AD7152 View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
AD7152 Datasheet PDF : 24 Pages
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AD7152/AD7153
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagrams............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Timing Specifications .................................................................. 5
Absolute Maximum Ratings............................................................ 6
ESD Caution.................................................................................. 6
Pin Configurations and Function Descriptions ........................... 7
Typical Performance Characteristics ............................................. 8
Serial Interface ................................................................................ 11
Write Operation.......................................................................... 11
Read Operation........................................................................... 11
AD7152/AD7153 Reset .............................................................. 12
General Call................................................................................. 12
Register Map.................................................................................... 13
Status Register ............................................................................. 14
Data Registers ............................................................................. 15
Offset Calibration Registers ...................................................... 15
Gain Calibration Registers ........................................................ 15
CAP Setup Registers .................................................................. 16
REVISION HISTORY
2/16—Rev. 0 to Rev. A
Change to Address 0x01, Address 0x02 for Channel 1, Address
0x03, Address 0x04 (AD7152 Only) for Channel 2, 16 Bits,
Read-Only, Default Value 0x0000 Section .................................. 15
Updated Outline Dimensions ....................................................... 23
5/08—Revision 0: Initial Version
Data Sheet
Configuration Register .............................................................. 16
CAPDAC POS Register ............................................................. 17
CAPDAC NEG Register ............................................................ 17
Configuration2 Register ............................................................ 17
Circuit Description......................................................................... 18
Capacitance-to-Digital Converter (CDC) .............................. 18
Excitation Source........................................................................ 18
CAPDAC ..................................................................................... 19
Single-Ended Capacitive Input................................................. 19
Differential Capacitive Input .................................................... 20
Parasitic Capacitance to Ground.............................................. 20
Parasitic Resistance to Ground................................................. 20
Parasitic Parallel Resistance ...................................................... 21
Parasitic Serial Resistance ......................................................... 21
Input EMC Protection ............................................................... 21
Power Supply Decoupling and Filtering.................................. 21
Capacitive Gain Calibration ..................................................... 21
Capacitive System Offset Calibration ...................................... 21
Typical Application Diagram.................................................... 22
Outline Dimensions ....................................................................... 23
Ordering Guide .......................................................................... 23
Rev. A | Page 2 of 24
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