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Recent content by aabs

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    Need help - how can i eliminate AD810 oscillation ?

    about ad 810 Hi Now i am working on a project. i use a AD810 in my work after AD810 i have amplifier and buffer circuit. i saw a noise on output after a lot searching i found out AD810 is noise source. because when i remove AD810 noise will be neglected. i show output of circuit in a picture...
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    how to set op-amp specifications?

    how to set op-amp spec? Hi anyone know how we should select (set) op-amp spec (gain, phase margin, UGBW, ...) in various application. (if we are op-amp designer). is there any reference. thanks
  3. A

    Question about channel length in layout

    salaam i am working on Op-amp designing i want to know if we are designing in 0.18u can we have transistor with L=0.25u i ask this question because i see some design that the channel length is not equal to technology L. thanks.
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    Help me decrease an unknown noise in PCB

    how to eliminate noise from pcb thanks for your replys first i use high frequency OPAMP in my design in a two stage form and i have power amplifier class AB in output. frequency range is wide (0.1Hz-5MHz) i test the circuit when all IC was rejected from circuit so there was any amplification...
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    Help me decrease an unknown noise in PCB

    Hi now i am working on a signal amplifier that should out signal from 20mV to 20V but i have a high frequency (~50MHz) noise whit 20mV-pp amplitude in my PCB i can not found noise source when i drive out all of the device from PCB i have that noise again in my circuit may be this noise is ground...
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    verilog-a AND low power design

    low power design verilog hi any one know a paper about low power design by verilog-A or verilog-A rules to make codes low power.
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    need help about "MFT" "LO" "IFT&quo

    hi please tell me about MFT or IFT or IF or LO this are rf transistor and have black or red or yellow or green i want to know about them and diffrence thank
  8. A

    Help me with IF Amplifier design!

    IF Amplifier Hi I want to design an if amplifier by it osilate if any one have a circute aboute it please help me (which i disign is crictcalaly stable ) so thanks
  9. A

    Problem with AVR309 firmware

    Hello, I need to comunicate the ATMega8 to a PC using the USB port. But I have some trouble with it. I want to use AVR309 but it is frimware does not work and pc can't identifi it. Please if somebody has more experience on this, help me. So thanks A.A.B.S
  10. A

    How can I simulate an if?

    help to simulat an if hi every body i want to know how i can simulate an if thanks
  11. A

    old toshiba 5200 orang gas pelasma datasheet

    orang gas can anyone tell me where i can find old toshiba 5200 orang gas pelasma datasheet thanks
  12. A

    What are differences between frequency and phase modulation?

    Re: FM vs. PM thay have same teory in one of them variabe is f and in the other variabe is Φ
  13. A

    Wich editor to use for VHDL?

    modelsim editor codewright I use ALDEC editor.it is very good . and multisim have a VHDL editor
  14. A

    req: C programming help

    #include <stdio.h> void main(void) { int a; int b=1; while(b <= 10) { a=1; while(a <= b) { printf("*"); a++; } printf("\n"); b++; } }
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