AD7476A Analog Devices, AD7476A Datasheet - Page 2

• Manufacturer Part Number: AD7476A
• Description: 12-Bit, 1 MSPS, Low-Power A/D Converter in SC70 and MSOP Packages
• Manufacturer: Analog Devices

Specifications of AD7476A

• Resolution (bits): 12bit
• # Chan: 1
• Sample Rate: 1MSPS
• Interface: Ser,SPI
• Analog Input Type: SE-Uni
• Ain Range: Uni Vdd
• Adc Architecture: SAR
• Pkg Type: SC70,SOP

AD7476A/AD7477A/AD7478A
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Product Highlights ........................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Absolute Maximum Ratings .......................................................... 10
Pin Configurations and Function Descriptions ......................... 11
Typical Performance Characteristics ........................................... 12
Terminology .................................................................................... 14
Theory of Operation ...................................................................... 15
REVISION HISTORY
1/11—Rev. E to Rev. F
Changes to Features Section............................................................ 1
Changes to Ordering Guide .......................................................... 26
Added Automotive Products Section .......................................... 27
2/09—Rev. D to Rev. E
Changes to Features .......................................................................... 1
Changes to Ordering Guide .......................................................... 26
4/06—Rev. C to Rev. D
Updated Format .................................................................. Universal
Changes to Ordering Guide .......................................................... 26
AD7476A Specifications .............................................................. 3
AD7477A Specifications .............................................................. 5
AD7478A Specifications .............................................................. 6
Timing Specifications .................................................................. 8
ESD Caution ................................................................................ 10
Circuit Information .................................................................... 15
The Converter Operation .......................................................... 15
ADC Transfer Function ............................................................. 15
Rev. F | Page 2 of 28
Typical Connection Diagram ....................................................... 16
Modes of Operation ....................................................................... 18
Power vs. Throughput Rate ........................................................... 20
Serial Interface ................................................................................ 21
Microprocessor Interfacing ........................................................... 23
Application Hints ........................................................................... 25
Outline Dimensions ....................................................................... 26
Analog Input ............................................................................... 16
Digital Inputs .............................................................................. 17
Normal Mode .............................................................................. 18
Power-Down Mode .................................................................... 18
Power-Up Time .......................................................................... 18
AD7478A in a 12 SCLK Cycle Serial Interface ....................... 22
AD7476A/AD7477A/AD7478A to TMS320C541 Interface 23
AD7476A/AD7477A/AD7478A to ADSP-218x Interface .... 23
AD7476A/AD7477A/AD7478A to DSP563xx Interface ...... 24
Grounding and Layout .............................................................. 25
Evaluating the AD7476A/AD7477A Performance ............... 25
Ordering Guide .......................................................................... 26
Automotive Products ................................................................. 27