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Showing 81 results View by: Thread Post Sort by
    Answered
  • OPA991-Q1: OPA991S: Hi-Z failed during 70 degree temperature test

    Akeem Kennedy
    Akeem Kennedy
    Resolved
    Part Number: OPA991-Q1 Other Parts Discussed in Thread: OPA991 Hi, I'm testing the OPA991S-Q1 in a voltage follower configuration at 70°C. Pulling the shutdown pin to 5V puts the output in Hi-Z, but during testing the op-amp began conducting current…
    • Resolved
    • 3 months ago
    • Amplifiers
    • Amplifiers forum
  • OPA991: Need a suggestion of part for this scheme

    Sumeet Patil
    Sumeet Patil
    TI Thinks Resolved
    Part Number: OPA991 Other Parts Discussed in Thread: ISO224 , OPA992 , OPA192 Hello Ti Team, I have an amplifier requirement per this diagram which was suggested in another TI post: Here is the link to that thread: https://e2e.ti.com/support…
    • 7 months ago
    • Amplifiers
    • Amplifiers forum
  • Answered
  • OPA991: Calculating settling time for different parameters

    Chang Melissa
    Chang Melissa
    Resolved
    Part Number: OPA991 Tool/software: How would I calculate the maximum settling time for Vs= 24V (or +12V, -12V), Vstep= 10V, G=+1, CL to 20pF and to 0.1%?
    • Resolved
    • over 1 year ago
    • Amplifiers
    • Amplifiers forum
  • OPA991: OPA991 outputs abnormally

    Harry Ma
    Harry Ma
    TI Thinks Resolved
    Part Number: OPA991 Other Parts Discussed in Thread: OPA2991 5751.OPA2991_RefDesign.TSC Hi Team I simulated the following circuit and found VF1 has output but Vout doesn't have output. Can you help show your comment why this happen?
    • over 2 years ago
    • Amplifiers
    • Amplifiers forum
  • OPA991-Q1: OPA991-Q1

    Marian Neacsu
    Marian Neacsu
    TI Thinks Resolved
    Part Number: OPA991-Q1 Other Parts Discussed in Thread: OPA991 Hello , I have build an high side differential amplifier using OPA991. In this schematic i have used an offset about 2.5V. My expectation was that if the current is 12A (1 Ohm load…
    • over 2 years ago
    • Amplifiers
    • Amplifiers forum
  • OPA991: Common Mode above 20V

    Keith Keller
    Keith Keller
    TI Thinks Resolved
    Part Number: OPA991 Tool/software: Hello, Just wanted to confirm that the common mode voltage offset is going to remain flat from 20V and above? We're going to be operating at 36Vin. Thank you, Keith
    • over 1 year ago
    • Amplifiers
    • Amplifiers forum
  • INA180: OPA991 + INA180 current loop

    Georges Maccario
    Georges Maccario
    Part Number: INA180 Other Parts Discussed in Thread: OPA991 , TINA-TI Tool/software: Hello, I am working on a current source (100/200mA). To minimise power losses in the shunt, I've chosen to use an INA180 in the feedback loop. The system does not…
    • over 1 year ago
    • Amplifiers
    • Amplifiers forum
  • OPA991: IMDS request (From SIIX comapny)

    ?? ??
    ?? ??
    TI Thinks Resolved
    Part Number: OPA991 Tool/software: Dear PIC Could you input IMDS as follows? 99834-00135 OPA991QDBVRQ1 IC SIIX CORP. Thai SIIX Co., Ltd. [ 107975]. When you done and get ID no, please send us e-mail address…
    • over 1 year ago
    • Amplifiers
    • Amplifiers forum
  • OPA991-Q1: DC-DC switching Noise seen at the output of the circuit

    Shihab
    Shihab
    TI Thinks Resolved
    Part Number: OPA991-Q1 Other Parts Discussed in Thread: OPA991 , TLV888 , OPA827 Hi, I am using following circuit to amplify the output of a Hall Effect current sensor output before supplying in to and ADC. The input and output waveforms are provided…
    • 11 months ago
    • Amplifiers
    • Amplifiers forum
  • OPA991-Q1: Offset Voltage vs Power Supply Graph

    Constantin Calin
    Constantin Calin
    TI Thinks Resolved
    Part Number: OPA991-Q1 Tool/software: Dear Texas Instruments Support Team, I am currently reviewing the datasheet for the OPAx991 40-V Rail-to-Rail Input/Output Operational Amplifier , and I have a question regarding Figure 6-9: Offset Voltage vs. Power…
    • over 1 year ago
    • Amplifiers
    • Amplifiers forum
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