8-Bit A/D and D/A Converter

PCF8591
  • Not Recommended for New Designs
  • This page contains information on a product that is not recommended for new designs.

The PCF8591 is a single-chip, single-supply low-power 8-bit CMOS data acquisition device with four analog inputs, one analog output and a serial I2C-bus interface. Three address pins A0, A1 and A2 are used for programming the hardware address, allowing the use of up to eight devices connected to the I2C-bus without additional hardware. Address, control and data to and from the device are transferred serially via the two-line bidirectional I2C-bus.

The functions of the device include analog input multiplexing, on-chip track and hold function, 8-bit analog-to-digital conversion and an 8-bit digital-to-analog conversion. The maximum conversion rate is given by the maximum speed of the I2C-bus.

Product Details

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Block Diagram

Block diagram: PCF8591P, PCF8591T

PCF8591P, PCF8591T Block Diagram
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Features

System Features

  • Single power supply
  • Operating supply voltage 2.5 V to 6.0 V
  • Low standby current
  • Serial input/output via I2C-bus
  • I2C address selection by 3 hardware address pins
  • Max sampling rate given by I2C-bus speed
  • 4 analog inputs configurable as single ended or differential inputs
  • Auto-incremented channel selection
  • Analog voltage range from VSS to VDD
  • On-chip track and hold circuit
  • 8-bit successive approximation analog-to-digital conversion
  • Multiplying DAC with one analog output.
  • Supply monitoring
  • Reference setting
  • Analog control loops

Documentation

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Hardware

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1 hardware offering

  • ADAC 3 Click
    Evaluation and Development Boards

    ADAC 3 Click

    ADAC 3 Click is a compact add-on board representing the ADC/DAC combo solution. This board features the PCF8591, a low-power 8-bit CMOS data acquisition device with 4anal...
    ADAC 3 Click By Mikroe Gold Partner

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