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Recent content by doec

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    [SOLVED] Removing Noise From Ad Conversion

    I think the noise come up from the power supplies. Are you using appropriate precautions to reduce the noise, e.g. capacitors? regards, doec
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    [SOLVED] SIM300 communication problem

    The AT command should be ended with "\r" character in order to get response from SIM300. Regards, doec
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    Using auto router on analog layout

    Thank you, I found the way. Really it is not optimized but it could work in some situations. regards, doec
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    Using auto router on analog layout

    Hi all, is it possible to use the autorouting feature in an analog layout in Cadence IC6.1.3.500? If the answer to my question is yes, can you suggest me how to execute this function? Thank you, doec
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    reading external high voltages

    I had already taken into account the voltage divider. I wanted to see if any solutions with zener diodes or other proposals could work well for me. The process has been specified only to emphasize that I can't go directly inside the circuit with the high voltage. Thank you for your response, doec
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    reading external high voltages

    Hi all, I need help to read two external voltage (about 150V DC) and their difference (ranging from 1 to 5V) from inside an IC (0.35u CMOS process). In order to not to damage internal circuitry, I would like to make an indirect reading. Do you have some advice? Thank you, doec
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    [Moved] charge pump from 2-2.5 Vin to 3.3 Vout

    Hi all, I need help to design a charge pump from 2-2.5 Vin to 3.3 Vout, with a 20mA current load, f=1MHz using a CMOS 0.35u process. I do not have particular spec on efficiency. It is possible to use only internal components or I require external capacitor? Do you have a simple but working...

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