The PCF8591 is a 8-Bit A/D - D/A Converter in 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.

Features of PCF8591 8-Bit A/D - D/A Converter:

• 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.

Applications of PCF8591 8-Bit A/D - D/A Converter:

• Supply monitoring.
• Reference setting.
• Analog control loops.
• DIY projects.
• Arduino projects.
• Raspberry-Pi projects.
• Electrical/Electronic projects.

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