Part Number: OPA855 I would like to create a circuit with a gain of 100 by connecting two OPA855s in series. Could you provide me with a reference for the circuit diagram? The input will be a single 50Ω signal, and both OPA855s will be powered by a single…
Hello Nick,
I have a similar problem. Can you please give me some advice?
I use OPA855 as a TIA. The SIPM's output voltage is 32mV, rise time is 1.3ns, capacitance is 555pF.
I calculate the bandwidth is 270MHz by the equation is rise time (tr)=0.35…
Part Number: OPA855 Hi,
Please see
OPA855: OPA855 Circuit Analysis and Debugging - Amplifiers forum - Amplifiers - TI E2E support forums
Can you confirm that you are driving the input with a 50 ohm impedance input source? If the input source has a different…
Part Number: OPA855DSGEVM Other Parts Discussed in Thread: OPA855 I am designing a board with 4 OPA855 on a 4 layer board.
Looking at the evaluation board layout, it split the power plane and used the upper half for the positive(VS+) and the bottom half…
Hi Anurag,
Can you confirm that you are driving the input with a 50 ohm impedance input source? If the input source has a different impedance, the input will not be properly matched and you will see reflections that will result in distortion or instability…
Part Number: OPA855 Hello, I'm using OPA855 for TIA(transimpedance amplifier) with avalanche photodidoe.
However my TIA circuit has the spikes with laser signals.
(I'm using laser diode '905D1S09S', Laser components. And laser diode driver 'PCO-7114…
Part Number: OPA855 Hello,
I have got a question regarding the Texas Instruments operational amplifier OPA855. For my master thesis in electrical engineering I need to design a wide bandwidth differential voltage probe. For the design process and stability…
Hello Daniele,
I apologize for the very long delay in support. Before I left on vacation, I asked our TIA expert on your proposed method, and he confirmed that he has seen this work in the lab, but not as well as using a low input capacitance PD.
I…
Part Number: OPA855
Hello,
we are about to design a TIA with the OPA855. In the end, we intend to use it together with a high-speed photodiode. We have the eval board of the OPA855 which works perfectly well as long as we use it in standard amplifier…