Part Number: OPA855 Other Parts Discussed in Thread: OPA858 Hi Team, I'm experiencing Bias issues when using Models from the OPA855 Unencrypted PSpice Model Package (Rev. D).
As shown in Fig. 1, it is an inverting amplifier with a gain of -10 V/V…
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 Hello,
I want to design an active high pass filter using OPA855 which starts amplifying arounf 45MHz and stops around 100MHz. I tried Sallen-key topology first but I faced some issues, then changed it to a simple High pass. It seems…
Part Number: OPA855 Other Parts Discussed in Thread: OPA858 , I am trying to develop a transimpedance amplifier for SiPM/MPPC silicon photomultipliers. I need wide bandwidth and low gain. I developed a system based on OPA855. In practice, OPA858 seems to…
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…
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: 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…
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…