High Speed Amplifiers

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High Speed Amplifiers

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Related Posts

  • Forum Post: Re: OPA847

    Kristoffer Flores
    Matthew, It is possible that a feedback loop is being created through the common power supply connections of the three OPA847 stages and there is inadequate power supply rejection (PSR) to these high frequency signals. In this cascaded high gain configuration, small signals generated on the power...
    on Oct 21, 2010

  • Forum Post: How to eliminate the self-oscillation of OPA847?

    Bob61009
    Dear All, I made an amplification circuit with OPA847 as the amplifier recently. The designed the working-frequency is 76MHZ. The designed Gain of my circuit is G=10. When the input signal is strong, the circuit works perfect. However, when there is no input signal, a self-oscillation of 420MHZ exists...
    on Nov 19, 2010

  • Forum Post: OPA847 output impedance for cascade

    Merlin Cooper68095
    Dear all, I wish to receive a clarification of the paragraph on page 10 of the OPA847 datasheet which states: "If the signal source is actually the low impedance output of another amplifier, RG should be increased to be greater than the minimum value allowed at the output for that...
    on Mar 1, 2011

  • Forum Post: Differential wideband DAC output with THS4509

    Luis M Brugarolas
    (Please visit the site to view this file) I have designed a differential wideband transimpedance amplifier for a high speed DAC (DAC5681). This DAC has an output compliance range of AVDD+-0.5 V. I have chosen a transimpedance architecture as circuit has to operate from DC to 300 MHz. See schematic...
    on Sep 15, 2011

  • Forum Post: high speed, high current modified howland

    steven suddarth
    Hi, I need a fast VCCS that can put out 1.5 A. I was going to use the Cirrus PA09 but for external reasons I can't use that package/part. I am thinking about using parallel OPA522 because that part is almost fast enough but most of the suggestions around this technique use the other amps...
    on Jan 5, 2012

  • Forum Post: THS6002 “Dual Differential Line Drivers and Receivers”. Output: 15 MHz

    Juan Manuel Nieto
    I made ​​a PCB with the THS6002 chip "Dual Differential Line Drivers and Receivers". I copied the application example of figure 59 in the datasheet (page: 34), with three differences: the transformer is 1:1, the resistors are 22 Ohm (not 12.5) and the power supply is +-5 VDC (not +-15VDC)....
    on Mar 5, 2012

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