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AD7890 Datasheet 12-Bit Serial Data Acquisition System

Manufacturer: Analog Devices

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General Description

The AD7890 is an 8-channel 12-bit data acquisition system.

The part contains an input multiplexer, an on-chip track/hold amplifier, a high speed 12-bit ADC, a 2.5 V reference, and a high speed, serial interface.

The part operates from a single 5 V supply and accepts an analog input range of ±10 V (AD7890-10), 0 V to 4.096 V (AD7890-4), and 0 V to 2.5 V (AD7890-2).

Key Features

  • Fast 12-bit ADC with 5.9 μs conversion time Eight single-ended analog input channels Selection of input ranges: ±10 V for AD7890-10 0 V to 4.096 V for AD7890-4 0 V to 2.5 V for AD7890-2 Allows separate access to multiplexer and ADC On-chip track/hold amplifier On-chip reference High-speed, flexible, serial interface Single supply, low-power operation (50 mW maximum) Power-down mode (75 μW typ).

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