Your cart is empty.
Your cart is empty. Description:
ADS1256 8 road 24-bit ADC module mounted TI ADS1256IDB, minimum Power consumption, high precision ADC chips and 2.5V datum voltage source, using SPI interface communication protocol, data output rates up to 30ksps, support single-ended input and differential input.
Interface:
5V, GND: 5V power input
SCLK, DIN, DOUT, CS: SPI communication Interface
DRDY: ADS1256data be ready output (Active low level)
PDWN: ADS1256 Sync / Turn off the power input (Active low level)
AIN0-AIN7: Analog voltage input, it can be configured as either 8 single-ended inputs or 4 differential inputs
(The measured voltage should be shared with the module)
Note:
Because the voltage of ADS1256 is 5V, and The measured voltage should be 2V below the supply voltage, so the module is only suitable for measuring analog voltages within 3V.
Instructions of how to use:
Module provides STC15W and STM32 microcontroller 8-channel serial display reference program and STC89C52 single-chip 4-channel 1602LCD display reference program, the STC89C52 Microcontroller + 1602 LCD LCD test method is as follows: 5V, GND connect to DC 5V power supply, SCLK, DIN, DOUT, DRDY, CS connect to Microcontroller P1.2, P1.3, P1.4, P1.5, P1.6 respectively, AIN0, AIN1, AIN2, AIN3 connect to 2.5V, 2.5V, 2.5V,2.5V respectively (The measured voltage should be in common with the ADS1256),1602 LCD will shows these four sets of voltage values, in which, the 1st ,2nd ,4th sets are single-ended input voltage value of AIN0, AIN1, AIN3, and the 3rd set is the difference of AIN2-AIN3, the voltage values of these four sets are 2.5V, 2.5V, 0V, 2.5V.
Package included:
1* ADS1256 24 Bit 8 Channel ADC AD Module
Customer
Reviewed in the United States on February 24, 2025
This board does not bring out the "Reset" line but I guess it usually isn't necessary anyway. I'm using the Curiousscientist library for ADS1256 with a Pi Pico microcontroller. Using max PGA gain (64x) and slowest sample rate (2.5 per second) I measure RMS noise with shorted input near 0.21 microvolts (in either differential or single-ended mode, and at either 0V or at 2.5V common-mode voltage). The ADS1256 datasheet predicts RMS noise should be 0.03 microvolts in these conditions, but that may require better shielding of the entire board from ambient RFI and air drafts (?) I am using the default series 1k resistors on each input line, but the thermal Johnson noise from them is still an order of magnitude smaller at around 2 Hz bandwidth, so it's not that.
Dwayne Esterline
Reviewed in the United States on January 27, 2025
Works well. I have tested all modes using the curiousscientist library available in Arduino IDE, paired with a Teensy 4.1 microcontroller. This is a complex device, with lots of settings and cross interactions between settings that requires studying the datasheet to understand. I shorted the inputs to ground and studied the volatage variation- which represents the noise which is internal to the device. Expect stability to about 100uV at highest sampling rate, and about 1uV at the lowest sampling rate. Your mileage may vary.
Customer
Reviewed in the United States on January 19, 2025
You get 8 channels of 24 bit single-ended or 4 channels of 23 bits differential with pre Amp gains of 1,2,4,8,16,32, and 64. The ADC Ref voltage is set to 2.5vdc on this board. Wiring to Arduino is easy. Software libraries and code are available for free online.
Willem G. Langeveld
Reviewed in the United States on August 12, 2024
I have tried 5 different ADS1256 boards with the Teensy 4.1, and these boards generally work the most reliably, even in "cycling" mode, after I made some changes to Curious Scientist's ADS1256 library. Some other boards also work, mostly, but can fail to work correctly particularly in "cycling" mode (usually after a short period of time). I also made some changes/additions to the library to avoid "cycling" mode entirely, and that works nearly as fast. I further tried 3 copies of yet another board that would work sometimes but mostly not at all. One can play around with the SPI speed and various time delays and that can help at times, but not reliably.
Recommended Products
