© Semiconductor Components Industries, LLC, 2005

March, 2005 − Rev. XXX

1

Publication Order Number:

LM308A/D

LM308A

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

1

1 +

R2

R1

Standard Feedforward

Compensation

Feedforward Compensations for

Decoupling Load Capacitance

Input

10k

5.0pF

10

k

Output

CompenB

3.0k

10pF

CompenA

500pF

Input

500

10pF

C2*

Compen B

10pF

500pF

3.0k

75pF

to

0.01

µF

*C2 >

pF

R1

R3

Compen B

Inverting

Input

Noninverting

Input

100pF

R2

100k

0.01

µF

CompenA

+

+

+

+

Output

Device

Package

Shipping

ORDERING INFORMATION

LM308AN

PDIP−8

50 Units/Rail

LM308AD

SO−8

http://onsemi.com

98 Units/Rail

Compen A

Compen B

Inputs

Output

NC

(Top View)

1

2

3

4

8

7

6

5

PIN CONNECTIONS

+

−

PDIP−8

N SUFFIX

CASE 626

1

8

SO−8

D SUFFIX

CASE 751

1

8

MARKING

DIAGRAMS

ALYWA

LM308

1

8

AWL

LM308AN

1

8

YYWW

A

= Assembly Location

WL, L = Wafer Lot

YY, Y = Year

WW, W = Work Week

LM308ADR2

SO−8

2500 Tape & Reel