OP77_02 Datasheet, PDF (1/16 Pages) Analog Devices – Next Generation OP07 Ultralow Offset Voltage Operational Amplifier

a Next Generation OP07
Ultralow Offset Voltage Operational Amplifier
OP77
FEATURES
Outstanding Gain Linearity
Ultrahigh Gain 5000 V/mV Min
Low V_OS Over Temperature 60 ␮V Max
Excellent TCVos 0.3 ␮V/؇C Max
High PSRR 3 ␮V/V Max
Low Power Consumption 60 mW Max
Fits OP07, 725,108A/308A, 741 Sockets
Available in Die Form
PIN CONNECTIONS
Epoxy Mini-Dip (P-Suffix)
8-Pin Hermetic DIP
V_OS TRIM ¹
–IN 2
+IN 3
V– 4
OP07
8 V_OS TRIM
7 V+
6 OUT
5 NC
NC = NO CONNECT
GENERAL DESCRIPTION
The OP77 significantly advances the state-of-the-art in precision
op amps. The OP77’s outstanding gain of 10,000,000 or more
is maintained over the full 10 V output range. This exceptional
gain-linearity eliminates incorrectable system nonlinearities
common in previous monolithic op amps, and provides superior
performance in high closed-loop gain applications. Low initial
V_OS drift and rapid stabilization time, combined with only 50
mW power consumption, are significant improvements over
previous designs. These characteristics, plus the exceptional
TCV_OS of 0.3 mV/∞C maximum and the low V_OS of 25 mV maxi-
mum, eliminates the need for V_OS adjustment and increases
system accuracy over temperature.
PSRR of 3 mV/V (110 dB) and CMRR of 1.0 mV/V maximum
virtually eliminate errors caused by power supply drifts and
common-mode signals. This combination of outstanding char-
acteristics makes the OP77 ideally suited for high-resolution
instrumentation and other tight error budget systems.
TO-99
(J-Suffix)
V_OS TRIM
V_OS TRIM 1
–IN 2
OP07
V+
OUT
+IN 3
NC
4V– (CASE)
NC = NO CONNECT
V+
7
NOTE:
R2A AND R2B ARE
ELECTRONICALLY
ADJUSTED ON CHIP
AT FACTORY.
R2A _(OPTIONAL
R2B
NULL)
C1
R1A ¹
8
R1B
Q9
Q10
NON-
INVERTING
INPUT
INVERTING
INPUT
Q7
Q5
Q3 Q6
3 R3
2 R4
Q1
Q21 Q23
Q22 Q24
Q8
Q11 Q12
Q4
Q27 C3
C2
Q17
R5
Q26
Q25
Q2
Q14
4
Q13
V–
R7
Q19
R9 _OUTPUT
6
Q16
R10
Q20
Q15
Q18
R6 R8
REV. C
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use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices.
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© Analog Devices, Inc., 2002