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FEATURES Low Supply Current: 600 A Max Very Low Offset: 35 V Max Low Drift: 1.5 V/ C Max Very Low Bias Current 25 C: 100 pA Max Low Noise: 0.5 V p-p Typ High Common-Mode Rejection: 114 dB Min
Low Power Precision Operational Amplifier PM1012
PIN CONNECTIONS Plastic Mini-DIP (P Suffix) 8-Lead SO (S Suffix)
NULL 1 -IN +IN
2 3
8 7 6
NULL V+ OUT OVER COMP
V- 4
PM1012
5
GENERAL DESCRIPTION
The PM1012 is a general purpose, precision operational amplifier. Offering several performance enhancements over industrystandard precision op amps such as the OP07, the PM1012 requires less than 1/6 the supply current. These enhancements include exceptionally low bias currents of only 80 pA, typical, over the full military temperature range, and 132 dB of common-mode rejection and power-supply rejection. The PM1012's low offset voltage of 35 V maximum frees the user from external nulling in most circuits. An open-loop gain of two million into a 10 k load ensures that excellent linearity is maintained even in high gain configurations, and 5 mA of output current allows 2 k loads to be driven with an open-loop gain of one million. The PM1012 offers low noise, especially for a low power amplifier--only 17 nV/Hz at 10 Hz. Exceptionally low current noise minimizes
noise contributions when high source impedances are used. The PM1012 may be overcompensated, using Pin 5 to limit the amplifier's bandwidth, further reducing system noise and increasing stability with large capacitive loads. The PM1012 conforms to the OP07 pinout with nulling through Pins 1 and 8 to the positive supply. It offers an upgrade to the OP07 in sockets where reduced power dissipation or low bias currents are attractive. It may also be used as an upgrade from the OP12, OP05 and 725 type op amps. The PM1012 may replace 741 type op amps by removing the nulling potentiometer, if used.
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Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 World Wide Web Site: http://www.analog.com Fax: 781/326-8703 (c) Analog Devices, Inc., 1998
PM1012-SPECIFICATIONS
ELECTRICAL CHARACTERISTICS (@ V =
S
15 V, VCM = 0 V, TA = +25 C, unless otherwise noted)
Min PM1012G Typ 10 25 0.3 20 30 30 40 0.5 17 14 20 2000 1000 132 132 14.0 14 0.2 3 0.5 380 15 Max 50 120 Units V V V/Month pA pA pA pA V p-p nV/Hz nV/Hz fA/Hz V/mV V/mV dB dB V V V/s kHz MHz A V
Parameter Input Offset Voltage Long-Term VOS Stability Input Offset Current Input Bias Current Input Noise Voltage Input Noise Voltage Density Input Noise Current Density Large-Signal Voltage Gain Common-Mode Rejection Power-Supply Rejection Input Voltage Range Output Voltage Swing Slew Rate Full-Power Bandwidth Gain Bandwidth Product Supply Current Supply Voltage
Symbol VOS VOS/Time IOS IB e n p-p en In A VO CMR PSR IVR VO SR BWP GBW ISY VS
Conditions (Note 1)
(Note 1) (Note 1) 0.1 Hz to 10 Hz fO = 10 Hz2 fO = 1000 Hz3 fO = 10 Hz VO = 12 V; RL = 10 k VO = 10 V; RL = 2 k VCM = 13.5 V VS = 2 V to 20 V (Note 4) RL = 10 k
150 200 150 200 30 22
200 120 110 110 13.5 13 0.1
AV = +100 (Note 1) Operating Range
2
600 20
NOTES 1 These specifications apply for 2 V VS 20 V and -13.5 V VCM +13.5 V (for V S = 15 V). 2 10 Hz noise voltage density is sample tested. Devices 100% tested for noise are available on request. 3 Sample tested. 4 Guaranteed by CMR test. Specifications subject to change without notice.
