AD7732BRU Analog Devices Inc, AD7732BRU Datasheet - Page 2

• Manufacturer Part Number: AD7732BRU
• Description: Analog/Digital Converter IC Number Of Bits:24
• Manufacturer: Analog Devices Inc

Specifications of AD7732BRU

• Interface Type: Serial
• Supply Voltage Max.: 5V
• Package/case: 24-TSSOP
• Leaded Process Compatible: No
• A/d, D/a Features: DSP, MicroWire, QSPI, SPI
• Adc Resolution: 24-Bit
• Rohs Status: RoHS non-compliant
• Number Of Bits: 24
• Sampling Rate (per Second): 15.4k
• Data Interface: DSP, MICROWIRE™, QSPI™, Serial, SPI™
• Number Of Converters: 1
• Power Dissipation (max): 100mW
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP (0.173", 4.40mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With: EVAL-AD7732EBZ - BOARD EVAL FOR AD7732
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

AD7732
TABLE OF CONTENTS
AD7732—Specifications.................................................................. 3
Timing Specifications....................................................................... 6
Absolute Maximum Ratings............................................................ 8
Typical Performance Characteristics ............................................. 9
Output Noise and Resolution Specification................................ 10
Pin Configurations and Functional Descriptions ...................... 12
Register Description....................................................................... 14
REVISION HISTORY
Revision 0: Initial Version
Chopping Enabled...................................................................... 10
Chopping Disabled..................................................................... 11
Register Access............................................................................ 15
Communications Register......................................................... 15
I/O Port Register......................................................................... 16
Revision Register ........................................................................ 16
Test Register ................................................................................ 16
ADC Status Register................................................................... 17
Checksum Register..................................................................... 17
ADC Zero-Scale Calibration Register ..................................... 17
ADC Full-Scale Register............................................................ 17
Channel Data Registers ............................................................. 17
Channel Zero-Scale Calibration Registers .............................. 18
Channel Full-Scale Calibration Registers................................ 18
Channel Status Registers ........................................................... 18
Channel Setup Registers ............................................................ 19
Channel Conversion Time Registers ....................................... 19
Rev. 0 | Page 2 of 32
Digital Interface Description ........................................................ 22
Circuit Description......................................................................... 26
Outline Dimensions ....................................................................... 32
Mode Register ............................................................................. 20
Hardware ..................................................................................... 22
Reset ............................................................................................. 23
Access the AD7732 Registers.................................................... 23
Single Conversion and Reading Data ...................................... 23
Dump Mode................................................................................ 24
Continuous Conversion Mode ................................................. 24
Continuous Read (Continuous Conversion) Mode .............. 25
Analog Front End....................................................................... 26
Analog Input’s Extended Voltage Range ................................. 27
Chopping ..................................................................................... 27
Multiplexer, Conversion, and Data Output Timing.............. 28
Sigma-Delta ADC....................................................................... 28
Frequency Response .................................................................. 29
Voltage Reference Inputs........................................................... 29
Reference Detect......................................................................... 29
I/O Port........................................................................................ 30
Calibration................................................................................... 30
ADC Zero-Scale Self-Calibration ............................................ 30
Per Channel System Calibration .............................................. 30
High Common-Mode Voltage Application............................. 31