* This specification are subject to be changed without notice.

EM19110

10-BIT 5 MSPS A/D CONVERTER

2

5.26.1997

FUNCTIONAL BLOCK DIAGRAM

Error

correction

Fine encoder

Coarse encoder

Fine encoder

Fine

Comparators with

S/ H (6bit)

Coarse

Comparators with

S/ H (4bit)

Fine

Comparators with

S/ H (6bit)

Ladder resistors

4

3

6

5

8

7

10

9

12

11

2

1

15

13

14

16

17

18

19

20

21

22

23

24

Clock center

/OE

D0

D1

D2

D3

D4

D5

D6

D7

D8

D9

CLK

DVDD

VRTS

VRT

VR3

VR2

AVDD

VIN

AVSS

VRBS

VRB

VR1

DVSS

data

latches

and

OE

Output enable

D0

Data output bit 0 (LSB)

D1

Data output bit 1

D2

Data output bit 2

D3

Data output bit 3

D4

Data output bit 4

D5

Data output bit 5

D6

Data output bit 6

D7

Data output bit 7

D8

Data output bit 8

D9

Data output bit 9 (MSB)

CLK

Clock input

DVDD

Digital power supply

VRTS

Top internal reference voltage

VRT

Top reference voltaget

VR3

Tap-3 reference voltage

VR2

Tap-2 reference voltage

AVDD

Analog power supply

VIN

Analog input voltage

AVSS

Analog ground

VR-1

Tap-1 reference voltage

VRBS

Bottom internal reference voltage

VRB

Bottom reference voltage

DVSS

Digital ground

Symbol

Function

PIN DESCRIPTIONS