ELECTRICAL CHARACTERISTICS (@ V =
S
15 V, VCM = 0 V, -40 C TA +85 C for PM1012GP, GS, unless otherwise noted)
Min PM1012G Typ 20 30 Max 120 200 1.5 230 300 2.5 230 300 2.5 Units V V V/C pA pA pA/C pA pA pA/C V/mV V/mV dB dB V V V/s A V
Parameter Input Offset Voltage Average Temperature Coefficient of VOS Input Offset Current Average Temperature Coefficient of I OS Input Bias Current Average Temperature Coefficient of IB Large Signal Voltage Gain Common-Mode Rejection Power Supply Rejection Input Voltage Range Output Voltage Swing Slew Rate Supply Current Supply Voltage
Symbol VOS TCVOS IOS TCIOS IB
Conditions
(Note 1) (Note 1) 0.2 20 40 0.3 35 50 0.3 1500 800 130 128 14.0 14 0.15 400 15
(Note 1)
TCIB A VO CMR PSR IVR VO SR ISY VS
VO = 12 V; RL = 10 k VO = 10 V; RL = 2 k VCM = 13.5 V VS = 2.5 V to 20 V (Note 2) RL = 10 k (Note 1) Operating Range
150 100 108 108 13.5 13 0.05 2.5
800 20
NOTES 1 These specifications apply for 2.5 V V S 20 V and -13.5 V VCM +13.5 V (for V S = 15 V). 2 Guaranteed by CMR test. Specifications subject to change without notice.
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PM1012
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 V Input Voltage2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 V Differential Input Voltage3 . . . . . . . . . . . . . . . . . . . . . . 1 V Differential Input Current3 . . . . . . . . . . . . . . . . . . . . 10 mA Output Short-Circuit Duration . . . . . . . . . . . . . . . . Indefinite Operating Temperature Range PM1012G (P, S) . . . . . . . . . . . . . . . . . . . . -40C to +85C Storage Temperature Range . . . . . . . . . . . . -65C to +150C Junction Temperature Range . . . . . . . . . . . . -65C to +150C Lead Temperature (Soldering, 60 sec) . . . . . . . . . . . +300C Package Type 8-Lead Plastic DIP (P) 8-Lead SO (S)
4 JA JC
ABSOLUTE MAXIMUM RATINGS 1
NOTES 1 Absolute maximum ratings apply to both DICE and packaged parts, unless otherwise noted. 2 For supply voltages less than 20 V, the absolute maximum input voltage is equal to the supply voltage. 3 The PM1012's inputs are protected by back-to-back diodes. Current-limiting resistors are not used in order to achieve low noise. Differential input voltages greater than 1 V will cause excessive current to flow through the input protection diodes unless limiting resistance is used. 4 JA is specified for worst case mounting conditions, i.e., JA is specified for device in socket for cerdip, and P-DIP packages; JA is specified for device soldered to printed circuit board for SO package.
ORDERING GUIDE
Units C/W C/W Model PM1012GP PM1012GS
103 158
43 43
Temperature Range -40C to +85C -40C to +85C
Package Description Plastic DIP SOIC
Package Options N-8 SO-8
CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the PM1012 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality.
WARNING!
ESD SENSITIVE DEVICE
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PM1012
OUTLINE DIMENSIONS
Dimensions shown in inches and (mm).
8-Lead Plastic DIP (N-8)
C3190-2.5-2/98
0.195 (4.95) 0.115 (2.93) 0.430 (10.92) 0.348 (8.84)
8 5
1
4
0.280 (7.11) 0.240 (6.10) 0.060 (1.52) 0.015 (0.38) 0.325 (8.25) 0.300 (7.62)
PIN 1 0.210 (5.33) MAX
0.130 (3.30) 0.160 (4.06) MIN 0.115 (2.93) 0.022 (0.558) 0.100 0.070 (1.77) SEATING PLANE 0.014 (0.356) (2.54) 0.045 (1.15) BSC
0.015 (0.381) 0.008 (0.204)
8-Lead SOIC (SO-8)
0.1968 (5.00) 0.1890 (4.80)
8 1 5 4
0.1574 (4.00) 0.1497 (3.80)
0.2440 (6.20) 0.2284 (5.80)
PIN 1 0.0098 (0.25) 0.0040 (0.10)
0.0688 (1.75) 0.0532 (1.35)
0.0196 (0.50) x 45 0.0099 (0.25)
0.0500 0.0192 (0.49) SEATING (1.27) 0.0098 (0.25) PLANE BSC 0.0138 (0.35) 0.0075 (0.19)
8 0
0.0500 (1.27) 0.0160 (0.41)
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PRINTED IN U.S.A.

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