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    1. ADR421
      Production
      Product
      Series Voltage References
      Ultraprecision, Low Noise, 2.500 V XFET® Voltage References
      ADR421

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    2. UG-757: Evaluating the AD5380/AD5382 40-/32-Channel, 14-Bit Voltage Output DACs with On-Chip Reference
      User Guide

      PDF

      UG-757: Evaluating the AD5380/AD5382 40-/32-Channel, 14-Bit Voltage Output DACs

      333.91 K

    3. UG-681: Evaluating the AD5390/AD5392, 16-/8-Channel, 14-Bit Voltage Output DACs with On-Chip Reference
      User Guide

      PDF

      UG-681: Evaluating the AD5390/AD5392, 16-/8-Channel, 14-Bit Voltage Output DACs with On-Chip Reference

      646 kB

    4. AD8421
      Recommended for new designs
      Product
      Instrumentation Amplifiers
      3 nV /√Hz, Low Power Instrumentation Amplifier
      AD8421

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    5. ADR425
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      Series Voltage References
      Ultraprecision, Low Noise, 5.00 V XFET® Voltage Reference
      ADR425

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    6. ADR423
      Production
      Product
      Series Voltage References
      Ultraprecision, Low Noise, 3.00 V XFET® Voltage Reference
      ADR423

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    7. ADR420
      Production
      Product
      Series Voltage References
      Ultraprecision, Low Noise, 2.048 V XFET® Voltage Reference
      ADR420

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    8. ADR441
      Production
      Product
      Series Voltage References
      Ultralow Noise, LDO XFET® 2.5V Voltage Reference w/Current Sink and Source
      ADR441

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    9. ADR431
      Production
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      Series Voltage References
      Ultralow Noise XFET® Voltage References with Current Sink and Source Capability
      ADR431

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    10. UG-532: Evaluation Board for AD5696R/AD5696/AD5694R/AD5694 16-Bit/12-Bit, Quad Channel Voltage Output DAC
      User Guide

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      UG-532: Evaluation Board for AD5696R/AD5696/AD5694R/AD5694 16-Bit/12-Bit, Quad Channel Voltage Output DAC

      414 kB

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      1. output noise of AD8421ARZ

        Forum Thread
        Answered
        Instrumentation Amplifiers
        23 November, 2023
        as shown as the picture above, I connect the vin+ with vin- and power is &plusmn;5V, gain is 80. But the noise is about 10mV from oscilloscope.How can I reduce the noise? Thanks!
        adr435amplifiershardwareInstrumentation Amplifiersnoisead8421instrumentation_amplifier

      2. RE: output noise of AD8421ARZ

        Forum Reply
        Instrumentation Amplifiers
        06 December, 2023
        Hi DPFATE_DP, You may want to consider ADR435 which has a very low-noise output. However, please consider that ADR435 is a voltage reference IC with only 30mA of output current. This might not be sufficient if you will use this for your other ICs. Kindly visit our power …

      3. RE: output noise of AD8421ARZ

        Forum Reply
        Instrumentation Amplifiers
        05 December, 2023
        Hi Franz, Could you give me some advice about which power ICs I should select ? Best regards, DPFATE_DP

      4. RE: output noise of AD8421ARZ

        Forum Reply
        Instrumentation Amplifiers
        04 December, 2023
        Hi DPFATE_DP, Since there is also a 10mV noise on your power supply pin, the noise may come from your power ICs. You may check your power management for noise sources. AD8421 needs a stable DC voltage as the noise can adversely affect performance. You may place a 0 …

      5. RE: output noise of AD8421ARZ

        Forum Reply
        Instrumentation Amplifiers
        04 December, 2023
        Hi Franz, I am so sorry. My previous description is wrong. In fact, I use two AD8421 to get two stage of amplifier. the Gain of first stage is 80 and second stage is 50. The test circuit of first stage is shown as the picture in my question and …

      6. RE: output noise of AD8421ARZ

        Forum Reply
        Instrumentation Amplifiers
        30 November, 2023
        Hi DPFATE_DP, Could you check the noise on your power supply as well as your vref? Best regards,Franz

      7. RE: output noise of AD8421ARZ

        Forum Reply
        Instrumentation Amplifiers
        29 November, 2023
        Output is just like the picture above. but it is the result of gain = 4000. No input signal. I connect the vin+ with vin- and you can refer to the circuit of my question. Thanks!

      8. RE: output noise of AD8421ARZ

        Forum Reply
        Instrumentation Amplifiers
        27 November, 2023
        Hi DPFATE_DP , Can you share your input and output scope measurement? Best regards, Franz

      9. AD7609 works properly at 4.75V rather than 5V

        Forum Thread
        Answered
        Precision ADCs
        24 December, 2014
        I have an AD7609 powered by a single 5V supply (AVcc linked to Vdrive with a 1000R @ 100MHz, 200mA EMC Ferrite Filter), using Serial Data output. This is using an external 2.5V reference from an ADR421BRZ. Initially this was working properly but now we have observed a strange phenomenon …
        Simultaneous Sampling A/D ConvertersPrecision A/D Convertersad7609

      10. Consideration for AD8421

        Forum Thread
        Answered
        Instrumentation Amplifiers
        28 March, 2013
        … the amplifier is not up to the calculated value. No issues with the circuit connections. Am i wrong with the ic selection? Is there any fixed gain version of this ic? Part Number of IC: AD8421ARZ. Is there any issue with the supplies? Any reply will be helpful. Regards, Chaitanya.
        amplifiersInstrumentation Amplifiersad8421

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