Hi Gerald,
the "OPA837.LIB" file which you can find here
OPA837 TINA-TI Spice Model (Rev. B)
can easily be imported into LTSpice:
gerald_opa837.zip
Also read this guidance on how to import a "*.LIB" file into LTSpice:
https://e2e…
Hello Conor,
The first figure shows the front-end receiving circuit using the OPA607 for high input impedance input and the following it with the OPA837 as a variable gain mux / PGA and bandpass filter as shown in reference design TIDA-01565. The second…
Part Number: ADC3663EVM Other Parts Discussed in Thread: ADC3663 , OPA837 , REF3318 , LMK04828 Hello,
I`m trying to replicate one of the figures of the ADC3663 datasheet, to be sure my setup is right. Concretely, I'm trying to replicate figure 6-40, Single…
Part Number: LMP7704-SP Other Parts Discussed in Thread: LMP7704 , , OPA837 Hello,
I am looking for the TINA model file that is presented in SNOAA75A (Space-Grade, 100-krad, 125-kHz Photodiode TIA Circuit),
A snippit from the pdf is shown below.
Thank…
Well Jan, 1st we have to address stability issues. when you say source current, what is its capacitance. the OPA838 is not unity gain stable, if you have pushed it into oscillations that might be your issue, the OPA837 is the drop in unity gain stable…
Perhaps the same query as this one? Follow this one along if so,
https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1037940/lmh6628qml-sp-redundant-buffer/3837692?tisearch=e2e-sitesearch&keymatch=opa837#3837692
Hi Pedaiah,
+/-3.3V supplies and 0.5V output common mode is fine, the resistor values were chosen to give a gain of -0.4 (G= -Rf/Rg) to take your 2.5V signal down to 1V.
I will attach the following simulation using the new rails and Vocm:
For more information…
Other Parts Discussed in Thread: OPA837 Hi engineers, for deepen understanding of op amp parameters, I want to build different test circuits for various op amp parameters, but the datasheet just introduce some test condition, so I need some document which…
Hi Mike,
Thank you for quick reply. OPA837 input range is +-1V, so I will have to rescale my input. But its good that it allows multiplexing. Thank you for help.
Regards,
Vishal