which ic is best for connect multiple 4 wire load cell

Hi Natesh,

Sorry for the delay in response.

What level of resolution are you looking for?
How often will you be measuring from each other the load cells - what kind of sample rate do you need?

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Hi Natesh,

An additional question I have is do you want to connected the four load cells in parallel and take a single reading? Or do you want to take four individual load cell measurements?

I will assume that you want to have a four point measurement similar to a platform scale and get the average result from the four load cells in parallel. You could do this with the ADS122C04. The typical load cell is a resistive bridge measurement and there is an application example in section 9.2.3 of the ADS122C04 datasheet on page 59. In your application you would need to place the 4 load cells in parallel.

If you need to measure the four load cells independently, then we do not have a good single chip I2C solution. However, you could use 2 ADS122C04 devices with each ADS122C04 connecting to 2 load cells. For example one load cell could connect to AIN0/AIN1 and the 2nd load cell to the AIN2/AIN3 inputs.

Best regards,
Bob B