AD7912 Analog Devices, AD7912 Datasheet - Page 2
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AD7912
Manufacturer Part Number
AD7912
Description
2-Channel, 2.35 V to 5.25 V, 1 MSPS, 10-Bit A/D Converter
Manufacturer
Analog Devices
Datasheet
1.AD7912.pdf
(32 pages)
Specifications of AD7912
Resolution (bits)
10bit
# Chan
2
Sample Rate
1MSPS
Interface
Ser,SPI
Analog Input Type
SE-Uni
Ain Range
Uni Vdd
Adc Architecture
SAR
Pkg Type
SOP,SOT
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Company
Part Number
Manufacturer
Quantity
Price
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AD7912/AD7922
TABLE OF CONTENTS
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 9
Pin Configurations and Function Descriptions ......................... 10
Terminology .................................................................................... 11
Typical Performance Characteristics ........................................... 13
Circuit Information ........................................................................ 15
REVISION HISTORY
Revision 0: Initial Version
AD7912 Specifications................................................................. 3
AD7922 Specifications................................................................. 5
Timing Specifications .................................................................. 7
Timing Diagrams.......................................................................... 7
Timing Examples.......................................................................... 8
ESD Caution.................................................................................. 9
Converter Operation.................................................................. 15
ADC Transfer Function............................................................. 15
Typical Connection Diagram ................................................... 16
Analog Input ............................................................................... 16
Digital Inputs .............................................................................. 17
Rev. 0 | Page 2 of 32
Modes of Operation ....................................................................... 18
Power vs. Throughput Rate ........................................................... 24
Serial Interface ................................................................................ 25
Application Hints ........................................................................... 28
Evaluating AD7912/AD7922 Performance................................. 29
Outline Dimensions ....................................................................... 30
DIN Input.................................................................................... 17
DOUT Output ............................................................................ 17
Normal Mode.............................................................................. 18
Power-Down Mode.................................................................... 18
Power-Up Time .......................................................................... 20
Daisy-Chain Mode ..................................................................... 20
Daisy-Chain Example ................................................................ 22
Microprocessor Interfacing....................................................... 26
Grounding and Layout .............................................................. 28
Ordering Guide .......................................................................... 30