LM148
LM248 - LM348
FOUR UA741
QUAD BIPOLAR OPERATIONAL AMPLIFIERS
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LOW SUPPLY CURRENT : 0.53mA/AMPLIFIER
CLASS AB OUTPUT STAGE : NO CROSS-
OVER DISTORTION
PIN COMPATIBLE WITH LM124
LOW INPUT OFFSET VOLTAGE : 1mV
LOW INPUT OFFSET CURRENT : 2nA
LOW INPUT BIAS CURRENT : 30nA
GAIN BANDWIDTH PRODUCT : 1.3MHz
HIGH DEGREE OF ISOLATION BETWEEN
AMPLIFIERS : 120dB
OVERLOAD PROTECTION FOR INPUTS AND
OUTPUTS
N
DIP14
(Plastic Package)
D
SO14
(Plastic Micropackage)
ORDER CODES
Part Num-
ber
LM148
LM248
LM348
Example :
LM348D
Temperature
Range
–55
o
C, +125
o
C
–40 C, +105 C
0 C, +70 C
o
o
o
o
Package
N
•
•
•
D
•
•
•
PIN CONNECTIONS
(top view)
DESCRIPTION
The LM148 consists of four independent,high gain
internally compensated, low power operational
amplifiers which have been designed to provide
functionalcharacteristics identical to those of the fa-
miliar UA741 operational amplifier. In addition the
total supply current for all four amplifiers is compa-
rable to the supply current of a single UA741 type
op amp. Other features include input offset current
and input bias current which are much less than
those of a standard UA741. Also, excellent isolation
between amplifiers has been achieved by inde-
pendently biasing each amplifier and using layout
techniques which minimize thermal coupling.
The LM148 can be used anywhere multiple UA741
type amplifiers are being used and in applications
where amplifier matching or high packing density is
required.
November 1997
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+
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