Name:
AD7705 dual 16-bit ADC data acquisition module
Model: AD7705
The collected data is very stable, real 16-bit valid words.
Please copy the link and download the information yourself: http://pan.baidu.com/s/1sj8x9M1
This product is designed and produced by Avnet Electronics, providing Chinese materials, module schematics and routines (C51, AVR, STM8, STM32F4)
All the routines are original by Avnet, we can provide technical support. Some manufacturers plagiarize our data, which cannot provide native technical support. Please pay attention to identify them.
STM32-V5 development board wiring method: directly plug into the interface socket of NRF24L01.
Features:
1. 3.3V or 5.0V DC power supply
2. MCU interface: SPI
3. Main ADC chip: TM7705 (Shenzhen Tianwei original brand new chip, fully compatible with AD7705 chip)
4. External LM285-2.5 reference voltage (imported original authentic). Some peers use the low-end domestic TL-431 as a benchmark, and the temperature stability and accuracy are not an order of magnitude worse. Please be sure.
5. The input circuit is equipped with voltage divider resistance and R-C filter, which is convenient for customers to change the gain range by themselves
6. With programmable gain amplifier in the chip, gain range: 1-128 times
7. The internal input of the chip has a buffer amplifier, which can be directly connected to the sensor.