A/D D/A CONVERTER MODULE PCF8591

The VMA344 - PCF8591 is a monolithically integrated, low-power, 8-bit CMOS data acquisition device. The PCF8591 has four analog inputs, one analog output and a serial I2C bus interface.
For testing purposes, the VMA344 contains a phototransistor, NTC and a trimmer which are connected to the PCF8591 by 3 jumpers.

Features
single power supply
operating supply voltage 2.5 V to 6.0 V
low standby current
serial input and output via I2C-bus
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 A/D conversion
multiplying DAC with one analog output