op97fz Analog Devices, Inc., op97fz Datasheet

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op97fz

Manufacturer Part Number
op97fz
Description
Low-power, High-precision Operational Amplifier
Manufacturer
Analog Devices, Inc.
Datasheet

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FEATURES
Low supply current: 600 μA maximum
OP07 type performance
Very low bias current
High common-mode rejection: 114 dB minimum
Extended industrial temperature range: −40°C to +85°C
GENERAL DESCRIPTION
The OP97 is a low power alternative to the industry-standard
OP07 precision amplifier. The OP97 maintains the standards of
performance set by the OP07 while utilizing only 600 μA supply
current, less than 1/6 that of an OP07. Offset voltage is an ultralow
25 μV, and drift over temperature is below 0.6 μV/°C. External
offset trimming is not required in the majority of circuits.
Improvements have been made over OP07 specifications in
several areas. Notable is bias current, which remains below
250 pA over the full military temperature range. The OP97 is
ideal for use in precision long-term integrators or sample-and-
hold circuits that must operate at elevated temperatures.
Rev. F
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 that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
Offset voltage: 20 μV maximum
Offset voltage drift: 0.6 μV/°C maximum
25°C: 100 pA maximum
−55°C to +125°C: 250 pA maximum
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
Common-mode rejection and power supply rejection are also
improved with the OP97, at 114 dB minimum over wider
ranges of common-mode or supply voltage. Outstanding PSR, a
supply range specified from ±2.25 V to ±20 V, and the minimal
power requirements of the OP97 combine to make the OP97 a
preferred device for portable and battery-powered instruments.
The OP97 conforms to the OP07 pinout, with the null potenti-
ometer connected between Pin 1 and Pin 8 with the wiper to
V+. The OP97 upgrades circuit designs using AD725, OP05,
OP07, OP12, and PM1012 type amplifiers. It may replace 741-
type amplifiers in circuits without nulling or where the nulling
circuitry has been removed.
Low Power, High Precision
NULL
©1997–2007 Analog Devices, Inc. All rights reserved.
Operational Amplifier
Figure 1. 8-Lead PDIP (P Suffix)
+IN
–IN
PIN CONNECTIONS
V–
8-Lead SOIC (S Suffix)
1
2
3
4
OP97
8
7
6
5
NULL
V+
OUT
OVER
COMP
www.analog.com
OP97

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op97fz Summary of contents

Page 1

... OP07, OP12, and PM1012 type amplifiers. It may replace 741- type amplifiers in circuits without nulling or where the nulling circuitry has been removed. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 Fax: 781.461.3113 ©1997–2007 Analog Devices, Inc. All rights reserved. OP97 NULL V+ OUT OVER COMP www ...

Page 2

OP97 TABLE OF CONTENTS Features .............................................................................................. 1 Pin Connections ............................................................................... 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Electrical Characteristics ............................................................. 3 Absolute Maximum Ratings ............................................................ 5 Thermal Resistance ...................................................................... 5 REVISION HISTORY 11/07—Rev ...

Page 3

SPECIFICATIONS ELECTRICAL CHARACTERISTICS V = ± 25°C, unless otherwise noted Table 1. Parameter Symbol INPUT CHARACTERISTICS Input Offset Voltage V OS Long-Term Offset Voltage Stability ΔV OS Input Offset Current ...

Page 4

OP97 V = ± −40°C ≤ T ≤ +85°C for the OP97E/OP97F, unless otherwise noted Table 2. Parameter Symbol Input Offset Voltage V OS Average Temperature TCV OS Coefficient ...

Page 5

ABSOLUTE MAXIMUM RATINGS Absolute maximum ratings apply to both DICE and packaged parts, unless otherwise noted. Table 3. Parameter Supply Voltage 1 Input Voltage 2 Differential Input Voltage 2 Differential Input Current Output Short-Circuit Duration Operating Temperature Range OP97E, OP97F ...

Page 6

OP97 TYPICAL PERFORMANCE CHARACTERISTICS 400 1894 UNITS 300 200 100 0 –40 –20 0 INPUT OFFSET VOLTAGE (µV) Figure 2. Typical Distribution of Input Offset Voltage 400 1920 UNITS 300 200 100 0 –100 –50 0 INPUT BIAS CURRENT (pA) ...

Page 7

BALANCED OR UNBALANCED V = ±15V 100 –55°C ≤ T ≤ +125° 25° 10k 30k 100k 300k 1M SOURCE RESISTANCE (Ω) Figure 8. Effective Offset Voltage ...

Page 8

OP97 10k V = ±15V ±10V O 1k 100 LOAD RESISTANCE (kΩ) Figure 14. Open-Loop Gain vs. Load Resistance 25° ±2V TO ±20V S 100 CURRENT NOISE 10 ...

Page 9

GAIN T = –55° PHASE +125° –55°C A – ±15V 20pF L – 1MΩ L 100pF OVERCOMPENSATION –60 100 1k 10k 100k ...

Page 10

OP97 PHASE T = +125° –55°C A GAIN +125°C A – ±15V 20pF L – 1MΩ L 100pF OVERCOMPENSATION –60 100 1k 10k ...

Page 11

APPLICATION INFORMATION The OP97 is a low power alternative to the industry-standard precision op amp, the OP07. The OP97 can be substituted directly into OP07, OP77, AD725, and PM1012 sockets with improved performance and/or less power dissipation and can be ...

Page 12

OP97 AC PERFORMANCE The ac characteristics of the OP97 are highly stable over its full operating temperature range. Unity-gain small-signal response is shown in Figure 30. Extremely tolerant of capacitive loading on the output, the OP97 displays excellent response even ...

Page 13

GUARDING AND SHIELDING To maintain the extremely high input impedances of the OP97, care must be taken in circuit board layout and manufacturing. Board surfaces must be kept scrupulously clean and free of moisture. Conformal coating is recommended to provide ...

Page 14

OP97 The digitally programmable gain amplifier shown in Figure 38 has 12-bit gain resolution with 10-bit gain linearity over the range of −1 to −1024. The low bias current of the OP97 main- tains this linearity, while C1 limits the ...

Page 15

OUTLINE DIMENSIONS 0.210 (5.33) MAX 0.150 (3.81) 0.130 (3.30) 0.115 (2.92) 0.022 (0.56) 0.018 (0.46) 0.014 (0.36) CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETER DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN ...

Page 16

... OP97FSZ-REEL −40°C to +85°C 1 OP97FSZ-REEL7 −40°C to +85° RoHS Compliant Part. ©1997–2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D00299-0-11/07(F) Package Description 8-Lead PDIP 8-Lead PDIP 8-Lead PDIP ...

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