Part Number: OPA858DSGEVM Hi,
I purchased an OPA858DSGVEM board recently.
I tried to connect Split sources, GND, and keep J4 on.
I only used the Negative input (J1) and make the Positive side(J2) floating.
Unfortunately, I cannot get anything from the…
Part Number: OPA858DSGEVM Other Parts Discussed in Thread: OPA858 , OPA859 Hi,
In the layout of evaluation board of OPA858 and OPA859, what is controlled trace impedance and type of the main signal trace? Which of the following is it?
1)50ohms normal single…
Hello Shine,
You may use a 500Ohm gain factor instead of the 1.5k. Using the TIA calculate above, the resulting Cf is at least 250f which will give you above 1GHz BW without accounting for additional parasitic on the board.
Using Kai's simulations:…
Part Number: OPA858DSGEVM Other Parts Discussed in Thread: OPA858 Hi,
I purchased an OPA858DSGEVM from TI recently. But when I connect the power supply and without using the header for J4, I'm getting the Power supply voltage 3.3V at pin-8 (PD). But in…
Part Number: OPA858DSGEVM Hi,
I purchased an OPA858DSGEVM from TI recently. I would like to design a stable transimpedance amplifier using this evaluation board. Please find below the photodetector specifications:
1)capacitance: 650fF
2)maximum current…
Part Number: OPA858DSGEVM Other Parts Discussed in Thread: OPA858 Hi there,
This may seem like a simple question, but I was wondering if you would be able to indicate what the maximum possible amplification on the OPA858 is. I have it configured to provide…
Part Number: OPA858DSGEVM Other Parts Discussed in Thread: OPA858 Hi there,
I was hoping to get help with the OPA858 amplifier.
Initially it was included in the PCB layout to be used as a Transimpedance amplifier, but now there is a plan to use it as…
Part Number: OPA858DSGEVM Other Parts Discussed in Thread: OPA858 , Hi there,
I acknowledge that this may seem like an obvious question but I was wondering if I could get assistance with testing out the OPA858 amplifier as a Transimpedance amplifier. I…
Part Number: OPA855DSGEVM Other Parts Discussed in Thread: OPA858DSGEVM , Tool/software: Hi there,
I recently purchased a OPA855DSGEVM and OPA858DSGEVM to evaluate the amplifier. For both boards, I have the following setup
Vcc = +2.5V
GND = 0.0V
Vee = …