Part Number: OPA855 The PCB for the TIA circuit is designed as a 4layer board: the top layer holds components and routing, Layer 2 is a solid ground plane, Layer 3 is a power plane, and the bottom layer is also a ground plane.
See the attachment for…
Part Number: OPA855 Hello.
The circuit is being reviewed using OPA855 (G=7V/V).
1. In the circuit below, the output(PD_OUT2) does not come out normally when +100 mV is input to the IN-(PD_IN2) port. 2. VIL=+1.1V (typ) on Datasheet, is it a problem…
Part Number: OPA855 Hello,
I’m having trouble using the OPA855 PSpice model downloaded from the Texas Instruments website.
Even with very basic test circuits (for example a simple non-inverting amplifier), the simulation results don’t make sense.…
Part Number: OPA855 Other Parts Discussed in Thread: OPA695 Hi TI Support Team,
I am currently working on an optical receiver design and observing a very specific, non-linear saturation behavior on my signal chain. I would like to get your insights…
Part Number: OPA855-Q1 Other Parts Discussed in Thread: OPA855 Hi
I saw the recommended power supply range is 3.3V~5.5V for OPA855 in datasheet, looks it is hard to use 3.3V to power OPA855, a little drop on power line will be over the spec, is the…
Part Number: OPA855
Tool/software:
Hello,
I'm trying to design a Homodyne Balanced Detector using OPA855. I'm using two photodiode with bandwidth 145MHz and 12pF capacitance generating 900uA/1mA photocurrent each. I'd like to read the current generated…
Part Number: OPA855 Tool/software: Hello TI Team,
I am currently working on a high-speed transimpedance amplifier (TIA) circuit using the OPA855 , and I’ve encountered unexpected oscillations at the output. I’m seeking your support to help understand…
Part Number: OPA855 Other Parts Discussed in Thread: OPA858 Hi,
I am looking for some design implementation of optical receiver for 10nA pulses on the photodiode. I was planning to design TIA as a first stage, then second voltage amp stage. Ideally…
Part Number: OPA855 Other Parts Discussed in Thread: OPA858 , OPA838 Tool/software: Hi,
I am trying to design AC-coupled TIA for two germanium-on-silicon waveguide photodiodes (Cd = 10-50 pF, Rs=1-10 MOhm) in a balanced configuration.
I need a TIA…
Part Number: OPA855 Other Parts Discussed in Thread: OPA830 , LMH6611 Hello, E2E
I'm jonghyn
I want to design howland current pump using TI product. so i download PSPICE for TI and simulate it.
My design target is maximum 0.75mA +- 0.75mA (1kHz…
