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AD7797 - (AD7796 / AD7797) Sigma-Delta ADC

This page provides the datasheet information for the AD7797, a member of the AD7796 (AD7796 / AD7797) Sigma-Delta ADC family.

Description

The AD7796/AD7797 are complete, analog front ends for high precision, bridge sensor applications such as weigh scales.

The AD7796/AD7797 contain a Σ-Δ ADC capable of 16-/24-bit resolution, respectively.

Features

  • RMS noise: 65 nV Instrumentation amp Temperature sensor Internal clock oscillator Simultaneous 50 Hz/60 Hz rejection Update rate: 4.17 Hz to 123 Hz Current: 250 μA typ Power-down: 1 μA Power supply: 2.7 V to 5.25 V.
  • 40°C to +85°C temperature range Independent interface power supply 16-lead TSSOP.

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Datasheet preview – AD7797

Datasheet Details

Part number AD7797
Manufacturer Analog Devices
File Size 489.02 KB
Description (AD7796 / AD7797) Sigma-Delta ADC
Datasheet download datasheet AD7797 Datasheet
Additional preview pages of the AD7797 datasheet.

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Full PDF Text Transcription

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www.DataSheet4U.com Low Power, 16-/24-Bit Sigma-Delta ADC for Bridge Sensors AD7796/AD7797 FEATURES RMS noise: 65 nV Instrumentation amp Temperature sensor Internal clock oscillator Simultaneous 50 Hz/60 Hz rejection Update rate: 4.17 Hz to 123 Hz Current: 250 μA typ Power-down: 1 μA Power supply: 2.7 V to 5.25 V –40°C to +85°C temperature range Independent interface power supply 16-lead TSSOP GENERAL DESCRIPTION The AD7796/AD7797 are complete, analog front ends for high precision, bridge sensor applications such as weigh scales. The AD7796/AD7797 contain a Σ-Δ ADC capable of 16-/24-bit resolution, respectively. The on-chip instrumentation amplifier has a fixed gain of 128, allowing small amplitude signals such as those from bridge sensors to be directly interfaced to the ADC.
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