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  • opa659

    Other Parts Discussed in Thread: OPA659 , OPA657 sir, i am designing a very low noise ,low input bias current for an amplification factor of 10000-100000. so i need to cascade 3 opa659 ICs.. So will it work without considerable noise if i use 3 IC (opa659…

  • opa659

    Other Parts Discussed in Thread: OPA659 sir, i have simulated opa659 in a three stage non inverting amplifier,but i am getting an offset voltage of around 5.38volts in the output waveform,....what could be the possibe reasons? what are the ways to eliminate…

  • Input Impedance of OPA653 and OPA659 query.

    Other Parts Discussed in Thread: OPA659 , OPA653 Hi Everyone, I want to Amplify( non-inverting) / buffer high speed sinusoidal signal of frequency upto 100MHz and Amplitude = 4V i.e. 8Vp-p without loading the other circuit components in shunt. For the above…
    • Answered

  • OPA859: 4-pole LPF with two 2-pole Sallen & Key won't simulate properly

    Resolved
    Part Number: OPA859 Other Parts Discussed in Thread: OPA659 , OPA2810 , OPA2822 , OPA858 , , TINA-TI I used the TI Filter Design Tool to get a 4-pole Butterworth design using two Sallen & Key stages. Corner frequency was design at 4 MHz, yet the simulation…
    • Resolved
    • Answered

  • OPA659 TINA-TI Reference Circuit

    Resolved
    Other Parts Discussed in Thread: OPA653 , OPA659 , TINA-TI I notice that in the OPA659 TINA-TI reference circuit there are those mysterious 350 femtofarad capacitors from inputs to ground just like in the OPA653 reference circuit. Is this the input capacitance…
    • Resolved
    • Answered

  • OPA659 Spice Model in Multisim

    Resolved
    Other Parts Discussed in Thread: OPA659 Hi! I have a problem importing the OPA659 spice model into the Multisim part library. When I start a simulation using this part I get the error message "not enough operands for mathematical operator '*'. Expected…
    • Resolved

  • LMP7721: We are looking for the lowest input capacitance (differential) in your product line

    TI Thinks Resolved
    Part Number: LMP7721 Also very low bias current. Goal to measure voltage across a sensing capacitor, displacement of charge. 1 pA bias current or less Cin 1 pF differential very low noise We wish to use this methodology to reduce the Cin https:…
    • Answered

  • RE: DAC81408EVM: Output voltage filtering

    Resolved
    Hi Dragan, Better add high current buffer at output of DAC . You can consider following devices for higher CL loads OPA202, OPA659

  • LM6172: Help with TINA-TI transient output simulation?

    Part Number: LM6172 Other Parts Discussed in Thread: TINA-TI , , OPA659 Team, Could you please help with LM6172/OPA659 TINA-TI transient output simulation? I can send the simulation files off-line. Thanks in advance! A.

  • RE: OPA858: OPA858, is there a part similar to this CMOS high-speed op-amp that works with higher supply voltage rails

    Hello Kenneth, Thank you for the interest in the OPA858. The OPA818 is a good choice, and we also have OPA657 and OPA659. Thank you, Sima

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