Overview
●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.
●MoreLess
●## 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 A/D conversion
● Multiplying DAC with one analog output.
●## Target Applications
● Supply monitoring
● Reference setting
● Analog control loops
●## Features
