ADS1018: 2ch (Differential) / 4ch (Single-Ended)、8 bit ~ 12bit and PGA

Roy Chou1

Part Number: ADS1018

Hi All,

I find the ADS1018 in ti.com, but the PGA is changed by FSR instead of constant value. We want to find the ADC chip which match below spec.

2ch (Differential) / 4ch (Single-Ended)、8 bit ~ 12bit and PGA

Regards,

Roy

over 3 years ago

0 Cole Macias over 3 years ago

TI__Mastermind 18900 points

Hello Roy,

Unfortunately, in the context of ADCs with integrated PGAs, Full Scale Range (FSR) will always change with gain as shown in the equation below (click on picture for better resolution):

More information can be found in this post: https://e2e.ti.com/blogs_/archives/b/precisionhub/posts/it-s-in-the-math-how-to-convert-adc-code-to-a-voltage-part-1

As for the rest of the criteria presented, the ADS1018 looks like a good choice.

Best,

-Cole

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ADS1018: 2ch (Differential) / 4ch (Single-Ended)、8 bit ~ 12bit and PGA