3

FN6079.1

November 12, 2004

Pin Descriptions

PIN NO.

PIN NAME

DESCRIPTION

1-12

D11 (MSB) Through

D0 (LSB)

Digital Data Bit 11, (Most Significant Bit) through Digital Data Bit 0, (Least Significant Bit).

15

SLEEP

Control Pin for Power-Down mode. Sleep Mode is active high; Connect to ground for Normal Mode. Sleep

pin has internal 20

µA active pulldown current.

16

REFLO

reference.

17

REFIO

Reference voltage input if internal reference is disabled. Reference voltage output if internal reference is

enabled. Use 0.

1µF cap to ground when internal reference is enabled.

18

FSADJ

Full Scale Current Adjust. Use a resistor to ground to adjust full scale output current. Full Scale Output

19, 25

NC

No Connect. These should be grounded, but can be left disconnected.

21

IOUTB

The complementary current output of the device. Full scale output current is achieved when all input bits

are set to binary 0.

22

IOUTA

Current output of the device. Full scale output current is achieved when all input bits are set to binary 1.

23

COMP

Connect 0.1

µF capacitor to ACOM.

24

Analog Supply (+3.0V to +3.6V).

20

ACOM

Connect to Analog Ground.

26, 13, 14

DCOM

Connect to Digital Ground.

27

Digital Supply (+3.0V to +3.6V).

28

CLK

Clock Input.

ISL5857