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AD7817 Datasheet 10-Bit ADC

Manufacturer: Analog Devices

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General Description

The AD7817/AD7818 are 10-bit, single- and 4-channel analog-todigital converters (ADCs) with an on-chip temperature sensor that can operate from a single 2.7 V to 5.5 V power supply.

Each device contains a 9 μs successive approximation converter based around a capacitor digital-to-analog converter (DAC), an onchip temperature sensor with an accuracy of ±2°C, an on-chip clock oscillator, inherent track-and-hold functionality, and an on-chip reference (2.5 V).

The on-chip temperature sensor of the AD7817/AD7818 can be accessed via Channel 0.

Overview

01316-001 Data Sheet 4-Channel/Single-Channel, 9 μs, 10-Bit ADCs with On-Chip Temperature.

Key Features

  • 10-bit ADC with 9 μs conversion time 1 AD7818 and 4 AD7817 single-ended analog input channels On-chip temperature sensor Resolution of 0.25°C ±2°C error from.
  • 40°C to +85°C.
  • 55°C to +125°C operating range Wide operating supply range: 2.7 V to 5.5 V Inherent track-and-hold functionality On-chip reference (2.5 V ± 1%) Overtemperature indicator Automatic power-down at the end of a conversion Low power operation 4 μW at a throughput rate of 10 SPS 40 μW at a throughput rate of 1 kSPS.

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