PCF8591P

NXP  PCF8591P  芯片, 8位模数/数模转换器

The is a 8bit A/D and D/A converter in 16 pin DIP package. It is a single chip, single supply, low power 8bit CMOS data acquisition device with four analogue inputs, one analogue output and serial I2C bus interface. Three address pins A0, A1 and A2 are used for programming hardware address allowing to use up to eight devices connected to I2C bus without additional hardware. Address, control and data to and from the device are transferred serially via two line bidirectional I2C bus. The functions of PCF8591P includes analogue input multiplexing, onchip track and hold function, 8bit analogue to digital conversion and 8bit digital to analogue conversion. The maximum conversion rate is given by maximum speed of the I2C bus.

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Single power supply

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Operating supply voltage range from 2.5V to 6V

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Sampling frequency is 11.1KHz

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Serial input and output via I2C bus

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Maximum sampling rate given by I2C bus speed

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4 analogue inputs configurable as single ended or differential inputs

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Auto incremented channel selection

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Multiplying DAC with one analogue output

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Ambient temperature range from -40°C to 85°C

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Common mode rejection ratio of 60dB

ESD sensitive device. Precaution should be used when handling the device in order to prevent damage.