,000 1000 10 20 30 40 50 60 70 80 90 100 0 100 100,000 unstable stable stability vs. capacitive and resistive load r p in parallel with c l MAX9636 toc27 capacitive load (pf) resistive load (ki) 1000 10 20 30 40 50 60 70 80 90 100 0 100 10,000 unstable stable power-up time MAX9636 toc28 v dd 2v/div 40s/div v out 500mv/div turn-on time MAX9636 toc29 shdn 2v/div v out 500mv/div 100s/div
3v/5v low-power, low-noise, cmos, rail-to-rail i/o op amps MAX9636/max9637/max9638 8 pin configurations pin description v ss out in- 1 6 v dd 5 in+ sc70 top view 2 3 4 inb- inb+ v ss 1 2 8 7 v dd outb ina- ina+ outa sc70 + + + 3 4 6 5 MAX9636 max9637 shdn outa ina- outb v ss ina+ inb- utqfn 10 9 8 3 4 5 7 shdnb 6 shdna max9638 1 2 v dd inb+ MAX9636 (6 sc70) max9637 (8 sc70) max9638 (10 utqfn) name function 1 in+ positive input 3 4 ina+ positive input a 5 2 inb+ positive input b 2 4 5 v ss negative power supply. bypass with a 0.1 f f capacitor to ground. 3 in- negative input 2 9 ina- negative input a 6 3 inb- negative input b 4 out output 1 8 outa output a 7 10 outb output b 6 shdna active-low shutdown a 7 shdnb active-low shutdown b 5 shdn active-low shutdown 6 8 1 v dd positive power supply. bypass with a 0.1 f f capacitor to ground.
3v/5v low-power, low-noise, cmos, rail-to-rail i/o op amps MAX9636/max9637/max9638 9 detailed description the MAX9636/max9637/max9638 are single-supply, cmos input op amps. they feature wide bandwidth at low quiescent current, making them suitable for a broad range of battery-powered applications such as por - table medical instruments, portable media players, and smoke detectors. a combination of extremely low input bias currents, low input current noise, and low input volt - age noise allows interface to high-impedance sources such as photodiode and piezoelectric sensors. these devices are also ideal for general-purpose signal pro - cessing functions such as filtering and amplification in a broad range of portable, battery-powered applications. the devices operational common-mode range extends 0.1v beyond the supply rails, allowing for a wide variety of single-supply applications. the ics also feature low quiescent current and a shut - down mode that greatly reduces quiescent current while the device is not operational. this makes the device suit - able for portable applications where power consumption must be minimized. rail-to-rail input stage the operational amplifiers have parallel-connected n- and p-channel differential input stages that combine to accept a common-mode range extending 100mv beyond the supply rails. the n-channel stage is active for common-mode input voltages typically greater than (v dd - 1.2v), and the p-channel stage is active for com - mon-mode input voltages typically less than (v dd - 1.4v). a small transition region exists, typically v dd - 1.4 to v dd - 1.2v, during which both pairs are on. rail-to-rail output stage the maximum output voltage swing is load dependent. however, it is guaranteed to be within 100mv of the positive rail even with 3ma of load current. to maximize the output current sourcing capability, these parts do not come with built-in short-circuit protection. if loads heavier than 600 must be driven, then ensure that the maximum allowable power dissipation is not exceeded (see the absolute maximum ratings section). low input bias current this op-amp family features ultra-low 0.1pa (typ) input bias current and guaranteed maximum current of q 50pa over -40 n c to +85 n c when the input common-mode volt - age is at midrail. for the -40 n c to +85 n c temperature range, the variation in the input bias current is small with changes in the input voltage due to very high input impedance (in the order of 100g i ). power-up time the ics typically require a power-up time of 18s. supply settling time depends on the supply voltage, the value of the bypass capacitor, the output imped - ance of the incoming supply, and any lead resistance or inductance between components. op amp settling time depends primarily on the output voltage and is slew-rate limited. the output settles in approximately 11.5s for v dd = 3v and v out = v dd /2v (see the power-up time graph in the typical operating characteristics section).
