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# AMC1306M25: In case of input range between ±250mV and ±320mV

Part Number: AMC1306M25

Hi all

Would you mind if we ask AMC1306M25?

<Question1>
In case of input range between ±250mV and ±320mV, how much will the output data code?
On the datasheet, there is the description;
"A differential input of 250 mV (for the AMC1306x25) or 50 mV (for the AMC1306x05) produces a stream of ones and zeros that are high 89.06% of the time.
With 16 bits of resolution, that percentage ideally corresponds to the code 58368."
"A differential input of –250 mV (–50 mV for the AMC1306x05) produces a stream of ones and zeros that are high 10.94% of the time and ideally results in code 7168 with 16-bit resolution."
->We assume the followings;
Input range　                 Data code
+250mV ～ +320mV      58368～65535
-250mV  ～ -320mV       7168～0
Is our recognition correct?

<Question2>
In relation to <Question1>, we have Figure51.

It seems that Dout saturated(65535 or 0) at +FS(+250mV) and -FS(-250mV).
So, this figure only shows the linearity, right?

Kind regards,

Hirotaka Matsumoto

• Hi team

In relation to <Question1> of last our update, if you have ADC code image like as follow, could you share us?

Kind regards,

Hirotaka Matsumoto

• Hello Matsumoto-san,

You are correct. Keep in mind that the linearity specifications are not guaranteed outside of the linear input range of +/-250mV.

Unfortunately the only figures that we have to demonstrate this are in the datasheet, namely the figures that you already pointed out.