AD7899

PRODUCTION

5 V Single Supply 14-Bit 400 kSPS ADC

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Overview

  • Fast (2.2 µs) 14-Bit ADC
  • 400 kSPS Throughput Rate
  • 0.3 µs Track/Hold Acquisition Time
  • Single Supply Operation
  • High-Speed Parallel Interface which Also Allows Interfacing to 3 V Processors
  • Low Power, 80 mW Typ
  • Selection of Input Ranges:
    ±10 V, ±5 V and ±2.5 V
    0 V to 2.5 V and 0 V to 5 V
  • Power-Saving Mode, 20 µW Typ
  • Overvoltage Protection on Analog Inputs
  • Power-Down Mode via STBY Pin

The AD7899 is a fast, low power, 14-bit A/D converter that operates from a single +5 V supply. The part contains a 2.0 µs successive approximation ADC, a track/hold amplifier, 2.5 V reference, on chip clock oscillator, signal conditioning circuitry and a high speed parallel interface. The part accepts analog input ranges of ±10 V , ±5 V, ±2.5 V, 0 V to +2.5 V and 0 V to +5 V. Overvoltage protection on the analog inputs for the part allows the input voltage to exceeded without damaging the parts or affecting a conversion in progress.

PRODUCT HIGHLIGHTS

  1. The AD7899 features a fast (2.2 µs) ADC allowing throughput rates of up to 400 kSPS.
  2. The AD7899 operates from a single 5 V supply and consumes only 80 mW typ making it ideal for low power and portable applications.
  3. The part offers a high-speed parallel interface. The interface
  4. can operate in 3 V and 5 V mode allowing for easy connection to 3 V or 5 V microprocessors, microcontrollers, and digital signal processors.
  5. The part is offered in three versions with different analog input ranges. The AD7899-1 offers the standard industrial ranges of ±10 V and ±5 V; the AD7899-2 offers a unipolar range of 0 V to 2.5 or 0 V to 5 V, and the AD7899-3 has an input range of ±2.5 V.

AD7899
5 V Single Supply 14-Bit 400 kSPS ADC
AD7899 Functional Block Diagram
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Documentation

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Software Resources

Evaluation Software 1

AD7899 Software (zip, 4.13MB)

 


Evaluation Kits

EVAL-AD7899

AD7899 Evaluation kit

Product Details

The EVAL-AD7899CBZ is a fully featured evaluation kit for the AD7899. This board operates in stand alone mode or in conjunction with the Evaluation Controller board . When operated with the Evaluation Controller board, software is provided enabling the user to perform detailed analysis of the ADC's performance. This software includes the technical note describing the operation and set up of the evaluation board in standalone operation or when operated with the Evaluation Controller board.

EVAL-AD7899
AD7899 Evaluation kit

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