Dual Channel 16-Bit ADC module

Description:

1. 3.3V or 5.0V DC power supply

2. MCU interface: SPI

3. the main ADC chip: AD7705

4, an external reference voltage LM285-2.5 (imported genuine original)

5. the input circuit with a resistor divider and the RC filter,

   enabling customers to change their own gain range

6. the chip with programmable gain amplifier, the gain range: 1-128 times

7. the chip with internal input buffer amplifier can be