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AD7707 - Sigma-Delta ADC

General Description

The AD7707 is a complete analog front end for low frequency measurement applications.

This 3-channel device can accept either low level input signals directly from a transducer or high level (±10 V) signals and produce a serial digital output.

Key Features

  • Charge balancing ADC 16 bits, no missing codes ±0.003% nonlinearity High level (±10 V) and low level (±10 mV) input channels True bipolar ±100 mV capability on low level input Channels without requiring charge pumps Programmable gain front end Gains from 1 to 128 3-wire serial interface SPI, QSPI™,.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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3 V/5 V, ±10 V Input Range, 1 mW 3-Channel 16-Bit, Sigma-Delta ADC AD7707 FEATURES Charge balancing ADC 16 bits, no missing codes ±0.003% nonlinearity High level (±10 V) and low level (±10 mV) input channels True bipolar ±100 mV capability on low level input Channels without requiring charge pumps Programmable gain front end Gains from 1 to 128 3-wire serial interface SPI, QSPI™, MICROWIRE™ and DSP compatible Schmitt trigger input on SCLK Ability to buffer the analog input 2.7 V to 3.3 V or 4.75 V to 5.25 V operation Power dissipation 1 mW at 3 V Standby current 8 μA maximum 20-lead SOIC and TSSOP packages GENERAL DESCRIPTION The AD7707 is a complete analog front end for low frequency measurement applications.