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  • THS4631: Protection of OpAmp against overvoltage

    TI Thinks Resolved
    Part Number: THS4631 Other Parts Discussed in Thread: OPA810 Hi Team, Good day. Our customer is designing a protection circuit against short term overvoltages of a Howland current source realized around a THS4631 OpAmp. According to the datasheet…

  • THS4631: input bias current

    Part Number: THS4631 Hello Support team, I want to know more detail regarding below post. THS4631 input bias current - Amplifiers forum - Amplifiers - TI E2E support forums I've built a circuit similar to the one in the previous question. …

  • THS4631: input bias current

    Part Number: THS4631 Other Parts Discussed in Thread: THS4531 Hello Support team, I want to know more detail regarding below post. Could you let me know about more detail structure what ESD diodes used to protect the input from differential over…
    • Answered

  • THS4631: Oscillations observed in the unity gain configuration

    Resolved
    Part Number: THS4631 Our design uses THS4631D Op-Amps. In two of the instances of the unity gain configurations, the output is oscillating. Output is connected to a trace of < 100pF (10”) which is not terminated at the far end. The far end is connected…
    • Resolved

  • THS4631: settle time

    Part Number: THS4631 Other Parts Discussed in Thread: OPA810 , OPA857 , LMH32401 Hi sir, I have a technical problem on ths4631. when testing the output port, the difference between the test value of 1us and that of 51us is 14uv. How to modify the…

  • RE: THS4631: Closed loop Gain stability at 1MHz

    Hi Tatarao, a DVM can show a huge input capacitance destabilizing the THS4631 by too high capacitive output loading. This is often overlooked when connecting a DVM directly to the output of OPAmp without introducing a suited isolation resistor. Usually…
    • Answered

  • THS4631: Oscillation at low gain differential configuration

    Resolved
    Part Number: THS4631 Other Parts Discussed in Thread: TINA-TI Hello, I am using the THS4631 configured as a differential amplifier with very low gain = 1/40 = 0.025 and high resistance values, which might be the cause of the oscillation I am seeing…
    • Resolved
    • Answered

  • THS4631: Recommended decoupling capacitor for Vs

    Resolved
    Part Number: THS4631 Other Parts Discussed in Thread: OPA810 , , OPA656 Hi Experts, There are several explanation about recommended decoupling capacitor for Vs on the datasheet. P14: Minimize the distance (< 0.25”) from the power matched impedance…
    • Resolved
    • Answered

  • THS4631: THS4631-based integrator output operation's large delay

    Resolved
    Part Number: THS4631 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, R1 is 100 ohms, which leads to high output voltage slopes…
    • Resolved
    • Answered

  • THS4631: About the effect of R3 in peak detector

    Resolved
    Part Number: THS4631 Dear Ti expert, I consulted you a problem about the configuration of peak detector several months ago. e2e.ti.com/.../940064 I followed the circuit shown by Kai in the thread above, and it worked perfectly. When I remove…
    • Resolved

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