AD7710 Datasheet PDF

●GENERAL DESCRIPTION

●The AD7710 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. It 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 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.

●FEATURES

●Charge Balancing ADC

●   24 Bits, No Missing Codes

●   ±0.0015% Nonlinearity

●2-Channel Programmable Gain Front End

●   Gains from 1 to 128

●   Differential Inputs

●Low-Pass Filter with Programmable Filter Cutoffs

●Ability to Read/Write Calibration Coefficients

●Bidirectional Microcontroller Serial Interface

●Internal/External Reference Option

●Single- or Dual-Supply Operation

●Low Power (25 mW Typ) with Power-Down Mode

●   (7 mW Typ)

●APPLICATIONS

●Weigh Scales

●Thermocouples

●Process Control

●Smart Transmitters

●Chromatography