AD7790 Analog Devices, AD7790 Datasheet - Page 2

• Manufacturer Part Number: AD7790
• Description: 16-Bit, Single-Channel, Ultra Low Power, Sigma Delta A/D Converter
• Manufacturer: Analog Devices

Specifications of AD7790

• Resolution (bits): 16bit
• # Chan: 1
• Sample Rate: n/a
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: (2Vref/PGA Gain) p-p
• Adc Architecture: Sigma-Delta
• Pkg Type: SOP

AD7790
TABLE OF CONTENTS
AD7790—Specifications.................................................................. 3
Timing Characteristics..................................................................... 5
Absolute Maximum Ratings............................................................ 7
Pin Configuration and Function Descriptions............................. 8
Typical Performance Characteristics ............................................. 9
On-Chip Registers .......................................................................... 10
REVISION HISTORY
Revision 0: Initial Version
Communications Register
(RS1, RS0 = 0, 0) ......................................................................... 10
Status Register
(RS1, RS0 = 0, 0; Power-on/Reset = 0x88)............................... 11
Mode Register
(RS1, RS0 = 0, 1; Power-on/Reset = 0x02)............................... 11
Filter Register
(RS1, RS0 = 1, 0; Power-on/Reset = 0x04)............................... 12
Data Register
(RS1, RS0 = 1, 1; Power-on/Reset = 0x0000) .......................... 12
Rev. 0 | Page 2 of 20
ADC Circuit Information.............................................................. 13
Circuit Description......................................................................... 17
Outline Dimensions ....................................................................... 19
Overview ..................................................................................... 13
Noise Performance ..................................................................... 13
Reduced Current Modes ........................................................... 13
Digital Interface .......................................................................... 14
Analog Input Channel ............................................................... 17
Programmable Gain Amplifier................................................. 17
Bipolar Configuration................................................................ 17
Data Output Coding .................................................................. 17
Reference Input........................................................................... 17
V
Grounding and Layout .............................................................. 18
DD
Single Conversion Mode ....................................................... 15
Continuous Conversion Mode............................................. 15
Continuous Read Mode ........................................................ 16
Monitor ................................................................................ 18