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  • OPA140: EMIRR of OPA140

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    Part Number: OPA140 Other Parts Discussed in Thread: OPA2140 Greetings. The datasheet of OPAx140 introduces relevant information about EMI Rejection, but the figure 7-6 OPA2140 EMIRR provided in the datasheet describes dual-channel OPA2140 EMI Rejection…
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  • OPA140: OPA140 Tina simulation

    TI Thinks Resolved
    Part Number: OPA140 Hi, I try to use OPA140 to design my circuit. When I build a inverter amplifier, the result looks not correct. I am not sure it is because of the supply voltage for omamp too small. When I increase to ±10V, it looks work well.…

  • OPA140: opa140

    Part Number: OPA140 Tool/software: Hi Alec, Thank you very much for your detailed response, and apologies for the delay in getting back to you. The project is currently on hold and may be moving in a different direction, so we won’t be needing an op…

  • OPA140: Two stage carge amplifier for piezoelectric sensor: second stage Gain breaks down at higher amplification

    TI Thinks Resolved
    Part Number: OPA140 Other Parts Discussed in Thread: OPA2828 Hi Experts, Can you help with the inquiry below? I have to design a charge Amplifier for a piezoelectric Sensor. The sensor capacity is between 30 and 50 pC, amplification should be at least…

  • OPA140: 1/f Current Noise of OPA140 Opamp

    TI Thinks Resolved
    Part Number: OPA140 Tool/software: Hello, We are working on a very sensitive amplifier to interface with a high impedance sensor. I discovered that the datasheet and the simulation model doesn't include the current 1/f noise. We need to make sure…
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  • OPA140: Feeback Factor (β) of TIA

    Resolved
    Part Number: OPA140 Tool/software: App Note Dear All, I came across a Burr-Brown application note from February 1994 (SBOA060 – Noise Analysis of FET Transimpedance Amplifiers ), which presents a detailed noise analysis of a transimpedance amplifier…
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  • OPA140: TRANSIMPEDANCE AMPLIFIER

    Part Number: OPA140 Tool/software: Hello All, I am trying to build a transimpedance amplifier for capacitive sensor. This sensor captures 50Hz power frequency signal by capturing E field created. that being said, the sensor´s presence did not changed…
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  • OPA140: Standard Deviation of Input Offset voltage drift

    Resolved
    Part Number: OPA140 Tool/software: Team- The OPA140 lists typical input offset voltage drift as typically +/-0.35 uV/C with a max of 1 uV/C. What is the mean and standard deviation of this parameter? Thanks! -Steve
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  • OPA140: Duplicate settling plot? OPA140

    Resolved
    Part Number: OPA140 Just noticed these two plots, what is the difference between them in conditions?
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  • OPA140: The input limitation of OPA140

    Resolved
    Part Number: OPA140 Other Parts Discussed in Thread: DIYAMP-EVM Hello, I would like to ask, when testing the OPA140EVM board, the power supply is a tracking circuit, and Vcc is a plus or minus 5V power supply. When Vin=4.5V, it dose not meet the range…
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