PCF8591P A-D / D-A Converter - (AD8234)

Description:

The PCF8591 is a single-supply, low-power, 8-bit CMOS data acquisition device with one circuit, four analog inputs, one analog output, and an I²C serial bus interface. Three address pins, A0, A1, and A2, are used for hardware address programming, allowing up to eight devices to be connected to the I²C bus without additional hardware. Address, control, and data to and from the device are transferred serially via two bidirectional I²C bus lines. Device functions include multiplexed analog input, on-chip track and hold function, 8-bit analog-to-digital conversion, and 8-bit digital-to-analog conversion. The maximum conversion rate is determined by the maximum I²C bus speed.

Features:

- Single power supply

- Operating supply voltage 2.5 V to 6 V

- Low standby current

- Serial input/output via I²C bus

- 3 hardware address pins

- Sampling rate determined by I²C bus speed

- 4 analog inputs programmable as unipolar or differential inputs

- Auto-increment channel selection

- Analog voltage range from VSS to VDS

- On-chip track and hold function

- 8-bit successive approximation A/D conversion

- DAC with one analog output.

Applications:

- Closed-loop control systems

- Low-power converter for remote data acquisition

- Works with battery-powered equipment

- Acquisition of analog values in automotive, audio, and television applications

Datasheet