Device

Operating

Temperature Range

Package

LM308A

SEMICONDUCTOR

TECHNICAL DATA

SUPER GAIN

OPERATIONAL AMPLIFIER

ORDERING INFORMATION

LM308AN

LM308AD

TA = 0° to +70°C

Plastic DIP

SO–8

Order this document by LM308A/D

Compen A

Compen B

Inputs

Output

VCC

NC

VEE

(Top View)

D SUFFIX

PLASTIC PACKAGE

CASE 751

(SO–8)

N SUFFIX

PLASTIC PACKAGE

CASE 626

1

2

3

4

8

7

6

5

8

1

8

1

PIN CONNECTIONS

+

–

1

MOTOROLA ANALOG IC DEVICE DATA

Precision Operational

Amplifier

The LM308A operational amplifier provides high input impedance, low

input offset and temperature drift, and low noise. These characteristics are

made possible by use of a special Super Beta processing technology. This

amplifier is particularly useful for applications where high accuracy and low

drift performance are essential. In addition high speed performance may be

improved by employing feedforward compensation techniques to maximize

slew rate without compromising other performance criteria.

The LM308A offers extremely low input offset voltage and drift

specifications allowing usage in even the most critical applications without

external offset nulling.

Performance

R2

Frequency Compensation

Standard Compensation

Modified Compensation

R2

R1

R3

Compen A

Output

Compen B

Inverting

Input

Noninverting

Input

Cf ≥ 30

1

1 +

R2

R1

Cf

Standard Feedforward

Compensation

Feedforward Compensations for

Decoupling Load Capacitance

Input

10 k

5.0 pF

10

k

Output

Compen B

3.0 k

10 pF

Compen A

500 pF

Input

Output

500

10 pF

C2*

Compen B

10 pF

500 pF

3.0 k

CL

75 pF to

0.01

µF

*C2 >

5 x 105

pF

R1

R3

Output

Compen B

Inverting

Input

Noninverting

Input

100 pF

R2

RS > 10 k

100 k

0.01

µF

Compen A

+

+

+

+

© Motorola, Inc. 1996

Rev 0