Overview

Features and Benefits

  • 16-Bit Σ-Δ ADC
  • Simultaneous 50 Hz and 60 Hz Rejection at 20 Hz Update Rate
  • VREF Select Allows Absolute and Ratiometric Measurement Capability
  • Programmable Gain Front End
  • ISOURCE Select
  • 16-Bit No Missing Codes
  • 13-Bit p-p Resolution @ 20 Hz, 20 mV Range
  • 16-Bit p-p Resolution @ 20 Hz, 2.56 V Range

Product Details

The AD7709 is a complete analog front-end for low frequency measurement applications. The AD7709 contains a 16-bit sigma delta ADC with PGA and can be configured as 2 fully-differential input channels or 4 pseudo-differential input channels. Inputs signal ranges from 20mV to 2.56V can be directly converted using the AD7709. These signals can be converted directly from a transducer without the need for signal conditioning. Other on-chip features include three software configurable current sources, switchable reference inputs, low side power switches and a 4-bit digital I/O port.

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (1)

Documentation & Resources

  • View All (17)
  • Data Sheets (1)
  • Application Notes (12)
  • Technical Articles (4)
  • Tools & Simulations

    Design Tools

    Sigma-Delta ADC Tutorial

    An interactive illustration showing the behavior of an idealized sigma-delta A/D converter.

    Design Resources

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    PCN-PDN Information

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