Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are

implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

16 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600

© 1995 Maxim Integrated Products

Printed USA

is a registered trademark of Maxim Integrated Products.

Multi-Range (±4V, ±2V, +4V, +2V),

+5V Supply, 12-Bit DAS with 8+4 Bus Interface

_________________________________________________________Functional Diagram

T/H

THREE-STATE, BIDIRECTIONAL

I/O INTERFACE

MUX

4

4

12

8

10k

8

8

8

SUCCESSIVE-

APPROXIMATION

REGISTER

CHARGE REDISTRIBUTION

12-BIT DAC

CLOCK

SIGNAL

CONDITIONING

BLOCK

&

OVERVOLTAGE

TOLERANT

MUX

CONTROL LOGIC

&

LATCHES

REF

REFADJ

+2.5V

REFERENCE

D0–D7

8-BIT DATA BUS

CH7

CH6

CH5

CH4

CH3

CH2

CH1

CH0

CLK

CS

WR

RD

SHDN

INT

AGND

DGND

HBEN

MAX199

1.638

COMP