3v/5v low-power, low-noise, cmos, rail-to-rail i/o op amps MAX9636/max9637/max9638 10 driving capacitive loads the ics have a high tolerance for capacitive loads. in unity-gain configuration, the op amps can typically drive up to 300pf pure capacitive load. increasing the gain enhances the amplifiers ability to drive greater capacitive loads. in unity-gain configurations, capacitive load drive can be improved by inserting a small (5 i to 30 i ) isolation resistor, r iso , in series with the output, as shown in figure 1. this significantly reduces ringing while maintaining dc performance for purely capaci - tive loads. however, if the load also has a resistive component then a voltage-divider is created, introduc - ing a direct current (dc) error at the output. the error introduced is proportional to the ratio riso/rl, which is usually negligible in most cases. applications that cannot tolerate this slight dc error can use an alterna - tive approach of providing stability by placing a suitable resistance in parallel with the capacitive load as shown in figure 2 (see the typical operating characteristics section for graphs of the stable operating region for various capacitive loads vs. resistive loads). while this approach of adding a resistor parallel to the load does not introduce dc error, it nevertheless reduces the out - put swing proportionally. high-impedance sensor front-ends the ics interface to both current-output sensors, such as photodiodes (figure 3), and high-impedance voltage sources, such as piezoelectric sensors. for current- output sensors, a transimpedance amplifier is the most noise-efficient method for converting the input signal to a voltage. high-value feedback resistors are commonly chosen to create large gains, while feedback capacitors help stabilize the amplifier by cancelling any poles intro - duced in the feedback function by the highly capacitive sensor or cabling. a combination of low-current noise and low-voltage noise is important for these applications. take care to calibrate out photodiode dark current if dc accuracy is important. the high bandwidth and slew rate also allows ac signal processing in certain medical photodiode sensor applications such as pulse oximetry. for voltage-output sensors, a noninverting amplifier is typically used to buffer and/or apply a small gain to the input voltage signal. due to the extremely high imped - ance of the sensor output, a low input bias current with minimal temperature variation is very important for these applications. figure 3. MAX9636 in a sensor preamp configuration figure 1. using a series resistor to isolate the capacitive load from the op amp figure 2. using a parallel resistor to degenerate the effect of the capacitive load and increase stability signal conditioning/ filters photodiode in- in+ v dd out ref adc max1286 MAX9636 - + r l r l r l + r iso a v = r iso 1v/v c l MAX9636/ max9637/ max9638 - + r p r l c l MAX9636/ max9637/ max9638
3v/5v low-power, low-noise, cmos, rail-to-rail i/o op amps MAX9636/max9637/max9638 11 for best performance, follow standard high-impedance layout techniques, which include the following: u using shielding techniques to guard against parasitic leakage paths. for example, put a trace connected to the noninverting input around the inverting input. u minimizing the amount of stray capacitance connect - ed to op amps inputs to improve stability. to achieve this, minimize trace lengths and resistor leads by placing external components as close as possible to the package. u use separate analog and digital power supplies. applications information shutdown operation the MAX9636/max9638 feature an active-low shutdown mode that sends the inputs and output into high imped - ance and substantially lowers the quiescent current. active-low input the shutdown active-low (v il ) and high (v ih ) threshold voltages are designed for ease of integration with digital controls, such as microcontroller outputs. these thresh - olds are independent of supply, eliminating the need for external pulldown circuitry. output during shutdown the max9638 output is in a high-impedance state while shdn is low. the device structure limits the output leakage current in this state to 0.01a when the output is between 0v to v dd . adc driver the MAX9636/max9637/max9638 are low-power ampli - fiers ideal for driving high to medium-resolution adcs. figure 3 shows how the MAX9636 is connected to a pho - todiode, with the amplifier output connected to additional signal conditioning/filtering, or directly to the adc. the max1286Cmax1289 family of low-power, 12-bit adcs are ideal for connecting to the MAX9636/max9637/max9638. the max1286Cmax1289 adcs offer sample rates up to 150ksps, with 3v and 5v supplies, as well as 1- and 2-channel options. these adcs dissipate just 15a when sampling at 10ksps and 0.2a in shutdown. offered in tiny 8-pin sot23 and 3mm x 3mm tdfn packages, the max1286Cmax1289 adcs are an ideal fit to pair with the MAX9636/max9637/max9638 amplifiers in portable applications. similarly, the max1086Cmax1089 is a family of 10-bit pin-compatible low-power adcs with the same 3v/5v, 1- and 2-channel options. table 1 details the amplifier and adc pairings for single- and dual-channel applications. chip information process: bicmos table 1. recommended amplifiers/adcs channels amplifier adc 3v, 10 bit 3v, 12 bit 5v, 10 bit 5v, 12 bit 1 MAX9636 max1089 max1289 max1088 max1288 2 max9637 max1087 max1287 max1086 max1286 2 max9638 max1087 max1287 max1086 max1286
3v/5v low-power, low-noise, cmos, rail-to-rail i/o op amps MAX9636/max9637/max9638 12 package type package code document no. 6 sc70 x6sn+1 21-0077 8 sc70 x8cn+1 21-0460 10 utqfn v101a1cn+1 21-0028 package information for the latest package outline information and land patterns, go to www.maxim-ic.com/packages . note that a +, #, or - in the package code indicates rohs status only. package drawings may show a different suffix character, but the drawing pertains to the package regardless of rohs status. sc70, 6l.eps
3v/5v low-power, low-noise, cmos, rail-to-rail i/o op amps MAX9636/max9637/max9638 13 package information (continued) for the latest package outline information and land patterns, go to www.maxim-ic.com/packages . note that a +, #, or - in the package code indicates rohs status only. package drawings may show a different suffix character, but the drawing pertains to the package regardless of rohs status.
3v/5v low-power, low-noise, cmos, rail-to-rail i/o op amps MAX9636/max9637/max9638 14 package information (continued) for the latest package outline information and land patterns, go to www.maxim-ic.com/packages . note that a +, #, or - in the package code indicates rohs status only. package drawings may show a different suffix character, but the drawing pertains to the package regardless of rohs status. ultra tqfn.eps table 1 table 2
3v/5v low-power, low-noise, cmos, rail-to-rail i/o op amps MAX9636/max9637/max9638 15 package information (continued) for the latest package outline information and land patterns, go to www.maxim-ic.com/packages . note that a +, #, or - in the package code indicates rohs status only. package drawings may show a different suffix character, but the drawing pertains to the package regardless of rohs status. ultra tqfn.eps table 1 table 2
3v/5v low-power, low-noise, cmos, rail-to-rail i/o op amps MAX9636/max9637/max9738 maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim product. no circuit patent licenses are implied. maxim reserves the right to change the circuitry and specifications without notice at any time. 16 maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 ? 2010 maxim integrated products maxim is a registered trademark of maxim integrated products, inc. revision history revision number revision date description pages changed 0 6/10 initial release

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