Quad Matched
741-Type Operational Amplifiers
a
OP11
FEATURES
PIN CONFIGURATIONS
Guaranteed VOS: 500 ꢀV Max
Guaranteed Matched CMRR: 94 dB Min
Guaranteed Matched VOS: 750 ꢀV Max
LM148/LM348 Direct Replacement
Low Noise
Silicon-Nitride Passivation
Internal Frequency Compensation
Low Crossover Distortion
Continuous Short-Circuit Protection
Low Input Bias Current
14-Lead Epoxy DIP
(P Suffix)
OUT A
–IN A
+IN A
V+
1
2
3
4
5
6
7
14 OUT D
13 –IN D
12 +IN D
11 V–
+IN B
–IN B
OUT B
10 +IN C
9
8
–IN C
OUT C
GENERAL DESCRIPTION
The OP11 provides four matched 741-type operational amplifiers
in a single 14-lead DIP package. The OP11 is pin compatible
with the LM148, LM348, RM4156, RM4158, and HA4741
amplifiers. The amplifier is matched for common-mode rejection
ratio and offset voltage which is very important in designing
instrumentation amplifiers. In addition, the amplifier is designed
to have equal positive-going and negative-going slew rates. This
is an important consideration for good audio system performance.
14-Lead Hermetic DIP
(Y Suffix)
OUT A
–IN A
+IN A
V+
1
2
3
4
5
6
7
14 OUT D
13 –IN D
12 +IN D
11 V–
+IN B
–IN B
OUT B
10 +IN C
The OP11 is ideal for use in designs requiring minimum space
and cost while maintaining performance.
9
8
–IN C
OUT C
V+
–IN
+IN
OUTPUT
V–
Figure 1. Simplified Schematic
REV. A
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© Analog Devices, Inc., 2002