LM148
LM248
LM348
FOUR UA741
QUAD BIPOLAR OPERATIONAL AMPLIFIERS
■ LOW SUPPLY CURRENT: 0.53mA/AMPLI-
FIER
■ 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
N
DIP14
(Plastic Package)
■ HIGH DEGREE OF ISOLATION BETWEEN
AMPLIFIERS: 120dB
■ OVERLOAD PROTECTION FOR INPUTS
AND OUTPUTS
DESCRIPTION
D
SO14
(Plastic Micropackage)
The LM148 consists of four independent, high
gain internally compensated, low power opera-
tional amplifiers which have been designed to pro-
vide functional characteristics identical to those of
the familiar UA741 operational amplifier. In addi-
tion the total supply current for all four amplifiers is
compatible 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
independently biasing each amplifier and using
layout techniques qhich minimize thermal cou-
pling.
PIN CONNECTIONS (top view)
Output 1
Inve rting Input 1
1
2
3
4
5
6
7
14 Output 4
13 Inve rting Input 4
-
-
The LM148 can be used anywhere multiple
UA741 type amplifiers are being used and in appli-
cations where amplifier matching or high packaing
density is required.
+
+
Non-inve rting Input 1
12 Non-inve rting Input 4
-
+
V
CC
11
V
CC
Non-inverting Input 2
Inve rting Input 2
Output 2
10 Non-inve rting Input 3
+
-
+
-
9
8
Inve rting Input 3
Output 3
ORDER CODE
Package
Part
Number
Temperature
Range
N
D
LM148
-55°C, +125°C
-40°C, +105°C
0°C, +70°C
•
•
•
•
•
•
LM248
LM348
Example : LM348D
N = Dual in Line Package (DIP)
D = Small Outline Package (SO) - also available in Tape & Reel (DT)
March 2002
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