HI-574A(1997) View Datasheet(PDF) - Intersil

Part Name

Description

MFG CO.

HI-574A
(Rev.:1997)

Complete, 12-Bit A/D Converters with Microprocessor Interface

Intersil 

HI-574A, HI-674A, HI-774

Functional Block Diagram

MSB

BIT OUTPUTS

LSB

12/8

CS

AO

R/C

CE

VREF IN

VREF OUT

CONTROL

LOGIC

NIBBLE A (NOTE)

NIBBLE B (NOTE)

NIBBLE C (NOTE)

THREE-STATE BUFFERS AND CONTROL

POWER-UP RESET

12 BITS

OSCILLATOR

CLK

DIGITAL CHIP

ANALOG CHIP

10K

+10V

+

REF

-

SAR

STROBE

12 BITS

DAC

5K

5K 10K

5K

COMP

-

2.5K

VLOGIC

DIGITAL

COMMON

STS

VCC

VEE

ANALOG

COMMON

NOTE: “Nibble” is a 4-bit digital word.

BIP 20V 10V

OFF INPUT INPUT

6-954

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