AD7789 Analog Devices, AD7789 Datasheet - Page 2

• Manufacturer Part Number: AD7789
• Description: 24-Bit, Single-Channel, Ultra Low Power, Sigma Delta A/D Converter
• Manufacturer: Analog Devices

Specifications of AD7789

• Resolution (bits): 24bit
• # Chan: 1
• Sample Rate: n/a
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: (2Vref) p-p
• Adc Architecture: Sigma-Delta
• Pkg Type: SOP

AD7788/AD7789
TABLE OF CONTENTS
Features .............................................................................................. 1
Interface ............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 8
Pin Configuration and Function Descriptions............................. 9
Typical Performance Characteristics ........................................... 10
On-Chip Registers .......................................................................... 11
REVISION HISTORY
3/06—Rev. A to Rev. B
Changes to Ordering Guide .......................................................... 19
11/04—Rev. 0 to Rev. A
Updated Format..................................................................Universal
Added Footnote 2 to Integral Nonlinearity A Grade................... 4
Changes to Figure 5.......................................................................... 9
Updated Outline Dimensions ....................................................... 19
Changes to Ordering Guide .......................................................... 19
8/03—Revision 0: Initial Version
AD7789 .......................................................................................... 3
AD7788 .......................................................................................... 4
AD7788/AD7789.......................................................................... 5
Timing Characteristics ................................................................ 6
Timing Diagrams.......................................................................... 7
ESD Caution.................................................................................. 8
Rev. B | Page 2 of 20
ADC Circuit Information.............................................................. 14
Circuit Description......................................................................... 17
Outline Dimensions ....................................................................... 19
Communications Register......................................................... 11
Status Register............................................................................. 12
Mode Register ............................................................................. 13
Data Register............................................................................... 13
Noise Performance ..................................................................... 14
Digital Interface.......................................................................... 14
Analog Input Channel ............................................................... 17
Bipolar/Unipolar Configuration .............................................. 17
Data Output Coding .................................................................. 17
Reference Input........................................................................... 17
V
Grounding and Layout .............................................................. 18
Ordering Guide .......................................................................... 19
DD
Monitor ................................................................................ 18