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  • OPA228: The attenuation problem of OPA2228UA

    TI Thinks Resolved
    Part Number: OPA228 Other Parts Discussed in Thread: OPA1612 Tool/software: We used an OPA2228UA operational amplifier, with a 5x amplification. The operational amplifier was powered at ± 14V, and a differential component input was added to the preamplifier…

  • OPA228: Voltage adjustment in cyclic voltammetry circuit

    Part Number: OPA228 Other Parts Discussed in Thread: OPA2197 , OPA828 , LMP7721 This is a circuit of cyclic voltammetry in which all three electrode i.e. WE (Working Electrode), CE(Counter Electrode) & RE (Reference Electrode) are dipped in electrolyte…

  • OPA228: Op amp used in cyclic voltammetry application

    TI Thinks Resolved
    Part Number: OPA228 Other Parts Discussed in Thread: TIDA-00854 , OPA197 , OPA2197 , ADS1115 In cyclic voltammetry application (as per circuit design given in image), the voltage difference between reference electrode (RE) and working electrode (WE…
    • Answered

  • OPA228: Bias and temperature drift Questions

    Resolved
    Part Number: OPA228 Other Parts Discussed in Thread: LM741 , TL1431 , OPA227 , OPA197 I am using an OPA228 as a comparator. I use 1 OPA228 with a bias voltage of +15V on the +V pin and grounding the -V pin. I use a second OPA228 with a bias voltage of…
    • Resolved
    • Answered

  • OPA228: How to trade off gain and bandwidth?

    Resolved
    Part Number: OPA228 Other Parts Discussed in Thread: LMP7717 , OPA838 Hi , Customer's product is a high accuracy ac power line quality analyse equipment. They want to know whether the GBW is always constant in any condition? They sch have 4 stage…
    • Resolved
    • Answered

  • RE: WEBENCH® Tools/OPA228: Can't open my designs in Firefox (flash support) , can't see them in Chrome

    Resolved
    Hi Alfred Could it be that single supply opamps are not proposed ?. Or why is the OPA228 that I used for my previous design is not in the candidate list ? Thanks Peter
    • Answered

  • RE: OPA228: i have to remove "Gain peaking" without changing circuit

    Resolved
    Hyunwoo We haven't heard back from you so we assume this resolved your issue. If not, just post another reply below. Thanks Dennis

  • Opa228 distortion at some frequencies

    Other Parts Discussed in Thread: OPA228 , OPA227 , TINA-TI Hi, I would like some advice regarding the OPA228 op-amp. I am using the opamp in a preamp project that I am currently working on. It is configured as a non-inverting with a gain of 4.4 by…

  • OPA228 as oscillator

    Other Parts Discussed in Thread: OPA228 Hi, I'm currently using OPA228 as sine wave oscillator (Wien-bridge) . And here are several dumb problems that bugs me for a while. 1. There are some spikes on both positive and negative side of output wave…

  • OPA228 power filter noise problem

    Other Parts Discussed in Thread: OPA2228 , OPA2227 Hi, We use power filter based on OPA2228 to power the high sensitivity transimpedance amplifier. The filter is shown in the picture below. Since the transimpedance amplifier has the input stage based…

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