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  • RE: TPA321: Part substitution search due to Bluetooth EMI.

    Hi Joshua, Perhaps a precision op amp would fit better in terms of EMIRR. OPA188 could be an option. There is also some documentation on this matter: www.ti.com/.../sboa128a.pdf Best regards, -Ivan Salazar Applications Engineer - Low Power Audio…
    • Answered

  • RE: TINA/Spice/OPA4188: Convergence issues with even simple circuits using OPA4188

    Resolved
    I'm not skilled enough yet in TINA-TI Spice to know how to incorporate a model downloaded from the TI website. I downloaded it OK - it's an unzipped folder on my desktop with 3 files in it: OPA188.lib, OPA188.tld, and OPA188.TSM

  • RE: Phase Margin issue

    Hi Kai, It is still the same circuit but with other opamps( opa365, opa189) : https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/1168359/opa277-opa188-oscillation-issue/4405577#4405577 Thanks, Brian

  • RE: OPA211: The error voltage for OPA211

    HI, Thank you for spending the time revieweing the TI Precision Labs materials. Hopefully, they were of use to you. The equation you stated for the total error is correct keeping in mind that the errors contibuted by Ib, Vos, and Vos_CMRR have polarities…
    • Answered

  • OPA4188: Output distortion

    Resolved
    Part Number: OPA4188 Other Parts Discussed in Thread: OPA188 , TINA-TI , OPA4192 , OPA2189 , OPA189 , OPA4170 , OPA4191 , OPA191 , OPA170 Hi, I've designed an input signal conditioning circuit using OPA4188 as shown in the figure below: The input…
    • Resolved
    • Answered

  • RE: TIPD107: Need to modify the circuit for 12V compliance voltage

    Resolved
    Hi Krishna, It sounds like you want VIN = 0-12V, IOUT=0-1024uA. I followed TIPD107 and changed the components to work for VIN=0-10V and IOUT=0-1024uA. This was your initial request. Please follow the design to get your design requirements. You may…
    • Answered

  • OPA4188: Noise Analysis

    Resolved
    Part Number: OPA4188 Other Parts Discussed in Thread: OPA188 OPA4188_config1.TSC OPA4188_config2.TSC OPA4188_config3.TSC Hi, I was performing noise analysis on below circuit using different configurations and hoping to match with the hand calculations…
    • Resolved
    • Answered

  • OPA172: Operating Temperature Range

    Resolved
    Part Number: OPA172 Other Parts Discussed in Thread: OPA188 , OPA4171 , OPA2209 Hi, As per datasheet, the specified temperature for OPA172 is -40 to +125degC. What is the operating temperature of OPA172 ?. Following is an extract from the OPA172…
    • Resolved
    • Answered

  • RE: Accurate OP AMP at DC with low offset

    Resolved
    Hi Anthony, Are there any slew rate requirements? TI has many such selections to meet the above requirements, such as OPA192, OPA191, OPA188, OPA189, OPA333, TVL333, that come to mind. I see that your BW is low in the attached schematic. Best, …

  • CCS/TMS320F28377D: DAC output voltage

    TI Thinks Resolved
    Part Number: TMS320F28377D Tool/software: Code Composer Studio Dear team, I found the DAC output voltage range is 0-3V. Can I use the op amp to change the voltage output range to -5V to +5V without using an additional DA chip? Is there any problem…

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