Part Number: OPA857EVM-978 Other Parts Discussed in Thread: OPA857 Hello,
I am getting 0 Volts at OUTN and OUTP pins in both the TEST and APD mode. Vcc is 3.3 Volts. Ideally, I should have got 1.83 V at the OUTN pin.
Regards,
Amar
Part Number: OPA857EVM Other Parts Discussed in Thread: OPA857 , Hi Experts, My customer had a question about OPA857-evm product. He purchased 2 of them and it worked. However, there was a power glitch in their building and the evm stopped working. Just curious…
Part Number: OPA857EVM-978 Other Parts Discussed in Thread: OPA857 , To evaluate the OPA857 I purchased a OPA857EVM-978 board but I am a bit confused by the output configuration of the board. First of all my board had R15 installed and not R14. So there was…
Hello Mark,
Sorry for the delay in the response. They should be getting around 900mV at OUTN (OUT-) which will not be affected by the input signal, since this is the reference voltage. Do they have R7 populated with the 56 ohm resistor?
Thank you,
S…
Part Number: OPA857EVM-978 Other Parts Discussed in Thread: OPA857 , OPA858 , OPA855 , OPA859 Number: CS0300295 Contact: Andrea Papi First name: Andrea Last name: Papi Short description: TIA Design for PMT Tube Phone: 003907558527543907 Email: andrea.papi…
Part Number: OPA857EVM-978 Other Parts Discussed in Thread: OPA857 I'm trying to figure out the test mode right now, and the connection is as follows and I've attached a pic for the board:
I've connected the TEST_SD pin to Vs to configure in test…
Hello Jakub,
Sorry about the confusion, attached is the step file for the board. The OPA857EVM-978 is the same board as our reference design TIDA-00978. You will find all the design files on the reference design page.
EVM Step File.zip
Best,
Hasan Ba…
Part Number: OPA857EVM-978 Other Parts Discussed in Thread: OPA857 Hello,
I want to use the OPA857EVM-978 in the photodiode mode with a SM05PD1A Silicon photodiode.
Test setup - Evaluate the performance of the OPA857 in the standard photodiode input …
Part Number: OPA857EVM Other Parts Discussed in Thread: TIDA-00725 Tool/software: TI-RTOS Hi,
I am using TIDA-00725 Signal-Chain Circuit, can anybody please tell me what is value of R28 in BOM?
Thanks
Ahsan