Other Parts Discussed in Thread: OPA846 , TINA-TI Hi All, We'd like to ask the measurement of phase margin and gain margin on OPA846. <Question> Please refer to attached file.This is the result of phase and gain simulation using OPA846. 2678.Phase…
Hi Minglai, We have six amplifiers available in DIE form: OPA857-DIE, OPA656-DIE, OPA657-DIE, OPA846-DIE, THS3001-DIE, and OPA2835-DIE.
The OPA2835-DIE is a dual amplifier, with Iout= 40mA max, and supports a Vs=3.3V.
Hi Sima,
Thanks for your recommendations and the powerpoint.
Actually, there is no amplification stage before opa846. When a photon avalanche occurs, the current flows to the shunt resistor (Rs).
Here i leave a basic photo of how it is at the moment(withouth…
Part Number: OPA828 Other Parts Discussed in Thread: OPA3S328 So I had gotten involved in what is out there in compensating a transimpedance design, There is a newer one I will mention at the end that seems very accurate, wondering what equation sits…
Other Parts Discussed in Thread: OPA846 Hi everybody,
I'm using an OPA846
for a transimpedance amplifier. I would like to simulate my system
using PSpice, but I get an error. I've tried to simulate it with other amplifier models and it works.…
Hi Luis,
Vin would be 12V maximum, but typically 6V. So the max Vcm is around 12V.
Of course the BW should be the highest possible, but with 5Khz we should be good.
Fast switch is only needed to minimize voltage drop on 10 Ohm resistor. Typically use…
Part Number: OPA552 Other Parts Discussed in Thread: TINA-TI , OPA657 , OPA846 , OPA847 , OPA837 We would like clarification on section 8.2.2.3 of the corresponding (OPA55x) data sheet. It is poorly written, and we can not decipher the "formulae" for determining…
Part Number: ONET2591TA Other Parts Discussed in Thread: OPA657 , , OPA843 , OPA846 , OPA847 I found an application note, sboa122.pdf that discusses how to calculate the maximum achievable bandwidth for TIAs. It uses the OPA847, OPA846, OPA843 and OPA657…
You are of course kidding me Paul,
Your example circuits are transimpedance designs where the source C is a big part of the response equations.
And actually, if I had to guess I would bet they are under 10pF and what I would probably due (lacking this…