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  • OPA1664: OPA1664 over heat

    TI Thinks Resolved
    Part Number: OPA1664 Other Parts Discussed in Thread: DAC8718 Hi Team, Please see below circuit of DAC output, this circuit is working fine, Please see the net name of VOUT_1...3, If unfortunately, I apply the +24V input on these output pins means circuit…

  • OPA1664: Help in component selection

    Part Number: OPA1664 Hi I am using opamp as a voltage follower for one application. I am using a filter circuit for the output as shown below. Can anyone suggest how to select the values for diode, transistor and resistor values? Thanks in advance…
    • Answered

  • TINA/Spice/OPA1664: PSpice model of OPA1662 is not compatible with other PSpice models of OPA1602 or OPA1652? Syntactic error from PSpice solver...

    Resolved
    Part Number: OPA1664 Other Parts Discussed in Thread: TINA-TI , , OPA1662 , OPA1602 , OPA1652 , LME49990 , LME49723 , LME49600 , LME49860 Tool/software: TINA-TI or Spice Models Hi, I have a problem with last (date: 03 Oct 2018) OPA1662 PSpice Model of OPA1664…
    • Resolved
    • Answered

  • WEBENCH® Tools/OPA1664: Low pass filter ; capacitor size too big generated from Webench

    Resolved
    Part Number: OPA1664 Tool/software: WEBENCH® Design Tools Hi, I am using webench to create a low pass filter (image pasted, report attached). The BOM generated by the filter seems odd to me. The feedback capacitor size (C2) in third stage and fourth stage…
    • Resolved
    • Answered

  • OPA1664: Output voltage is significantly reduced from pre-amplifier when capacitor is used in the microphone output.

    Resolved
    Part Number: OPA1664 Other Parts Discussed in Thread: OPA1604 , OPA1654 Hi, I am planning to use OPA1664 as a pre-amplifier to amplify microphone signal, using low pass sallen key topology which I have generated from TI webench. I am using dual power…
    • Resolved

  • RE: OPA1664: Signal is getting distorted at the fourth stage of the Op Amp, Sallen Key configuration

    Hi Miriam, Extremely sorry for late reply. I have attached picture of the circuit. I have used OPA1664, because I needed quad channel op-amp, low noise performance, good audio performance amplifier, on the top this op-amp is sound plus. Input and output…
    • Answered

  • OPA1664 Pspice model

    Resolved
    Other Parts Discussed in Thread: OPA1664 hi all, im using a cadence work space |(orcad/pspice) im looking for a pspice model for OPA1664. on the web there is only TINA TI model. there is a way to convert TINA to Pspice model? thanks
    • Resolved

  • OPA1664

    Other Parts Discussed in Thread: OPA1664 The 100Hz noise voltage spec in the data sheet data table does not agree with the noise curve shown in Figure 1. Thank God TI finally has titled its data sheet file "opa1664.pdf" instead of some incomprehensive…

  • What is the max output current of the OPA1664 with a +-12v supply

    Other Parts Discussed in Thread: OPA1664 I'm trying to determine the max output current of the OPA1664 with a +-12v supply. The data sheet refers you to the typical characteristics graph. Operating conditions are VS+-15V, Rl=2k unless otherwise noted,…

  • OPA1654: Voltage noise

    TI Thinks Resolved
    Part Number: OPA1654 Other Parts Discussed in Thread: OPA1664 Hi Expert, My customer is checking the datasheet for OPA1654 and OPA1664. Regarding the figure of Voltage noise below, (1) Regarding Figure1 It is shown the data at 25C. Do you have any data…

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