8

12/19/97

SPT7730

PIN ASSIGNMENTS

PIN FUNCTIONS

Name

Function

Analog In

Analog Signal Input

Start Convert

Start Convert. A high-to-low transition on

this input begins the conversion cycle and

enables serial data output.

Clock

Clock that drives A/D conversion cycle and

the synchronous serial data output

Data Out

Serial Data. Tri-state serial data output for

the A/D result driven by the CLOCK input

External voltage reference for top of

reference ladder

External voltage reference for bottom of

reference ladder

Analog and Digital +3 V to +5 V

Power Supply Input

GND

Analog and Digital Ground

Data Out

External VREF+

Analog In

External VREF-

Ground

VDD

Clock

Start Convert

1

2

3

4

8

7

6

5

ORDERING INFORMATION

PART NUMBER

TEMPERATURE RANGE

PACKAGE

SPT7730SCS

0 to +70

°C

8L SOIC

SPT7730SCU*

+25

°C

Die*

*Please see the die specification for guaranteed electrical performance.