24-Bit 8-Channel ADC Module, 30ksps SPI Data Acquisition, 2.5V Reference, 5V, for STM32 and STC Microcontrollers

Features:<br>1. 24-bit 8-channel ADC module with TI ADS1256IDB chip and onboard 2.5V ADR0325 reference voltage source for high-precision data acquisition.<br>2. SPI communication with data output rates up to 30ksps.<br>3. Low non-linearity of ±0.0010%.<br>4. Configurable for 8 single-ended inputs or 4 differential inputs, suitable for measuring analog voltages up to 3V.<br>5. Operates at 5V.<br>Product Details:<br>Test method: Reference programs are available for STC15W and STM32 microcontrollers with 8-channel serial display, and for STC89C52 with 4-channel 1602 LCD display. A simple test with STC89C52 and 1602 LCD: connect 5V and GND to a DC 5V supply. Connect SCLK, DIN, DOUT, DRDY to MCU pins P1.2, P1.3, P1.4, P1.5, P1.6. Connect AIN0, AIN1, AIN2, AIN3 to 2.5V, 2.5V, 2.5V, 2.5V (ensure common ground with ADS1256). The LCD will display four voltage values: groups 1, 2, and 4 are single-ended input voltages for AIN0, AIN1, and AIN3; group 3 is the difference between AIN2 and AIN3. Expected values: approximately 2.5V, 2.5V, 0V, 2.5V.<br>Note: Product appearance, color, and printed characters may vary between batches, but this does not affect functionality.<br>Specifications:<br>Size: about 60 x 35mm<br>Material: PCB<br>Color: dark blue<br>Package includes: 1 x 24-bit 8-channel ADC module. Other products not included. Note: Light reflection and display may cause slight color variation.