1

Semiconductor

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Copyright

CA3028A

Differential/Cascode Amplifier for

Commercial and Industrial Equipment

from DC to 120MHz

The CA3028A is a differential/cascode amplifier designed for

use in communications and industrial equipment operating

at frequencies from DC to 120MHz.

Pinouts

CA3028A

(PDIP, SOIC)

TOP VIEW

CA3028A

(METAL CAN)

TOP VIEW

Features

• Controlled for Input Offset Voltage, Input Offset

Current and Input Bias Current

• Balanced Differential Amplifier Configuration with Con-

trolled Constant Current Source

• Single-Ended and Dual-Ended Operation

Applications

• RF and IF Amplifiers (Differential or Cascode)

• DC, Audio and Sense Amplifiers

• Converter in the Commercial FM Band

• Oscillator

• Mixer

• Limiter

• Related Literature

- Application Note AN5337 “Application of the CA3028

Integrated Circuit Amplifier in the HF and VHF Ranges.”

This note covers characteristics of different operating

modes, noise performance, mixer, limiter, and amplifier

design considerations

Schematic Diagram

(Terminal Numbers Apply to All Packages)

Part Number Information

PART NUMBER

(BRAND)

TEMP.

PACKAGE

PKG.

NO.

CA3028A

-55 to 125

8 Pin Metal Can

T8.C

CA3028AE

-55 to 125

8 Ld PDIP

E8.3

CA3028AM96

(3028A)

-55 to 125

8 Ld SOIC Tape

and Reel

M8.15

1

2

3

4

8

7

6

5

2

4

6

1

3

7

5

8

3

4

5

8

6

1

7

2

2.8k

Ω

500

Ω

SUBSTRATE

5k

Ω

AND CASE

January 1999

File Number

382.5

[ /Title

(CA30

28A)

/Sub-

ject

(Dif-

feren-

tial/Ca

scode

Ampli-

fier for

Com-

mer-

cial

and

Indus-

trial

Equip-

ment

from

DC to

120M

Hz)

/Autho

r ()

/Key-

words

(Har-

ris

Semi-

OBSOLETE

PRODUCT

NO RECOMMENDED

REPLA

CEMENT

Call

Central

Applications

1-800-442-7747

or email:

centapp@harris.com