LTC1850 View Datasheet(PDF) - Linear Technology

Part Name

Description

MFG CO.

LTC1850

8-Channel, 10-Bit/12-Bit, 1.25Msps Sampling ADCs

Linear Technology 

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LTC1850/LTC1851

PI FU CTIO S

PIN

1 to 8

9

10

11

12

13

14

15

16

17

18

19

20

21

21

22

22

23

23

24 to 30

24 to 32

31 to 32

33

34

35

36

37

38

39 to 41

42

43

44

45

46

47

48

NAME

CH0 to CH7

COM

REFOUT

REFIN

REFCOMP

GND

VDD

VDD

GND

DIFFOUT/S6

A2OUT/S5

A1OUT/S4

A0OUT/S3

D9/S2 (LTC1850)

D11/S2 (LTC1851)

D8/S1 (LTC1850)

D10/S1 (LTC1851)

D7/S0 (LTC1850)

D9/S0 (LTC1851)

D6 to D0 (LTC1850)

D8 to D0 (LTC1851)

NC (LTC1850)

BUSY

OGND

OVDD

M0

PGA

UNI/BIP

A0 to A2

DIFF

WR

RD

CONVST

CS

SHDN

M1

DESCRIPTION

Analog Inputs

Analog Input Common Pin

2.5V Reference Output

Reference Buffer Input

Reference Buffer Output

Ground, Substrate Ground

Supply

Supply

Ground

Single-Ended/Differential Output

MUX Address Output

MUX Address Output

MUX Address Output

Data Output

Data Output

Data Output

Data Output

Data Output

Data Output

Data Outputs

Data Outputs

Converter Busy Output

Output Ground

Output Supply

Mode Select Pin 0

Gain Select Input

Unipolar/Bipolar Input

MUX Address Inputs

Single-Ended/Differential Input

Write Input, Active Low

Read Input, Active Low

Conversion Start Input, Active Low

Chip Select Input, Active Low

Shutdown Input, Active Low

Mode Select Pin 1

MIN

0

0

0

4.75

4.75

OGND

OGND

OGND

OGND

OGND

OGND

OGND

OGND

OGND

OGND

OGND

OGND

NOMINAL (V)

TYP

2.5

2.5

4.096

0

5

5

0

MAX

VDD

VDD

VDD

5.25

5.25

OVDD

OVDD

OVDD

OVDD

OVDD

OVDD

OVDD

OVDD

OVDD

OVDD

OVDD

OVDD

ABSOLUTE MAXIMUM (V)

MIN

MAX

– 0.3

VDD + 0.3

– 0.3

VDD + 0.3

– 0.3

VDD + 0.3

– 0.3

VDD + 0.3

– 0.3

VDD + 0.3

– 0.3

VDD + 0.3

– 0.3

6

– 0.3

6

– 0.3

VDD + 0.3

– 0.3

VDD + 0.3

– 0.3

VDD + 0.3

– 0.3

VDD + 0.3

– 0.3

VDD + 0.3

– 0.3

VDD + 0.3

– 0.3

VDD + 0.3

– 0.3

VDD + 0.3

– 0.3

VDD + 0.3

– 0.3

VDD + 0.3

– 0.3

VDD + 0.3

– 0.3

VDD + 0.3

– 0.3

VDD + 0.3

OGND

0

2.7

5

0

0

0

0

0

0

0

0

0

0

0

OVDD

5.25

VDD

VDD

VDD

VDD

VDD

VDD

VDD

VDD

VDD

VDD

VDD

– 0.3

VDD + 0.3

– 0.3

VDD + 0.3

– 0.3

6

– 0.3

10

– 0.3

10

– 0.3

10

– 0.3

10

– 0.3

10

– 0.3

10

– 0.3

10

– 0.3

10

– 0.3

10

– 0.3

10

– 0.3

10

18501f

12

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