PCF8591 key performance indicators:
single power supply
PCF8591 operating voltage range of 2.5V-6V
Low Standby Current
via I2C -bus serial input / output
PCF8591 through 3 hardware address pins addressing
PCF8591 I2C bus speed sampling rate decision
4 analog inputs programmable as single-ended or differential inputs
auto increment channel selection
PCF8591 analog voltage range from VSS to VDD
PCF8591 built-in track and hold circuit
8-bit successive approximation A / D converter
Through an analog output of the DAC gain