ADS1220 24-bit, 4-channel Low Noise ADC Breakout Board

Why would you need a 24-bit ADC? When 16-bit is just not enough. 

If your design demands high precision analog measurements, this new breakout board for the ADS1220 24-bit Sigma-delta ADC can get the job done.

Most of the previously available 24-bit ADCs have been difficult to use since they require a separate voltage reference and a lot of external components among other things. The ADS1220 gets rid of almost all external components with an internal voltage reference and internal clock. This is one of the easiest to use 24-bit ADCs that we have come across. 

We also provide the Arduino libraries for interfacing this chip with your Arduino. To install the library, download the zip file from our github site, rename it to ProtoCentral_ADS1220 and unzip this file in your Arduino libraries folder.

Features

• Programmable Data Rates: Up to 2 kSPS
• Programmable Gain: 1 V/V to 128 V/V
• Low current : 250 uA
• Low-Noise: 90 nVRMS at 20 SPS

Applications

• High Precision analog voltage measurement
• RTD interfacing
• High precision chemical sensors

Documents

• ADS1220 Datasheet
• Schematic (PDF)
• ProtoCentral Arduino Library for ADS1220 (github) (zip)

A project using the ADS1220: