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 am a beginner in TIA design and need some advice.
My target: APD receiver with up to 1Ghz response Using APD: C30737LH-230-90C
Here is my schematic after reading the OPA855 datasheet and trying my think. haven't tested it yet…
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…
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…
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 Hi
I'm a beginner in op-amps, and I've designed a transimpedance amplifier circuit on my own I don't know if the circuit is stable Please help me see what needs to be improved!
Receiver module mainly used for APD laser…
Part Number: OPA855 Hello TI Team!
We have a two-stage transimpedance amplifier circuit for photodiode current conversion. The OPA855 is operating with VS+ at 3.3V and VS- at GND. Following the recommended TIA design, we have an offset voltage on the…
Hello John,
When you mentioned values of C1 and C2, I went ahead and checked AC response of the circuit, and it looks like it could use some fixing/tuning. I am working on this, and would be able to send an updated circuit by end of the week.
For dividing…
Part Number: OPA855DSGEVM Other Parts Discussed in Thread: OPA855
Hi, team,
We bought an OPA855 evaluation board from TI and built a circuit network based on Page 8 of the product manual (VS+ = 2.5 V, VS– = –2.5 V, VIN+ = 0 V, RF = 453 Ω, Gain = 7 V/V…
Part Number: OPA855 Other Parts Discussed in Thread: OPA380 , OPA830 , TINA-TI Hi,
I found Pspice model for OPA855, when I import it into ADS software, it complete, but when I excute simulation, there's wrong message named "ADS syntax parser error in ADS…