Next Generation OP07 Ultralow
Offset Voltage Operational Amplifier
OP77
FEATURES
Outstanding gain linearity
Ultrahigh gain, 5000 V/mV min
Low V
OS
over temperature, 55 μV max
Excellent TCV
OS
, 0.3 μV/°C max
High PSRR, 3 μV/V max
Low power consumption, 60 mW max
Fits OP07, 725,108A/308A, 741 sockets
Available in die form
PIN CONNECTIONS
V
OS
TRIM
1
–IN
2
+IN
3
V–
4
OP77
8
7
6
V
OS
TRIM
V+
OUT
00320-001
TOP VIEW
5
NC
(Not to Scale)
NC = NO CONNECT
Figure 1. 8-Pin Hermetic
DIP_Q-8 (Z Suffix)
V
OS
TRIM
V
OS
TRIM
1
8
V+
7
OP77
–IN
2
6
OUT
3
5
4
+IN
NC
4V– (CASE)
00320-002
TOP VIEW
(Not to Scale)
NC = NO CONNECT
Figure 2. TO-99
(J Suffix)
GENERAL DESCRIPTION
The OP77 significantly advances the state-of-the-art in
precision op amps. The outstanding gain of 10,000,000 or more
for the OP77 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 of power consumption, are
significant improvements over previous designs. These
characteristics, plus the exceptional TCV
OS
of 0.3 μV/°C
maximum and the low V
OS
of 25 μV maximum, eliminates the
need for V
OS
adjustment and increases system accuracy over
temperature.
A PSRR of 3 μV/V (110 dB) and CMRR of 1.0 μV/V maximum
virtually eliminate errors caused by power supply drifts and
common-mode signals. This combination of outstanding
characteristics makes the OP77 ideally suited for high resolution
instrumentation and other tight error budget systems.
Rev. E
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