Absolute Maximum Ratings

Features

s

Single Supply Operation

s

On-Chip Regulation

s

20mA Output Drive

Capability

Package Options

20L SOIC Wide

14L PDIP

20mA Air-Core Tachometer Drive Circuit

1

Gnd

NC

Gnd

Gnd

Gnd

Gnd

Gnd

Gnd

Gnd

1

Gnd

NC

Pwr Gnd

CS289

Description

Block Diagram

1

December, 2001 - Rev. 4

ON Semiconductor

2000 South County Trail, East Greenwich, RI 02818

Tel: (401)885–3600 Fax: (401)885–5786

N. American Technical Support: 800-282-9855

Web Site: www.onsemi.com

The CS289 is specifically designed

for use with air-core meter move-

ments. The IC has charge pump cir-

cuitry for frequency-to-voltage con-

version, a shunt regulator for stable

operation, a function generator, and

sine and cosine amplifiers. The

buffered sine and cosine outputs

will typically sink or source 20mA.

Operating Temperature ............................................................–40°C to +100°C

Junction Temperature..................................................................–40°C to 150°C

Storage Temperature.................................................................–65°C to +150°C

Lead Temperature Soldering

Wave Solder (through hole styles only)...........10 sec. max, 260°C peak

Reflow (SMD styles only)............60 sec. max above 183°C, 230°C peak

Regulator

+–

V

Z

C

Gnd

V

SINE

C

Pwr Gnd

V

COS

S

F/V OUT

V

CC

V

REG

S

Function

Generator

Charge

Pump