erikl
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18th February 2020, 23:52Dominik Przyborowski replied to a thread Netlist is different between schematic and layout in Analog Integrated Circuit (IC) Design, Layout and FabricationI am merciful today ;-) In the schematic netlist you have only mosfets - model of channel below the gate oxide. In the layout, your p-channel...11 replies | 298 view(s) -
18th February 2020, 19:16Dominik Przyborowski replied to a thread Netlist is different between schematic and layout in Analog Integrated Circuit (IC) Design, Layout and FabricationDiode. Do you know such device?11 replies | 298 view(s)
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16th February 2020, 09:22Dominik Przyborowski replied to a thread RHP poles always appear in my designed amplifier in Analog Circuit DesignI have tried some small gain multistage and they are working on simulations. RHP is a sign that somewhere you have positive feedback. It might be...3 replies | 236 view(s)
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13th February 2020, 17:32When the given expression is really the TRANFER FUNCTION (and not thefrequency with s=seconds), it must be interpreted as the PHASE characteristics....9 replies | 578 view(s) -
6th February 2020, 14:06Hello everyone I'm trying to use smoke analysis with imported MOS model, it works well with spice but the smoke only provides me the PDM paramater...0 replies | 263 view(s) -
31st January 2020, 21:33erikl replied to a thread Maximum current of the CMFB circuit in Analog Integrated Circuit (IC) Design, Layout and FabricationRight: the 2nd circuit can adjust the common mode level faster than the 1st circuit by delivering more current to its output stage and its capacitive...5 replies | 474 view(s)
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31st January 2020, 01:32erikl replied to a thread Maximum current of the CMFB circuit in Analog Integrated Circuit (IC) Design, Layout and FabricationYes, I'd think so, even if you perhaps wouldn't need the higher gain: the common mode gain of the diff amp is (should be) rather low, in the order of...5 replies | 474 view(s)
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30th January 2020, 00:28erikl replied to a thread CMFB biasing current in fully differential Opamp with adaptive current source in Analog Integrated Circuit (IC) Design, Layout and FabricationVery true. But what if the common-mode voltage is just - say - on its half way to its optimum level, before a real large signal arrives at the output...7 replies | 796 view(s)
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29th January 2020, 22:49Dominik Przyborowski replied to a thread CMFB biasing current in fully differential Opamp with adaptive current source in Analog Integrated Circuit (IC) Design, Layout and FabricationIt's all true. CMFB does not matter in many points, but can kill performance of IP3 or response on the kickback noise from SAR ADC loading opamp....7 replies | 796 view(s)
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28th January 2020, 19:39erikl replied to a thread CMFB biasing current in fully differential Opamp with adaptive current source in Analog Integrated Circuit (IC) Design, Layout and FabricationAs you probably know, a differential output stage absolutely needs a CMFB, because otherwise the output levels would be undefined. So CMFB's...7 replies | 796 view(s)
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27th January 2020, 15:36shanmei replied to a thread Is it stable that phase drop to close to 0 but rise to 75 degree when gain is 0dB? in Analog Integrated Circuit (IC) Design, Layout and FabricationWow, that is a great explanation for this frequency response. Thank you. You are right, the key is whether the denominator of the loop gain...15 replies | 1631 view(s)
About erikl
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- Area of specialization:
- Analog Circuit Design
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- Biography:
- designed (and layouted) analog cells and IP's in various CMOS processes
- Location:
- Germany
- Interests:
- analog design in CMOS
- Occupation:
- on my own
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