.

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

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.

N

DIP14

(Plastic Package)

D

SO14

(Plastic Micropackage)

4

5

6

7

9

10

11

13

1

2

3

14

12

Ou tpu t 1

In ve rt i n g i n p u t 1

Non -in ve r t ing i npu t 1

N on- inv e r t ing i n p u t 2

I n v e r ti ng i nput 2

O u t put 2

Ou tp u t 4

I n v e r ti n g i npu t 4

N o n -in v e r t ing i np ut 4

V

CC

N o n -in v e r t ing i np ut 3

I n ve r tin g i np ut 3

V

CC

+

8

Ou tput 3

-

PIN CONNECTIONS (top view)

ORDER CODES

Part Num-

ber

Temperature

Range

Package

ND

LM148

–55

••

LM248

–40

••

LM348

0

••

Example : LM348D

FOUR UA741

QUAD BIPOLAR OPERATIONAL AMPLIFIERS

LM148

LM248 - LM348

November 1997

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