Hello James,
With a 3ns rise time one would ideally like a BW of 0.35/3 = 116MHz. The BW of a transimpedance amplifier is based on a couple of factors:
1. The photodiode capacitance. (The higher this capacitance the lower the BW when all other parameters…
Other Parts Discussed in Thread: THS3001 , THS3091 , OPA847 Hello,
I'm now working on a project of designing the low-noise circuit with OPA847,THS3091,THS3001. When input is grounded, the output noise Vp-p must be less than 40mV. I have tried many…
Dear Mr Chun,
Amplifier suitable for a low noise receiver applications are OPA820, OPA846, OPA847 for single-ended application, OPA2822, OPA2846 and OPA847 for fully differential applications.
Could you provide more details on your specification…
Muhammad,
I noticed that the Fault condition of your current generator is set to "OFF", and this is causing the null response you are seeing. Changing this setting back to "None" should give you valid results.
More generally, for a low transimpedance…
Joel,
The OPA847 is a rather sensitive device, it would be best to solder the device directly on a board and avoid bread-boarding at all cost.
In non inverting configuration, the minimum gain stable is 12V/V, with a flat frequency response for 20V…
Other Parts Discussed in Thread: THS7530 , OPA847 THS7530 has output reversal when input gets closer than 1.5V to rails (0-5V). A single pulse input will give a double pulse output. The input comes from an OPA847 +/-5V rails, AC coupled to the THS7530…
Kalpit Jha,
I will forward the thread to the Fiber Communication Section of the TI E2E Support Community for your question about spice models for ONET2591.
The THS4304 and THS3201 are not popular parts for TIA. We get more design ins to TIA with…
Other Parts Discussed in Thread: OPA657 , OPA847 Dear all,
I use opa657 and opa847 as photodiode’s TIA(bandwidth from 30M to about 100M). But I found one thing that I do not know the name of this effect.
The signal has two parts, a large signal…
Hi my customer would like to change tteh part since he need only a gain of 2.
Comment from Customer:
In our application we have a gain of two and therefore I will replace the OPA847 by an OPA690.
What do You think about this?
