Part Number: OPA637 Hi, the OPA637 gives the following application circuit, I don't quite understand what is the role of the 3pF capacitor, is it to play the role of phase compensation, how is its value calculated, and how to consider the stability of…
Hi Hi Nafisa,
NAFISA A said: How can I do simulation If I want to know the behavior of these two circuits?
Could you tell me how the photo detectors are triggered in the setup? I need to know how the circuit is operating. Picture would help. What does…
Hi Karthick,
Can you tell me more about what you are trying to do with this circuit? Does it have a problem you are debugging? This is a large circuit, in order to help break it into blocks to understand it better, we would need to know what you are measuring…
Part Number: OPA637 Other Parts Discussed in Thread: OPA2132 , , OPA627 , OPA37 , OPA828 The following figure parameters, Part of IV. There was no noise when using OPA627 or OPA2132 before. When using OPA637, if the gain was too large, the signal would be…
Part Number: OPA637 Hi
I am using an OPA 637 in transimpedence amplifier configuration. According to the datasheet, this opamp is stable for gain>5. I am using a feedback resistor of 300K. The photodiode capacitance Ci is 10pF. However, I am getting…
Part Number: OPA637 Other Parts Discussed in Thread: OPA627 Hi Team,
Customer is asking why GBP (80MHz) of OPA637 list in the datasheet does not correlate with our graphs?
The best I can tell is just about 60MHz.
How to read GBP from the graph then? Please…
Other Parts Discussed in Thread: OPA637 Dear Forum,
I am trying to implement a typical transimpedance amplifier to amplify the current from a photodiode using an OPA637, as shown below. However I am getting rail to rail square wave oscillations. I am powering…
Other Parts Discussed in Thread: OPA637 HI everyone, I will be happy to get some help with a simulation from pspice project I am doing. I assembled a scheme witch gives me gain of approx. 40DB My FL is approx.. 6KHZ and FH approx. 600KHZ. But i have a problem…
Other Parts Discussed in Thread: OPA637 , TINA-TI Hello,
Here is a post from another forum related to the OPA637, noise analysis using TINA-TI, and the effect of low frequency Noise Analysis on SNR, for reference:
http://e2e.ti.com/support/development_tools…
![[FAE] Andrew Wang](https://e2e.ti.com:443/cfs-filesystemfile/__key/communityserver-components-imagefileviewer/communityserver-components-avatars-00-00-07-45-83/4TN3ECJKFL7N.jpg_2D00_24x24x2.jpg?_=638280151088694360)
