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Dennis Feucht

Seemingly Simple Circuits: Transresistance Amplifier, Part 2--Transimpedance Amplifier Dynamics

Circuit that Avoids Large Feedback Resistor
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SoccerMike
7/18/2018 12:59:41 PM
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Well derived analysis but needs Part 3
Dennis,

Your two-part Transimpedance Amplifier Dynamics article is written clearly with the goal of the readers being able to use your final derivations.  It's been a number of years since I was paid to implement a Transimpedance Amp circuit (which worked very well though not as fully analyzed as you have done here.  To not scare away new mixed-signal engineers, I would propose a Part 3 to demonstrate a real world usage of these equations.  It doesn't have to be complicated. There are only a handful of parts involved.  I wouldn't include complications introduced by various op-amps.  Thanks  again for a stimulating analog article,

mike in Goleta

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D Feucht
8/8/2018 12:38:35 AM
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Re: Well derived analysis but needs Part 3
Mike,

Thanks  for your comments and suggestion. There actually is a Part 3, of sorts: a previous article titled "Case Study: Medical Laser System; Part 2: Photodiode Amplifier" along with Parts 3 and 4 that cover the dynamics.

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