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converting an analog signal into digital and saving the formula on the ADE outputs

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Hi all,
I am doing a DC simulation and I desire to display the value of an analog signal as 0 or 1 depending on whether the voltage level is 0 or 1.8V.
In a second step I'll need to do that also for a bus of 4 bits.

The equation I am using is the following: numConv(value(awvAnalog2Digital(v("/lna_wrapper/lna1_cg_bias<0>" ?result "dcOp") nil nil 0.9 nil "centre") 0   ) "dec" t)

where first we convert to digital, pick the value and convert the string to decimal.

This equation works only on the calculator, if I send it to the ADS outputs and I evaluate I get an "eval error" (see below).

In the past I used this functions for a transient simulation and it worked, I wonder why now it doesn't on a simple DC sim.

Does anybody have an idea ? I am using Maestro

thanks 

Tommaso


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