ADC/DAC 모듈 -PCF8591
(ADC/DAC Module -PCF8591)
개요
- 본 제품은 PCF8519 칩을 탑재한 ADC/DAC 모듈입니다.
- PCF8591은 4개의 아날로그 입력, 한개의 아날로그 출력 및 I2C 인터페이스를 가진 제품입니다.
- 또한 모듈에는 ADC 어플리케이션에서 많이 사용되는 써미스터와 조도센서가 부착되어 있어 온도와 조도를 쉽게 읽어 들일 수 있습니다.
특징
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PCF8591 IC Features
- Single power supply
- PCF8591 operating voltage range of 2.5V-6V
- Low standby current
- Via I2C bus serial input / output
- PCF8591 by 3 hardware address pins addressing
- PCF8591 I2C bus speed sampling rate decided
- 4 analog inputs programmable single-ended or differential input
- 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
- 1 analog output DAC gain
- Module Features
- Module chip using PCF8951
- Module supports external voltage input of the 4-way acquisition (voltage input range of 0-5v)
- The module integrated photoresistor by AD collection precise value of the ambient light intensity
- Module integrated thermistor by the precise value of the ambient temperature of the AD acquisition
- Module integrated 1 channel 0-5V voltage input acquisition (the blue potentiometer to adjust the input voltage)
- Modules with power indicator (for the module power supply indicator lights)
- Modules with DA output indicator, when the module DA output interface voltage reaches a certain value, will be lit panel the DA output indicator, the higher the voltage, the more obvious indicator brightness;
- Module PCB size: 3.6cm * 2.3cm
- Standard double panel, thickness 1.6mm, nice layout, surrounded by a through-hole, aperture: 3mm, convenient fixed
- Module interface specification
The module on the left and right, respectively, to expand outside the 2-way pin header, respectively, as follows:
The left
- AOUT chip DA output interface
- AINO chip analog input interface 0
- AIN1 chip analog input interface 1
- AIN2 chip analog input interface 2
- AIN3 chip analog input interface 3
The right
- SCL – IIC clock interface connected to microcontroller IO port
- SDA – IIC digital interface connected to microcontroller IO port
- GND – connected to ground
- VCC – connected to 3.3v-5v
Four red jumper-cap instruction
- P4 – connected to P4 shorting cap, select thermistor access circuit
- P5 – connect P5 shorting cap, select photoresistor access circuit
- P6 – connected to P6 shorting cap, select 0-5V adjustable voltage access circuit
문서
연관제품
- 연관제품 1