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
