LTC1852/LTC1853

22

18523fa

INPUT

CONFIGURATION:

ALL 8 CHANNELS

SINGLE ENDED

TO COM

CH0–CH7:

0V TO 4.096V

BUSY

D11/S2

D10/S1

D9/S0

D8

D7

D6

D5

D4

D3

D2

D1

D0

33

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

M1

M0

SHDN

CS

CONVST

RD

WR

DIFF

A2

A1

A0

UNI/BIP

PGA

48

36

47

46

45

44

43

42

41

40

39

38

37

OGND 34

18523 TA01

GND

GND

1.6384X

REFCOMP

13

16

REFIN

REFOUT

12

11

10

2.5V

4.096V

COM

CH7

CH6

CH5

CH4

CH3

CH2

CH1

CH0

14

9

8

7

6

5

4

3

2

1

15

0.1μF

5V

10μF

1μF

0.1μF

10μF

0.1μF

10μF

5V

5V

5V

CONVERT

CLOCK

OUTPUT

DRIVERS

DATA

LATCHES

REF AMP

8-CHANNEL

MULTIPLEXER

2.5V

REFERENCE

INTERNAL

CLOCK

LTC1853

CONTROL LOGIC

AND

PROGRAMMABLE

SEQUENCER

12-BIT

SAMPLING

ADC

+

–

LTC1853 Hardwired for 8-Channel Single-Ended Scan with Unipolar 0V to 4.096V Operation

TYPICAL APPLICATIONS