SNOSBT2E – MAY 1999 – REVISED MARCH 2013
LM148/LM248/LM348 Quad 741 Op Amps
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FEATURES
741 Op Amp Operating Characteristics
Class AB Output Stage—No Crossover
Distortion
Pin Compatible With the LM124
Overload Protection for Inputs and Outputs
Low Supply Current Drain: 0.6 mA/Amplifier
Low Input Offset Voltage: 1 mV
Low Input Offset Current: 4 nA
Low Input Bias Current 30 nA
High Degree of Isolation Between Amplifiers:
120 dB
Gain Bandwidth Product
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LM148 (Unity Gain): 1.0 MHz
DESCRIPTION
The LM148 series is a true quad 741. It consists of
four independent, high gain, internally compensated,
low power operational amplifiers which have been
designed to provide functional characteristics
identical to those of the familiar 741 operational
amplifier. In addition the total supply current for all
four amplifiers is comparable to the supply current of
a single 741 type op amp. Other features include
input offset currents and input bias current which are
much less than those of a standard 741. Also,
excellent isolation between amplifiers has been
achieved by independently biasing each amplifier and
using layout techniques which minimize thermal
coupling.
The LM148 can be used anywhere multiple 741 or
1558 type amplifiers are being used and in
applications where amplifier matching or high packing
density is required. For lower power refer to LF444.
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Schematic Diagram
* 1 pF in the LM149
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Copyright © 1999–2013, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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