SNAD02C Datasheet, PDF (1/27 Pages) SONiX Technology Company – 8-CHANNEL 10-BIT ADC

SNAD02C
8-CHANNEL 10-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 SNAD02C...............................................................................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 SNAD02C AND HOST, AND WAKE-UP ...................................................24
9.5.
PROGRAM 5: BATTERY LOW DETECTION ..............................................................................................24
10.
PAD DIAGRAM...................................................................................................................................26
Version: 1.3
1
July 31, 2003