ADS1256 24-bit ADC Module with Serial Output

The ADS1256 24-bit ADC Module is a high-precision 8-channel analog-to-digital converter board, ideal for applications requiring accurate and reliable data conversion. It integrates the STM32F103C8T6 microcontroller and the ADS1256 AD conversion chip to deliver superior performance. The module features on-board voltage regulation and anti-reverse power protection, making it versatile for various power supply options. It is designed for ease of development with all IO ports accessible and supports program downloads via serial port.

Specifications of ADS1256 24-bit ADC Module

• Dimensions: 82.8 x 53.4 x 1.6mm

• Chip Model: STM32F103C8T6 (MCU), ADS1256 (24-bit ADC)

• Power Supply Voltage: 5V and 3.3V on-board regulators; 9V external DC power supply

• Crystal Frequency: 8MHz (internal frequency 72MHz)

• Channels: 8 (24-bit)

• Reference Voltage: 2.5V (generated by precision voltage regulator)

• Programming Interface: Serial port (no JLINK interface)

• Test Function: Potentiometer for AD input testing (AN0-AN7)

How to Use ADS1256 24-bit ADC Module

Mode 1:

1. Continuously acquire single-channel AN0 analog voltage for ADC conversion.

2. Calculate the converted data as voltage value.

3. Send data out through the serial port in ASCII code form.

4. Use serial port assistant software to read voltage directly, simplifying software development.

1. power input terminal, input voltage range 5.5V - 12V (5V power supply, please connect directly to 2);

2. 5V power supply input terminal (1.2 two power supply, only one can);

3. STM32F103C8T6 leads to GPIO, which is convenient for the development of two times. The silk screen is directly corresponding to the pin number of the chip.

4. new original master control MCU: STM32F103C8T6;

5. 2.5V datum, ultra high precision, low temperature floating;

6. adjustable potentiometer, output adjustable voltage link to AIN0/ I0;

7. the 8 channels of input are collected, the I0-I7 is connected to the positive end of the acquisition voltage, and the G is simulated, and the negative end of the acquisition voltage is connected.

8. input filter and attenuation resistance, default does not do attenuation, leave the position of welding attenuation resistance, 0603 package;

9. ADS1256IDB collection chip, new original import;

10. power indicator light LED;

11. JTAG interface, designed by the definition of JLINK-V8 or V9;

12. unmarked;

13. STM32F103C8T6 reset button;

14. USB to TTL connection, corresponding to MCU TX, RX, GND, can communicate directly with the computer;

15. Imported 3232 serial port communication chip;

16. Serial port, mother head;

17. The output voltage of the adjustable potentiometer is controlled by I0 / AIN0: disconnecting the IO suspension, and measuring the output voltage end of the adjustable potentiometer by I0;

18. STM32 BOOT0 and BOOT1 select control jump cap;