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ADC0833BCN

Serial I/O 8-Bit A/D Converters

Micro Linear Corporation 

ML2280, ML2283

13

DI*

2

CS

R

START

R

R

R

5-BIT SHIFT-REGISTER

ODD/

SGL/DIF SIGN SELECT 1

R

D

SELECT 0 C

16

CLK

VCC

3

CH0*

4

CH1

MUX

ADDRESS

+Σ

–

5

CH2*

6

CH3*

ANALOG

+

MUX

(EQUIVALENT)

–

C

CS

Tx

TIME

DELAY

DSTART 2

CS

START

CS

SARS*

11

CS

CR

QD

DQ

CR

CS

D Q DEOC

DSTART 1

CR

CS

CS

9

VREF/2

14

VCC

V+* 1

DGND*

8

AGND*

VCC

COMP

C

R

7V SHUNT

REGULATOR

TO INTERNAL R

CIRCUITRY

INPUT

13

VCC

16

TO

17

INTERNAL

18

CIRCUITS

LADDER

AND

DECODER

INPUT PROTECTION—ALL LOGIC INPUTS

SAR

LOGIC

AND

LATCH

COMP

B7

B6

EOC CS

RC

C

RQ

10

DO

D

B5

B4

9-BIT

SHIFT

B3

REGISTER

B2

B1

B0

EOC

LSB FIRST

* SOME OF THESE FUNCTIONS/PINS ARE NOT AVAILABLE WITH ML2280.

MSB FIRST

PARALLEL XFR

TO SHIFT REGISTER

Figure 6. ML2288 Functional Block Diagram

9

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