LM148 Просмотр технического описания (PDF) - STMicroelectronics
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LM148 Datasheet PDF : 5 Pages
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LM148
LM248
LM348
FOUR UA741
QUAD BIPOLAR OPERATIONAL AMPLIFIERS
s LOW SUPPLY CURRENT: 0.53mA/AMPLI-
FIER
s CLASS AB OUTPUT STAGE: NO CROSS
OVER DISTORTION
s PIN COMPATIBLE WITH LM124
s LOW INPUT OFFSET VOLTAGE: 1mV
s LOW INPUT OFFSET CURRENT: 2nA
s LOW INPUT BIAS CURRENT: 30nA
s GAIN BANDWIDTH PRODUCT: 1.3MHz
s HIGH DEGREE OF ISOLATION BETWEEN
AMPLIFIERS: 120dB
s OVERLOAD PROTECTION FOR INPUTS
AND OUTPUTS
DESCRIPTION
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.
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.
ORDER CODE
Part
Number
Temperature
Range
LM148
-55°C, +125°C
LM248
-40°C, +105°C
LM348
0°C, +70°C
Example : LM348D
Package
N
D
•
•
•
•
•
•
N = Dual in Line Package (DIP)
D = Small Outline Package (SO) - also available in Tape & Reel (DT)
March 2002
N
DIP14
(Plastic Package)
D
SO14
(Plastic Micropackage)
PIN CONNECTIONS (top view)
Output 1 1
Inverting Input 1 2
-
Non-inverting Input 1 3
+
VCC + 4
Non-inverting Input 2 5 +
Inverting Input 2 6
-
Output 2 7
14 Output 4
- 13 Inverting Input 4
+ 12 Non-inverting Input 4
11 VCC -
+ 10 Non-inverting Input 3
-
9 Inverting Input 3
8 Output 3
1/5
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