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Related Posts

  • Forum Post: Re: Selecting voltage-follower for low noise and low cost

    Matt Hann
    Brian, Check out the OPA365. This may be overkill in terms of bandwidth but it definitely has good noise characteristics and comes in an SO8 package. Matt
    on Nov 20, 2009

  • Forum Post: Re: OP AMP Current Noise

    Art Kay
    Frank, The increase in noise is called f-squared noise. This noise is the result of an interaction of the input voltage noise and the input capacitive reactance. I have an attached a preliminary article on this subject. This article has not been published. I have published a series of articles...
    on Dec 29, 2009

  • Forum Post: TLV3501 output noise

    LIAN DAI
    Hi Guys, I got a problem with my TLV 3501 output. Here is the situation Input of comparator TLV3501: PIN+ (10K adjustable resistor as reference voltage regulator), PIN- (500mV 10Mhz sine wave) Output: 10Mhz square wave is supposed to be output or source to MSP430F5529 (PIN 27 TA1CLK, I have...
    on Sep 1, 2010

  • Forum Post: Smaller instrumentation amp with the same noise performance as the INA103

    Andrew Madsen
    I'm working on a a design that requires very low noise. The INA103 works very well in my application, but its SOIC-16 package is much larger than I would like. I'm wondering if there's another available instrumentation amp with a noise figure around 1nV/sqrt(Hz) that comes in a smaller surface...
    on Dec 16, 2010

  • Forum Post: INA333 problems

    Gianpietro Favaro
    Hello to everybody. We are users of INA333. The device is used, in large quantity, in EEG amplifier (64 units per device). We noticed that parts marked on the bottom as W4EE suffer from instability in large percentage (>10%). We need to replace defective parts with units of different lots (e.g...
    on Apr 21, 2011

  • Forum Post: Re: How can I design a Photodiode Amplifier Circuit optimized for 470nm wavelength?

    Neil Albaugh
    Grant; Your recommendations are all excellent but one-- that one is a trap that almost everyone falls into when first designing photodiode amplifiers. :...use as large a photodiode as you can but then be careful that the capacitance doesnt become too large to limit the frequency...." That...
    on Apr 25, 2011

  • Forum Post: Re: OPA376 output noise

    Neil Albaugh
    Mujahid; Congratulations on tracking down this obscure problem! Few people realize that high-K ceramic capacitors are piezoelectric. Just tap on one in a circuit like yours with a pencil and see what happens! As an additional warning, they are also pyroelectric-- nice little sensors that respond to...
    on Jun 3, 2011

  • Forum Post: Re: OPA376 output noise

    Neil Albaugh
    Mujahid; You might be able to find some film capacitors that would be high enough in value to work-- they will have very low leakage and won't exhibit the problems that you've observed in high-K ceramic types. They will be pretty large physically, even though your required voltage rating won't...
    on Jun 8, 2011

  • Forum Post: Need help

    deski beri
    Hello, I am a chemistry student currently working on photoacoustic spectroscopy (frankly speaking; working to build a photoacoustic spectrometer). In my experiment, I am using IIIb series 633 nm HeNe laser, 25 mW , bombarded to malachite green sample in stainless steel compartment, I used a piezoelectric...
    on Jun 27, 2011

  • Forum Post: Noise pick up and controller

    karthick balu
    Noise pick up and controller hi, for our project msp430g2211 controller is used.. in that noise is picked up in input to the comparator... for that we used capacitor across the controller port pin with respect to ground... noise is arrested..... but putting of capacitor to the port pin takes high...
    on Feb 10, 2012

  • Forum Post: Re: Noise pick up and controller

    karthick balu
    Thank you .. Mr. Collin Wells p1.0 is comparator reference.... p1.1 is comparator input from amplifier circuit... p1.2 is comparator output and which is connected to the other port.(p1.3).. and this terminal is connected to ground through capacitor(10nf)... i tried it with pcb...
    on Feb 11, 2012

  • Forum Post: Interferences and INA122

    Yaroslav Mudritsky
    Hi, I have a problem with my loadcell and ina122 output. My output is too influenced by interferences on loadcell body. Seems there are no(or very low) interferences on circuit or on cable. Cable is shielded and the shield is connected to gnd and on loadcell body. If i touch loadcell body (and hold on...
    on Mar 3, 2013

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