TI E2E support forums
TI E2E support forums
  • User
  • Site
  • Search
  • User
  • E2E™ design support >
  • Forums
    • Amplifiers
    • Audio
    • Clock & timing
    • Data converters
    • DLP® products
    • Enterprise Automation Integration
    • Interface
    • Isolation
    • Logic
    • Microcontrollers
    • Motor drivers
    • Power management
    • Processors
    • RF & microwave
    • Sensors
    • Site support
    • Switches & multiplexers
    • Tools
    • Wireless connectivity
    • Archived forums
    • Archived groups
  • Technical articles
    • Analog
    • Automotive
    • DLP® technology
    • Embedded processing
    • Industrial
    • Power management
  • TI training
    • Tech days
    • Online training
    • Live events
    • Power Supply Design Seminar
  • Getting started
  • 简体中文
  • More
  • Cancel


Search tips
Showing 24 results View by: Thread Post Sort by
  • OPA857EVM-978: 0 Volts at OUTN and OUT pin in both Test and APD mode.

    Amar Gaikwad
    Amar Gaikwad
    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
    • 8 months ago
    • Amplifiers
    • Amplifiers forum
  • OPA857EVM: EVM stopped working

    Gerald
    Gerald
    TI Thinks Resolved
    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…
    • over 1 year ago
    • Amplifiers
    • Amplifiers forum
  • OPA857EVM-978: Increase output swing

    Tobias F.
    Tobias F.
    TI Thinks Resolved
    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…
    • over 1 year ago
    • Amplifiers
    • Amplifiers forum
  • RE: OPA857EVM: OPA857EVM Troubleshooting

    SimaJalaleddine
    SimaJalaleddine
    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…
    • over 2 years ago
    • Amplifiers
    • Amplifiers forum
  • Answered
  • OPA857EVM-978: OPA857EVM

    Andrea Papi
    Andrea Papi
    Resolved
    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…
    • Resolved
    • over 2 years ago
    • Amplifiers
    • Amplifiers forum
  • Answered
  • OPA857EVM: OPA857EVM

    Alex Shiffer
    Alex Shiffer
    Resolved
    Part Number: OPA857EVM Hello, What is the difference between the OPA857EVM and the OPA857EVM-978? Thanks, Alex
    • Resolved
    • over 2 years ago
    • Amplifiers
    • Amplifiers forum
  • Answered
  • OPA857EVM-978: Test Mode OUT & OUTN Voltages Doesn't Change with DC Bias

    Xiechen Zheng
    Xiechen Zheng
    Resolved
    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…
    • Resolved
    • over 2 years ago
    • Amplifiers
    • Amplifiers forum
  • RE: WEBENCH® Tools/OPA857EVM-978: OPA857EVM-978

    Hasan Babiker31
    Hasan Babiker31
    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…
    • over 3 years ago
    • Simulation, hardware & system design tools
    • Simulation, hardware & system design tools forum
  • OPA857EVM-978: Why am I getting 0V at both outputs (VOUTN = VOUTP = 0V)?

    Samuel Phiri
    Samuel Phiri
    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 …
    • over 3 years ago
    • Amplifiers
    • Amplifiers forum
  • Answered
  • RTOS/OPA857EVM: OPA857EVM

    Ahsan Waqas
    Ahsan Waqas
    Resolved
    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
    • Resolved
    • over 4 years ago
    • Amplifiers
    • Amplifiers forum
>

Didn't find what you are looking for? Post a new question.

  • Ask a new question
About TI
Company News & events Investor relations Corporate citizenship Careers Contact us
Quick links
TI E2E™ design support forums Customer support center Packaging Quality & reliability TI university program myTI FAQ
Buying
Ordering resources Ordering help & FAQs BOM & cross reference tool Quick add to cart Authorized distributors
Connect with us

Texas Instruments has been making progress possible for decades. We are a global semiconductor company that designs, manufactures, tests and sells analog and embedded processing chips. Our products help our customers efficiently manage power, accurately sense and transmit data and provide the core control or processing in their designs.

Cookie policy Privacy policy Terms of sale Terms of use Trademarks Website feedback

© Copyright 1995-2023 Texas Instruments Incorporated. All rights reserved.