Other Parts Discussed in Thread: INA105 , OPA381 Dear TI team,
I'm choosing Op Amp for transimpedance amplifier for photodiode in pirometr. I choosed configuration from fig.10 in http://www.ti.com/general/docs/litabsmultiplefilelist.tsp?literatureNumber…
Other Parts Discussed in Thread: OPA381 , ADC121S021 Hello to all,
I am having a stability problem with the OPA381 op amp, which is I am using to measure the photo diode current from 500nA to 3uA. The photodiode (Hamamatsu S1223) capacitance is 10pF…
Hi Chuck,
Thank you for cover up and proposal of integrated solution.
Hi Sameer,
As per your circuit, let me share TINA-TI simulation result for different op amps. I will recommend OPA381 in terms of phase shift frequency and low input bias current…
Hi Umar,
If I understand what it is that you are trying to accomplish (PSD input) what you are basically looking for is a trans-impedance amplifier (TIA). Take a look at the OPA381 and let us know if this will suit your needs.
Hi Mr. John,
Thank you very much for your answer.
In your setup, could I use a single supply amplifier? I forgot to tell you that, I was considering to decouple the sine wave (or square wave as suggested by Mr Bruce) with a capacitor, so that the…
Other Parts Discussed in Thread: OPA381 , OPA830 , TS5A3160 , OPA333 Hi,
I'm using an OPA381 as the first stage of a pulse oximeter amplifier similar to the circuit in this app note SPRAB37 and shown below. Its output goes unstable as I increase LED…
MJ,
Since you are only looking for 0-3V out, I would recommend sticking with the single supply strategy as it stands the best chance at meeting your power and performance needs. Here is a possible starting point for you. If you truly need 100kHz bandwidth…
Other Parts Discussed in Thread: OPA381 Hello,
I am looking to design an analog front end similar to the input of an oscilloscope. I have been able to get a simulation working in TINA TI, but the design is *not* single supply and requires numerous…
The OPA145 also looks like a good choice, this file has not been recently updated so the OPA196 is not in yet, and the pricing is out of date.
OPA111A options.xlsx
