.LOWSUPPLYCURRENT :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
.OVERLOADPROTECTION FOR INPUTS AND
OUTPUTS
DESCRIPTION
The LM148 consists of four independent,high gain
internally compensated, low power operational
amplifiers which have been designed to provide
functionalcharacteristics identicalto thoseof the fa-
miliar UA741 operational amplifier. In addition the
total supply current for all fouramplifiers is compa-
rable to the supply current of a single UA741 type
op amp. Other featuresinclude input offsetcurrent
and input bias current which are much less than
thoseof a standardUA741.Also, excellentisolation
between amplifiers has been achieved by inde-
pendentlybiasing each amplifier and using layout
techniqueswhich 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 densityis
required.
N
DIP14
(Plastic Package)
D
SO14
(Plastic Micropackage)
4
5
6
7
9
10
11
13
1
2
3
14
12
Output 1
Inverting input 1
Non-inverting input 1
Non-inverting input 2
Inverting input 2
Out put 2
Output 4
Inverting input 4
N on-inverting input 4
V
CC
N on-inverting input 3
Inverting input 3
V
CC
+
8
Output 3
-
PIN CONNECTIONS (top view)
ORDER CODES
Part Num-
ber
Temperature
Range
Package
ND
LM148 –55
o
C, +125
o
C ••
LM248 –40
o
C, +105
o
C ••
LM348 0
o
C, +70
o
C ••
Example : LM348D
FOUR UA741
QUAD BIPOLAR OPERATIONAL AMPLIFIERS
LM148
LM248 - LM348
November 1997
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