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  • THS4631: Problems when applying THS4631 in a simple integrator circuit

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    Part Number: THS4631 Other Parts Discussed in Thread: OPA860 , OPA615 , LM7171 Dear TI expert, I design a PCB in which a THS4631-based integrator is used. The circuit is as Fig1. The power supply for 4631 is +16V and -12V, feedback capacitor C2 is 20pF…
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  • RE: THS4631: Amplifiers forum

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    Hi Aamir, it has to do with the input offset voltage and input bias currents of THS4631 which cause an unwanted current flow into the integration caps. Kai
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  • THS4631: THS4631 offset voltage

    Resolved
    Part Number: THS4631 Hi Jacob, If THS4631 using single power rail VS+ 24V/ VS- 0V, offset voltage is 0.3V. if using dual power input VS+ 12V/ VS- -12V, the output offset voltage is less than 5mV. Customer is currently using AD8065. Do you have any suggestion…
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  • RE: TINA/Spice/THS4631: THS4631

    Here is another article that you will find useful: e2e.ti.com/.../trust-but-verify-spice-model-accuracy-part-6-voltage-noise-and-current-noise
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  • THS4631: THS4631 offset voltage drift

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    Part Number: THS4631 Other Parts Discussed in Thread: THS4531 Testing In ths4631 EVM, when the input voltage of the chip pin is 0V, then measured the output voltage is 0.3V. What is a good solution to compensate the drift offset voltage? thank yo…
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  • THS4631: AOL vs Temp

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    Part Number: THS4631 Hi Team, Quick question from customer, do we have AOL vs Temp bench data for this device? Thanks. Andrew
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  • THS4631: What is the simplest way to realize such an analog switch

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    Part Number: THS4631 Dear TI colleague, I want to realize the typical resettable integrator based on THS4631 as the Figure below. But I have doubt about what is the simplest and cheapest way to realize the analog switch SW below? The 4631 is powered…
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  • RE: THS4631: Common-mode input range

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    Hello Chris, Yes, your assumption is correct. Below, I have attached a snippet from the THS4631 datasheet of the recommended operating conditions: The difference between V- and V+ can not be lower than 10 or greater than 30. Therefore, there is no…
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  • THS4631: About the analog integrator based on op amp

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    Part Number: THS4631 Other Parts Discussed in Thread: ACF2101 Hi TI expert, My problem is as the figure below. Based on my application, I need to find a subcircuit or component, denoted as A. A can be controlled by FPGA/CPLD. When FPGA makes A conduct…
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  • THS4631: Derivation of some formulas and the GBWP for the TIA

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    Part Number: THS4631 Other Parts Discussed in Thread: THS4561 Hello, I have been trying to design a TIA (Transimpedance amplifier) with a THS4631. According to the THS4631 datasheet, there are formulas which calculates the values of the TIA. However…
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