Question about opamp design

Oct 22, 2008 3 Replies

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silusilusilu 17 years ago

I should design an opamp transimpedance amplifier as homework, but i have some doubts:

1) if current signal is an impulse (of positive value) generated every
10ms (for example), is it right to put the first pole of open loop gain at frequency higher than (1/10)KHz?Or i shoud put the first pole at frequency higher than 10(1/10)KHz (so the phase margin is equal to
180=B0)? I'm interested on voltage output (bacause this should be read by an ADC)...
2)If i want to design an opamp with single supply, other problems (respect to bipolar supply) are present or not? Thanks

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Rich Grise 17 years ago

Me, too. We generally don't do homework unless you pay the current engineering rate (approx. $160.00/hr.).

Good Luck! Rich

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miso 17 years ago

Yeah, but with specifications delivered like those, you wouldn't take the contract. This may be an ESL issue, but I think the customer doesn't know what he wants.

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JosephKK 17 years ago

Wow, you are cheap. My billing rate is over $200/hr.

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