ADC121S101: LOGIC

Ryosuke Sugiura

Part Number: ADC121S101

Hello.
I have a question regarding SDATA of ADC121S101.
Which is the logic of SDATA, (1) or (2)?

(1)
High(5.0V) ="0"
Low(0V) ="1"

(2)
High(5.0V) ="1"
Low(0V) ="0"

In the case of (1), I think the 12bits value would be as follows.

0 Tom Hendrick over 2 years ago

Hi Ryosuke,

Your (2) option is the correct way to treat the SDO data. Please refer to Figure 18 - full-scale (-) is 0x000, full-scale (+) is 0xFFF.

0 Ryosuke Sugiura over 2 years ago in reply to Tom Hendrick

Hello.
Thank you for your message.

(2)
High(5.0V) ="1"
Low(0V) ="0"

Since the above is correct, I have revised the diagram.
Is the diagram below correct?

0 Tom Hendrick over 2 years ago in reply to Ryosuke Sugiura

Yes, it is.

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