AD7699 Analog Devices, AD7699 Datasheet - Page 2

• Manufacturer Part Number: AD7699
• Description: 16-Bit, 8-Channel, 500 kSPS PulSAR ADC
• Manufacturer: Analog Devices

Specifications of AD7699

• Resolution (bits): 16bit
• # Chan: 8
• Sample Rate: 500kSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni,SE-Bip,SE-Uni
• Ain Range: (Vref) p-p,4 V p-p,Bip (Vref) x 0.5,Uni (Vref)
• Adc Architecture: SAR
• Pkg Type: CSP

AD7699
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Timing Specifications....................................................................... 5
Absolute Maximum Ratings............................................................ 6
Pin Configuration and Function Descriptions............................. 7
Typical Performance Characteristics ............................................. 8
Terminology .................................................................................... 12
Theory of Operation ...................................................................... 13
REVISION HISTORY
9/11—Rev. 0 to Rev. A
Changed Internal Reference/Temperature Sensor Section to
Internal Reference Section ............................................................ 18
Changes to Internal Reference Section, External Reference and
Internal Buffer Section, and External Reference Section.......... 18
Changes to Table 8.......................................................................... 21
10/08—Revision 0: Initial Version
ESD Caution.................................................................................. 6
Overview...................................................................................... 13
Converter Operation.................................................................. 13
Transfer Functions...................................................................... 14
Typical Connection Diagrams.................................................. 15
Analog Inputs.............................................................................. 16
Driver Amplifier Choice............................................................ 18
Rev. A | Page 2 of 28
Digital Interface .............................................................................. 20
Application Hints ........................................................................... 26
Outline Dimensions ....................................................................... 27
Voltage Reference Output/Input .............................................. 18
Power Supply............................................................................... 19
Supplying the ADC from the Reference.................................. 19
Reading/Writing During Conversion, Fast Hosts.................. 20
Reading/Writing During Acquisition, Any Speed Hosts...... 20
Reading/Writing Spanning Conversion, Any Speed Host.... 20
Configuration Register, CFG .................................................... 20
General Timing Without a Busy Indicator ............................. 22
Read/Write Spanning Conversion Without a Busy Indicator
....................................................................................................... 23
General Timing With a Busy Indicator ................................... 24
Read/Write Spanning Conversion with a Busy Indicator..... 25
Layout .......................................................................................... 26
Evaluating AD7699 Performance............................................. 26
Ordering Guide .......................................................................... 27
Data Sheet