PCF8591 8-bit ADC and DAC

1. Description
2. Project Code
3. References

Description

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.

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Project Code

This is an I2C Analog to Digital Converter project. A Raspberry Pi employing the PCF8591 Analog to Digital Converter (ADC). This project show how to read write to the chip's 4 analog inputs (ADC) and one analog output or Digital to Analog Converter (DAC).

References