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AD7789 - Sigma-Delta ADCs

Description

The AD7788/AD7789 are low power, low noise, analog front ends for low frequency measurement applications.

The AD7789 contains a low noise, 24-bit, ∑-∆ analog-to-digital converter (ADC) with one differential input.

The AD7788 is a 16-bit version of the AD7789.

Features

  • AD7788: 16-bit resolution AD7789: 24-bit resolution Power Supply: 2.5 V to 5.25 V operation Normal: 75 µA maximum Power-down: 1 µA maximum RMS noise: 1.5 µV AD7788: 16-bit p-p resolution AD7789: 19-bit p-p resolution (21.5 bits effective) Integral nonlinearity: 3.5 ppm typical Simultaneous 50 Hz and 60 Hz rejection Internal clock oscillator VDD monitor channel 10-lead MSOP.

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Datasheet preview – AD7789

Datasheet Details

Part number AD7789
Manufacturer Analog Devices
File Size 348.65 KB
Description Sigma-Delta ADCs
Datasheet download datasheet AD7789 Datasheet
Additional preview pages of the AD7789 datasheet.

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Full PDF Text Transcription

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Data Sheet FEATURES AD7788: 16-bit resolution AD7789: 24-bit resolution Power Supply: 2.5 V to 5.25 V operation Normal: 75 µA maximum Power-down: 1 µA maximum RMS noise: 1.5 µV AD7788: 16-bit p-p resolution AD7789: 19-bit p-p resolution (21.5 bits effective) Integral nonlinearity: 3.5 ppm typical Simultaneous 50 Hz and 60 Hz rejection Internal clock oscillator VDD monitor channel 10-lead MSOP INTERFACE 3-wire serial SPI-, QSPI™-, MICROWIRE-, and DSP-compatible Schmitt trigger on SCLK APPLICATIONS Smart transmitters Battery applications Portable instrumentation Sensor measurement Temperature measurement Pressure measurement Weigh scales 4 to 20 mA loops GENERAL DESCRIPTION The AD7788/AD7789 are low power, low noise, analog front ends for low frequency measurement applications.
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