Datasheet AD7739 (Analog Devices) - 8

Data Sheet AD7739 ABSOLUTE MAXIMUM RATINGS
TA = 25°C, unless otherwise noted. Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress
Table 3.
rating only; functional operation of the device at these or any
Parameter Rating
other conditions above those indicated in the operational AVDD to AGND, DVDD to DGND −0.3 V to +7 V section of this specification is not implied. Exposure to absolute AGND to DGND −0.3 V to +0.3 V maximum rating conditions for extended periods may affect AVDD to DVDD −5 V to +5 V device reliability. AIN, AINCOM to AGND −0.3 V to AVDD + 0.3 V
ESD CAUTION
REFIN(+), REFIN(−) to AGND −0.3 V to AVDD + 0.3 V P0, P1 Voltage to AGND −0.3 V to AVDD + 0.3 V Digital Input Voltage to DGND −0.3 V to DVDD + 0.3 V Digital Output Voltage to DGND −0.3 V to DVDD + 0.3 V ESD Rating (ESD Association Human 4000 V Body Model, S5.1) Operating Temperature Range −40°C to +105°C Storage Temperature Range −65°C to +150°C Junction Temperature 150°C TSSOP Package θJA Thermal 128°C/W Impedance Lead Temperature, Soldering Vapor Phase (60 sec) 215°C Infrared (15 sec) 260°C Rev. A | Page 7 of 32 Document Outline Features Applications Functional Block Diagram General Description Table of Contents Revision History Specifications Timing Specifications Timing Diagrams Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Output Noise and Resolution Specification Chopping Enabled Chopping Disabled Register Descriptions Register Access Communications Register 8 Bits, Write-Only Register, Address 0x00 I/O Port Register 8 Bits, Read/Write Register, Address 0x01, Default Value 0x30 + Digital Input Value × 0x40 Revision Register 8 Bits, Read-Only Register, Address 0x02, Default Value 0x09 + Chip Revision × 0x10 Test Register 24 Bits, Read/Write Register, Address 0x03 ADC Status Register 8 Bits, Read-Only Register, Address 0x04, Default Value 0x00 Checksum Register 16 Bits, Read/Write Register, Address 0x05 ADC Zero-Scale Calibration Register 24 Bits, Read/Write Register, Address 0x06, Default Value 0x80 0000 ADC Full-Scale Calibration Register 24 Bits, Read/Write Register, Address 0x07, Default Value 0x80 0000 Channel Data Registers 16-Bit/24-Bit, Read-Only Registers, Address 0x08 to Address 0x0F, Default Width 16 Bits, Default Value 0x8000 Channel Zero-Scale Calibration Registers 24 Bits, Read/Write Registers, Address 0x10 to Address 0x17, Default Value 0x80 0000 Channel Full-Scale Calibration Registers 24 Bits, Read/Write Registers, Address 0x18 to Address 0x1F, Default Value 0x20 0000 Channel Status Registers 8 Bits, Read-Only Registers, Address 0x20 to Address 0x27, Default Value 0x20 × Channel Number Channel Setup Registers 8 Bits, Read/Write Registers, Address 0x28 to Address 0x2F, Default Value 0x00 Channel Conversion Time Registers 8 Bits, Read/Write Registers, Address 0x30 to Address 0x37, Default Value 0x91 Mode Register 8 Bits, Read/Write Register, Address 0x38 to Address 0x3F, Default Value 0x00 Digital Interface Description Hardware Reset Access the AD7739 Registers Single Conversion and Reading Data Dump Mode Continuous Conversion Mode Continuous Read (Continuous Conversion) Mode Circuit Description Analog Inputs Sigma-Delta ADC Chopping Multiplexer, Conversion, and Data Output Timing Frequency Response Extended Voltage Range of the Analog Input Voltage Reference Inputs Reference Detect I/O Port Calibration ADC Zero-Scale Self-Calibration ADC Full-Scale Self-Calibration Per Channel System Calibration Outline Dimensions Ordering Guide