Product Summary

The AD7710AR is a complete analog front end for low frequency measurement applications. The device accepts low level signals directly from a strain gage or transducer and outputs a serial digital word. The AD7710AR employs a sigma-delta conversion technique to realize up to 24 bits of no missing codes performance. The input signal is applied to a proprietary programmable gain front end based around an analog modulator. The AD7710AR modulator output is processed by an on-chip digital filter. The first notch of this digital filter can be programmed via the on-chip control register allowing adjustment of the filter cutoff and settling time. The applications of the AD7710AR include Weigh Scales, Thermocouples, Process Control, Smart Transmitters and Chromatography.

Parametrics

AD7710AR absolute maximum ratings: (1)AVDD to DVDD: –0.3 V to +12 V; (2)AVDD to VSS: –0.3 V to +12 V; (3)AVDD to AGND: –0.3 V to +12 V; (4)AVDD to DGND: –0.3 V to +12 V; (5)DVDD to AGND: –0.3 V to +6 V; (6)DVDD to DGND: –0.3 V to +6 V; (7)VSS to AGND: +0.3 V to –6 V; (8)VSS to DGND: +0.3 V to –6 V; (9)Analog Input Voltage to AGND: VSS – 0.3 V to AVDD + 0.3 V; (10)Reference Input Voltage to AGND: VSS – 0.3 V to AVDD + 0.3 V; (11)REF OUT to AGND: –0.3 V to AVDD; (12)Digital Input Voltage to DGND: –0.3 V to AVDD + 0.3 V; (13)Digital Output Voltage to DGND: –0.3 V to DVDD + 0.3 V; (14)Operating Temperature Range, Commercial (A Version): –40℃ to +85℃; Extended (S Version): –55℃ to +125℃; (15)Storage Temperature Range: –65℃ to +150℃; (16)Lead Temperature (Soldering, 10 secs): +300℃; (17)Power Dissipation (Any Package) to +75℃ : 450 mW; (18)Derates Above +75℃: 6 mW/℃.

Features

AD7710AR features: (1)Charge Balancing ADC: 24 Bits No Missing Codes; 60.0015% Nonlinearity; (2)Two-Channel Programmable Gain Front End: Gains from 1 to 128; Differential Inputs; (3)Low-Pass Filter with Programmable Filter Cutoffs; (4)Ability to Read/Write Calibration Coefficients; (5)Bidirectional Microcontroller Serial Interface; (6)Internal/External Reference Option; (7)Single or Dual Supply Operation; (8)Low Power (25 mW typ) with Power-Down Mode (7 mW typ).

Diagrams

AD7710AR functional block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
AD7710AR
AD7710AR


IC ADC 24BIT DIFF INP 24-SOIC

Data Sheet

0-11: $19.50
AD7710AR-REEL
AD7710AR-REEL


IC ADC 24BIT DIFF INP 24-SOIC

Data Sheet

0-1000: $15.03
AD7710ARZ
AD7710ARZ


IC ADC 24BIT DIFF INP 24-SOIC

Data Sheet

0-1: $21.16
1-10: $19.57
10-100: $16.71
100-250: $15.34
250-500: $14.60
500-1000: $14.10
AD7710ARZ-REEL
AD7710ARZ-REEL


IC ADC 24BIT DIFF INP 24-SOIC

Data Sheet

0-1000: $14.10
AD7710ARZ-REEL7
AD7710ARZ-REEL7


IC ADC 24BIT DIFF INP 24SOIC

Data Sheet

0-1: $21.79
1-10: $20.21
10-25: $18.51
25-100: $17.24
AD7710AR-REEL7
AD7710AR-REEL7


IC ADC 24BIT DIFF INP 24-SOIC

Data Sheet

0-400: $15.78