SNAD01C

8-CHANNEL 8-BIT ADC

======== CONTENTS ========

1.

GENERAL DESCRIPTION ..........................................................................................................................3

2.

FEATURES ...................................................................................................................................................3

3.

APPLICATIONS............................................................................................................................................3

4.

BLOCK DIAGRAM .......................................................................................................................................4

5.

PIN ASSIGNMENTS.....................................................................................................................................4

6.

Functional Descriptions .............................................................................................................................5

6.1.

Interface Format...................................................................................................................................5

6.2.

Channel Setting ...................................................................................................................................7

6.3.

Control Register Setting ......................................................................................................................7

6.4.

ADC Read Timing................................................................................................................................8

6.5.

Timing of Digital Input Reading...........................................................................................................9

6.6.

Power Down & Channel Wake-Up ...................................................................................................10

6.7.

Bandgap reference............................................................................................................................11

6.8.

Input Channel PAD (Channel 0~6)...................................................................................................12

6.9.

Battery Monitoring (Channel 7 only) .................................................................................................13

7.

ELECTRICAL CHARACTERISTICS ........................................................................................................14

8.

APPLICATION CIRCUITS .........................................................................................................................15

9.

EXAMPLE PROGRAMS............................................................................................................................16

9.1.

Program 1: Set Configuration of SNAD01C....................................................................................23

9.2.

Program 2: Read ADC result from Channel 1 ................................................................................23

9.3.

Program 3: Read Digital Input data from Ch4, Ch3, CH2 ..............................................................23

9.4.

Program 4: Power-down SNAD01C and Host, and Wake-up ........................................................23

9.5.

Program 5: Battery Low Detection....................................................................................................24

10. PAD DIAGRAM ..........................................................................................................................................26

Version: 1.5

July 31, 2003

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