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PCF8591 AD/DA Converterm Analog to Digital / Analog to Digital Module
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 Single power supply Operating supply voltage 2.5 V to 6 V Low standby current Serial input/output via I2C-bus Address by 3 hardware address pins Sampling rate given by I2C-bus speed 4 analog inputs programmable 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 Applications: Closed loop control systems Low power converter for remote data acquisition Battery operated equipment Acquisition of analog values in automotive£¬ audio and TV applications