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  1. Minimizing Noise and Power Consumption in Automotive Audio Systems with SigmaDSP
    Analog Dialogue

    Ben Wang

    A look at how DSP can be used to improve audio performance and flexibility, while providing a more powerful multimedia experience for passengers.
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    1. ADA4075 Differential Input Voltage

      Forum Thread
      Answered
      Differential Amplifiers and ADC Drivers
      29 April, 2020
      I want to use ADA4075 for a differential input that could have a maximum of 10V differential voltage.In the datasheet, I see the absolute maximum rating for Differential Input Voltage is &plusmn;1.2 VWhat does this mean? The Inputs should have a difference not more than &plusmn;1.2 V …
      amplifiersdifferential input voltageopampdifferential amplifierada4075

    2. Lowering 1/f noise in ADA4075 buffer differential circuit

      Forum Thread
      Answered
      Operational Amplifiers
      07 July, 2023
      Is there anyway to lower noise on 1/f region on ADA4075 in this differential buffer circuit? 1/f seems to be near 10Hz for ADA4075 but it doesn't seem to reflect here (TI OPA1692, albeit noisier has a much flatter noise profile down to 1/f and I …
      Operational Amplifiers (Op Amps)amplifiershardwarePrecision Op Amps (Vos &le;1mV &amp; TCVos &le;2uV/C)ada407517.1.8ada4075-2audio

    3. ADA4075-2 for buffering + single ended to differential electret capsule

      Forum Thread
      Answered
      Operational Amplifiers
      05 June, 2023
      Would the ADA4075-2 be sufficiently low noise as a dual op amp buffer + differential driver for an electret capsule with a self noise of 14dBA/-117 dBV/1.4uV? I'd like to keep it as power efficient as possible while maintaining a lower noise than the capsule itself …
      Operational Amplifiers (Op Amps)amplifiershardwarePrecision Op Amps (Vos &le;1mV &amp; TCVos &le;2uV/C)ada4075noiseada4075-2Low Noise Op Amps (= 10nV/vHz)

    4. ADA4075-2 EOL?

      Forum Thread
      Answered
      Operational Amplifiers
      29 March, 2022
      Hi, I got a notice from Digi-Key that the ADA4075 is marked end of life. Checking the product Page there is no such info. I just finished a design using this OpAmp. Is it still recommended for new designs?
      Operational Amplifiers (Op Amps)amplifiersPrecision Op Amps (Vos &le;1mV &amp; TCVos &le;2uV/C)eolada4075ada4075-2

    5. popcorn noise in some ADA4075-2 devices?

      Forum Thread
      Answered
      Differential Amplifiers and ADC Drivers
      01 September, 2019
      … both circuits in parallel and recorded both outputs simultaneously and there was no sign of these noise peak from the LT1028 based circuit while the ADA4075-2 was showing it. Then I unsoldered the specific ADA4075-2 chip in my fixture and replaced it with another ADA4075-2 from the …
      Operational Amplifiers (Op Amps)amplifiersopampPrecision Op Amps (Vos &le;1mV &amp; TCVos &le;2uV/C)ada4075noiseada4075-2Low Noise Op Amps (= 10nV/vHz)lt1028

    6. ADA4075-2ARZ

      Forum Thread
      Answered
      Operational Amplifiers
      20 February, 2024
      Potrei sapere che differenza c'è tra part number ADA4075-2ARZ e ADA4075-2ARZ-R7 oppure -RL?? Grazie
      Operational Amplifiers (Op Amps)Datasheet/SpecsamplifiersADA4075-2ARZPrecision Op Amps (Vos &le;1mV &amp; TCVos &le;2uV/C)ada4075-2

    7. Wrong balanced line receiver information in ADA4075 data sheet

      Forum Thread
      Answered
      Operational Amplifiers
      16 August, 2013
      On page 19 of the ADA4075-2 data sheet, there is a circuit called "Balanced Line Driver. The whole page is one big wrong thing. The first thing that caught my eye is the equation for (high degree of CMRR). When plugging the values of R1, R2, R3, and R4 …
      Operational Amplifiers (Op Amps)amplifiersPrecision Op Amps (Vos &le;1mV &amp; TCVos &le;2uV/C)ada4075-2

    8. ADA4075-2 Input Supply

      Forum Thread
      Answered
      Operational Amplifiers
      20 February, 2013
      Hi, We are using the ADA4075 amplifier as a single ended to differential converter in our design. This is for AD1974 which requires differential inputs. The OPAMP takes dual polarity supplies with voltages from ±4.5 V to ±18 V. Is it possible to drive ADA4075 with a single voltage …
      Operational Amplifiers (Op Amps)amplifiersopampPrecision Op Amps (Vos &le;1mV &amp; TCVos &le;2uV/C)Integrated/Special Purpose A/D Convertersada4075-2ad1974Audio A/D Converters

    9. ADA4075-2 and SSM2167 Q's

      Forum Thread
      Answered
      Audio
      19 March, 2012
      Hi, We are looking at using the ADA4075-2 instead of the OP275, as recommended by ADI, as a balanced line driver to the AD1974. However, the reference design uses trimpots whereas these are not shown for the OP275 reference design. As we are looking to have 12-16 inputs …
      Operational Amplifiers (Op Amps)amplifiersAudio ProductsOP275Microphone Pre-Amp Audio Interfacesadmp504microphoneopampPrecision Op Amps (Vos &le;1mV &amp; TCVos &le;2uV/C)Integrated/Special Purpose A/D Converters

    10. Input offset voltage (Vos) & Input bias current (Ib) vs Common-Mode voltage (Vcm), for ADA4075

      Forum Thread
      Answered
      Operational Amplifiers
      05 April, 2022
      Hello Technical Support, I seek to understand the input parameters related to precision (namely: Vos, & Ib) as a function of common-mode input voltage, for the ADA4075-2. The datasheet I have is ver C, dated 11/13. On datasheet page 3 the table states:Offset Voltage VOS 0.2mV …
      Operational Amplifiers (Op Amps)amplifiersPrecision Op Amps (Vos &le;1mV &amp; TCVos &le;2uV/C)ada4075-2