OP177G Analog Devices, OP177G Datasheet

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OP177G

Manufacturer Part Number
OP177G
Description
Manufacturer
Analog Devices
Datasheet

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a
GENERAL DESCRIPTION
The OP177 features the highest precision performance of any
op amp currently available. Offset voltage of the OP177 is only
25 µV max at room temperature. The ultralow V
OP177 combines with its exceptional offset voltage drift
(TCV
V
temperature.
The OP177’s open-loop gain of 12 V/µV is maintained over the
full ± 10 V output range. CMRR of 130 dB min, PSRR of
120 dB min, and maximum supply current of 2 mA are just a
few examples of the excellent performance of this operational
amplifier. The OP177’s combination of outstanding specifications
ensures accurate performance in high closed-loop gain applications.
OS
adjustment and increases system accuracy over
OS
) of 0.1 µV/°C max to eliminate the need for external
NONINVERTING
INVERTING
INPUT
INPUT
V+
V–
R3
R4
R2A AND R2B ARE ELECTRONICALLY ADJUSTED ON CHIP AT FACTORY.
NOTE:
Q5
2B
Q21
Q22
Q7
Q23
Q24
R2A
R1A
Q3
Q1
Q6
OS
(OPTIONA
of the
NULL)
L
Q8
Q4
Q2
R2B
R1B
Q27
Q26
Q25
This low noise bipolar input op amp 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-pin epoxy DIPs, as well as the space saving 8-pin Small-
Outline (SO).
R5
C1
C3
Q9
Q11
Q13
C2
Q12
Q14
V
OS
Q10
PIN CONNECTIONS
TRIM
Operational Amplifier
–IN
+IN
V–
Epoxy Mini-DIP
NC = NO CONNECT
Q17
1
2
3
4
(S-Suffix)
(P Suffix)
8-Pin SO
Q16
Q15
R6
Ultraprecision
Q18
R8
R7
8
7
6
5
Q19
Q20
V
V+
OUT
NC
OS
R9
R10
TRIM
OP177
OUTPUT

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OP177G Summary of contents

Page 1

GENERAL DESCRIPTION The OP177 features the highest precision performance of any op amp currently available. Offset voltage of the OP177 is only 25 µV max at room temperature. The ultralow V OP177 combines with its exceptional offset voltage drift ...

Page 2

... V ± 13.5 ± 14.0 10 kΩ ± 12.5 ± 13.0 2 kΩ ± 12.0 ± 12.5 1 kΩ 2 kΩ 0.1 0 0.4 0.6 60 OP177 OP177G Min Typ Max Unit µ µV/Mo 0.4 0.3 2.8 nA –0.2 1.2 2.8 nA 118 ...

Page 3

POWER = ± CONSUMPTION Load Vs = ± Load SUPPLY = ± CURRENT Load OFFSET ADJUSTMENT RANGE kΩ P NOTES ...

Page 4

... V ≤ V ≤ ≤ 200k 50 – OP177 4000 20k V+ – – OP177 INPUT OUTPUT + + V TRIM RANGE IS OS TYPICALLY 3.0mV V– OP177G Max Min Typ Max Unit µ 100 µV/°C 0.3 0.7 1.2 2.2 0.5 4 1.5 85 pA/°C ± 2 pA/°C ± 13 ± ...

Page 5

... Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . ± Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± Output Short-Circuit Duration . . . . . . . . . . . . . . . . Indefinite Storage Temperature Range S, P Package . . . . . . . . . . . . . . . . . . . . . . . –65°C to +125°C Operating Temperature Range OP177F, OP177G . . . . . . . . . . . . . . . . . . –40°C to +85°C Lead Temperature Range (Soldering, 60 sec 300°C DICE Junction Temperature ( –65°C to +150° ...

Page 6

OP177–Typical Performance Characteristics ...

Page 7

OP177 ...

Page 8

OP177 APPLICATION INFORMATION Gain Linearity The actual open-loop gain of most monolithic op amps varies at different output voltages. This nonlinearity causes errors in high closed-loop gain circuits important to know that the manufacturer’s A cation is only ...

Page 9

Table II. High Gain Differential Amp Performance Type Amount Common-Mode Voltage 0.1%/V Gain Linearity, Worst Case 0.02% TCV 0.0003%/°C OS TCI 0.008%/°C OS ISOLATING LARGE CAPACITIVE LOADS The circuit in Figure 10 reduces maximum slew rate but allows driving capacitive ...

Page 10

OP177 BILATERAL CURRENT SOURCE The current sources shown in Figure 11 will supply both positive and negative current into a grounded load.     R5   Note that Z R5 ...

Page 11

Revision History Location 01/30—Data Sheet changed from REV REV. C. Edits to FEATURES . . . . . . . . . . . . . . . . . . . . . ...

Page 12

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