L290

TACHOMETER CONVERTER

DESCRIPTION

The L290, a monolithic LSI circuit in 16-lead inline

plastic package, is intended for user with the L291

and L292 which together from a complete 3-chip

DC motor positioning system for applications

such as carriage/daisy-wheel position control in

typewriters.

The L290/1/2 system can be directly controlled by

a microprocessor. The L290 integrates the follow-

ing functions:

- tacho voltage generator (F/V converter)

- reference voltage generator

- position pulse generator

March 1993

Symbol

Parameter

Value

Unit

Supply Voltage

± 15

V

Input Signals

± 7V

°C)

1

W

Storage and Junction Temperature

- 40 to + 150

°C

ABSOLUTE MAXIMUM RATING

SYSTEM BLOCK DIAGRAM

DIP-16 Plastic

(0.25)

ORDER CODE : L290B

1/8