Ultraprecision Operational Amplifier
Data Sheet
OP177
Rev. H Document Feedback
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FEATURES
Ultralow offset voltage
T
A
= 25°C, 25 μV maximum
Outstanding offset voltage drift 0.3 μV/°C maximum
Excellent open-loop gain and gain linearity
12 V/μV typical
CMRR: 130 dB minimum
PSRR: 115 dB minimum
Low supply current 2.0 mA maximum
Fits industry-standard precision operational amplifier
sockets
PIN CONFIGURATION
8
7
6
5
1
2
3
4
NC = NO CONNECT
–IN
+IN
V+
OUT
NCV–
V
OS
TRIM V
OS
TRIM
00289-001
OP177
TOP VIEW
(Not to Scale)
Figure 1. 8-Lead PDIP (P-Suffix),
8-Lead SOIC (S-Suffix)
GENERAL DESCRIPTION
The OP177 features one of the highest precision performance of
any operational amplifier currently available. Offset voltage of the
OP177 is only 25 μV maximum at room temperature. The ultralow
V
OS
of the OP177 combines with the exceptional offset voltage
drift (TCV
OS
) of 0.3 μV/°C maximum to eliminate the need for
external V
OS
adjustment and increases system accuracy over
temperature.
The OP177 open-loop gain of 12 V/μV is maintained over the full
±10 V output range. CMRR of 130 dB minimum, PSRR of 120 dB
minimum, and maximum supply current of 2 mA are just a few
examples of the excellent performance of this operational amplifier.
The combination of outstanding specifications of the OP177
ensures accurate performance in high closed-loop gain
applications.
This low noise, bipolar input operational amplifier is also a cost
effective alternative to chopper-stabilized amplifiers. The OP177
provides chopper-type performance without the usual problems
of high noise, low frequency chopper spikes, large physical size,
limited common-mode input voltage range, and bulky external
storage capacitors.
The OP177 is offered in the 40°C to +85°C extended industrial
temperature ranges. This product is available in 8-lead PDIP, as
well as the space saving 8-lead SOIC.
FUNCTIONAL BLOCK DIAGRAM
2B
C
1
R
7
(OPTIONAL NULL)
Q
19
R
2B
*R
2A
*
R
1B
R
1A
R
9
R
10
OUTPUT
R
8
R
6
C
3
C
2
Q
13
Q
17
R
5
Q
27
Q
26
Q
25
Q
8
Q
7
Q
23
Q
24
Q
21
Q
22
Q
9
Q
4
Q
6
Q
3
Q
5
R
3
R
4
Q
1
Q
2
Q
11
Q
12
Q
14
Q
10
Q
16
Q
15
Q
18
Q
20
V+
V–
NONINVERTING
INPUT
INVERTING
INPUT
*R
2A
AND R
2B
ARE ELECTRONICALLY ADJUSTED ON CHIP AT FACTORY.
00289-002
Figure 2. Simplified Schematic
OP177* PRODUCT PAGE QUICK LINKS
Last Content Update: 02/23/2017
COMPARABLE PARTS
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EVALUATION KITS
EVAL-OPAMP-1 Evaluation Board
DOCUMENTATION
Application Notes
AN-649: Using the Analog Devices Active Filter Design
Tool
Data Sheet
OP177: Ultraprecision Operational Amplifier Data Sheet
TOOLS AND SIMULATIONS
OP177 SPICE Macro-Model
REFERENCE DESIGNS
CN0039
CN0040
CN0041
CN0042
CN0048
CN0052
CN0061
REFERENCE MATERIALS
Technical Articles
High-Voltage Monitor Features High Accuracy
DESIGN RESOURCES
OP177 Material Declaration
PCN-PDN Information
Quality And Reliability
Symbols and Footprints
DISCUSSIONS
View all OP177 EngineerZone Discussions.
SAMPLE AND BUY
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TECHNICAL SUPPORT
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number.
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OP177 Data Sheet
Rev. H | Page 2 of 16
TABLE OF CONTENTS
Features .............................................................................................. 1
Pin Configuration ............................................................................. 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Electrical Characteristics ............................................................. 3
Test Circuits ................................................................................... 4
Absolute Maximum Ratings ............................................................ 5
Thermal Resistance ...................................................................... 5
ESD Caution .................................................................................. 5
Typical Performance Characteristics ............................................. 6
Applications Information .................................................................9
Gain Linearity ................................................................................9
Thermocouple Amplifier with Cold-Junction Compensation9
Precision High Gain Differential Amplifier ........................... 10
Isolating Large Capacitive Loads .............................................. 10
Bilateral Current Source ............................................................ 10
Precision Absolute Value Amplifier ......................................... 10
Precision Positive Peak Detector .............................................. 12
Precision Threshold Detector/Amplifier ................................ 12
Outline Dimensions ....................................................................... 13
Ordering Guide .......................................................................... 14
REVISION HISTORY
4/16Rev. G to Rev. H
Changes to Figure 27 ........................................................................ 9
9/12Rev. F to Rev. G
Changes to Features and General Description Section ............... 1
Updated Outline Dimensions ....................................................... 13
Changes to Ordering Guide .......................................................... 14
3/09Rev. E to Rev. F
Added Figure 23, Renumbered Sequentially ................................ 8
Updated Outline Dimensions ....................................................... 13
5/06Rev. D to Rev. E
Changes to Figure 1 .......................................................................... 1
Change to Specifications Table 1 .................................................... 3
Changes to Specifications Table 2................................................... 4
Changes to Table 3 ............................................................................ 5
Changes to Figure 23 and Figure 24 ............................................... 9
Changes to Figure 32 ...................................................................... 12
Updated the Ordering Guide ........................................................ 14
4/06Rev. C to Rev. D
Change to Pin Configuration Caption ........................................... 1
Changes to Features .......................................................................... 1
Change to Table 2 .............................................................................. 4
Change to Figure 2 ............................................................................ 4
Changes to Figure 10 and Figure 11 ............................................... 6
Changes to Figure 12 through Figure 17 ........................................ 7
Changes to Figure 18 through Figure 22 ........................................ 8
Change to Figure 27 ....................................................................... 10
Changes to Figure 30 and Figure 31 ............................................ 11
Updated Outline Dimensions ....................................................... 13
Changes to Ordering Guide .......................................................... 13
1/05Rev. B to Rev. C
Edits to Features................................................................................. 1
Edits to General Description ........................................................... 1
Edits to Pin Connections .................................................................. 1
Edits to Electrical Characteristics .............................................. 2, 3
Global deletion of references to OP177E ............................ 3, 4, 10
Edits to Absolute Maximum Ratings .............................................. 5
Edits to Package Type ....................................................................... 5
Edits to Ordering Guide ................................................................... 5
Edit to Outline Dimensions .......................................................... 11
11/95Rev. 0: Initial Version

OP177FPZ

Mfr. #:
Manufacturer:
Analog Devices Inc.
Description:
Precision Amplifiers ULTRA-PREC IC Low Supply Crnt 2mA
Lifecycle:
New from this manufacturer.
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