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Recent content by alasliu

  1. A

    question about low power LDO

    no Added after 4 minutes: please giveme some advice thank you
  2. A

    question about low power LDO

    thanks LDO used in soc 0-20mA transient response dip< 50m PSRR > 40dB at 1M about 1uF ceramic cap Added after 59 minutes: have used PMOS
  3. A

    question about low power LDO

    dear all i want to design a low power LDO. but i dont know which structure to use. thank you
  4. A

    Any good idea to design a LDO without output capacitor ?

    ldo register his website address
  5. A

    How to avoid unwanted comparator switching of flash ADC comparator?

    basic adc comparator why use flash you are low speed.6 bit should be no problem.but according to PSRR
  6. A

    help on high speed op/comparator design

    low offset pre amp + inverter maybe
  7. A

    comparator design problem

    may be simulation problem
  8. A

    How to get a constant turn over theshold voltage of inverter

    you can use comparator or ldo to supply invertor
  9. A

    How to eliminate noise in MOSFET?

    NOISE in MOSFET? flick noise is important at mixed-signal systemaliased around clock frequency.
  10. A

    Low current increase the noise

    input pairs thermal noise is 4kTr/gm. so if you increase current, gm ascend. thermal noise will be reduced.
  11. A

    bandgap important problem

    thanks for you advices
  12. A

    how does the vth affect the gm of nmos differential pairs?

    vt vth nmos do you have schematic, i think maybe tail current change.
  13. A

    how to simulate the noise performance of opamp with hspice

    .ac .noise
  14. A

    bandgap important problem

    1 how to improve PSRR for bandgap using OP 2 if resistor ratio is not integer, how to do layout. for example ratio is 11.2
  15. A

    ac/dc converter power supply

    hard to do it
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