This module is equipped with a low-power TI ADS1256IDB
High-precision ADC chips
2.5V reference voltage supply
Using SPI interface communication protocol, with data output rates up to 30 ksps, it supports single-ended and differential input.
Interface pins
1.5V-GND: Power input 5V
SCLK, DIN, DOUT, CS: SPI Communication Interface
DRDY: ADS1256 Data Output Ready (Active Low)
PDWN: ADS1256 Synchronization / Power Off Input (Active Low)
AIN0-AIN7: Analog Voltage Input, can be configured as 8 single-ended inputs or 4 differential inputs (the measured voltage must be shared with the module)
Precautions
Due to the ADS1256 voltage being 5V and the measured voltage needing to be 2V below the supply voltage, the module is only suitable for measuring analog voltages within 3V V.
Specifications
LC ADS1256 Funcionality
Integrated high-precision TI ADS1256IDB ADC chips
Integrated 2.5V ADR03 reference voltage source chips
Data output rates greater than 30 ksps, low nonlinearity to ±0.0010%
The module can be configured as 8 single-ended inputs or 4 differential inputs
The ADS1256 module is suitable for measuring analog voltage within 3V