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PCF8591 Analog to Digital AD/DA converter

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  • Operating voltage: 2.5-6V
  • Low standby current 
  • Through the I2C bus serial input / output 
  • PCF8591 by 3 hardware address pins addressing 
  • Sampling rate PCF8591 I2C bus rate decided 
  • 4 analog inputs programmable as single-ended or differential inputs 
  • Automatic incremental 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 DAC gain 
  • module chip using PCF8951 
  • Size: 3.6cm * 2.3cm

Pins definition:

  • The AINO chip analog input interface. 
  • AIN1 chip analog input interface 
  • AIN2 chip analog input interface 
  • AIN3 chip analog input interface
  • The right side of the SCL IIC clock interface to access the microcontroller IO port 
  • The SDA IIC digital interface connected microcontroller IO port 
  • GND module to an external 
  • VCC power supply interface external 3.3v-5v 
  • Module red jumper instructions for use 
  • Module three red short circuit cap, respectively, the role are as follows: 
  • P4 connected to the P4 jumper, select thermistor access circuit 
  • P5 connected to P5 jumper to select the photo-resistor access circuit 
  • P6 connected to the P6 jumper, to select 0-5V adjustable voltage access circuit


Note: Images are just for representational purpose, and the item layout, breakout pins, PCB color, etc. keeps on varying.



PCF8591 Module Datasheet & Schematic

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