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Results on Analog.com

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  1. AD549
    Production
    Product
    Low Input Bias Current Op Amps (≤100 pA)
    Ultralow Input-Bias Current Operational Amplifier
    AD549

    PDF

    Datasheet

    Documentation

    Ask the Community

    Sample & Buy

    Sample & Buy

  2. AD589
    Not Recommended for New Designs
    Product
    Shunt Voltage References
    Two-Terminal IC 1.2 V Reference
    AD589

    PDF

    Datasheet

    Documentation

    Ask the Community

    Sample & Buy

    Sample & Buy

  3. Operational Amplifiers - Precision and General-Purpose,
    Product Selection Guide

    PDF

    548.74 K

  4. AD544: High Performance, BiFET Operational Amplifier Obsolete Data Sheet
    Obsolete Data Sheet

    PDF

    376 kB

  5. AD509: High Speed, Fast Settling IC OP Amp Obsolete Data Sheet
    Obsolete Data Sheet

    PDF

    2074 kB

  6. AD547: High Performance, BiFET Operational Amplifier Obsolete Data Sheet
    Obsolete Data Sheet

    PDF

    376 kB

  7. AD549: Ultralow Input-Bias Current Operational Amplifier Data Sheet
    Data Sheet

    PDF

    1220 kB

  8. AD542: High Performance, BiFET Operational Amplifier Obsolete Data Sheet
    Obsolete Data Sheet

    PDF

    376 kB

  9. AD7546: CMOS 16-Bit Voltage out DAC Obsolete Data Sheet
    Obsolete Data Sheet

    PDF

    3336 kB

  10. Military Part Cross-Reference Guide
    Cross Reference Guide

    PDF

    29 kB

Results on EngineerZone

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    1. AD549LHZ - Casing not connected to Pin 8

      Forum Thread
      Answered
      Operational Amplifiers
      27 October, 2023
      Good morning, Having had complaints from a lab equipment manufacturer that we supply that parts we have fitted to boards are incorrect we at first suspected they may have been a counterfeit lot. However, we have now purchased from three separate suppliers and all the parts that have come in …
      hardwareAD549LHZ

    2. AD549LH amplifier and Pin 8

      Forum Thread
      Answered
      Operational Amplifiers
      24 May, 2018
      I'm attempting to rebuild a circuit, a transimpedance amplifier circuit for a silicon photomultiplier. The amplifier uses the AD549LH op-amp, and I'm in the process of 'rewriting' the circuit as there is no schematic to reference the circuit off of. Think of this old circuit as just …
      silicon photomultiplierOperational Amplifiers (Op Amps)amplifiersphotomultipliertransimpedance amplifierad549Low Input Bias Current Op Amps (≤100 pA)

    3. RE: AD549LHZ - Casing not connected to Pin 8

      Forum Reply
      Operational Amplifiers
      06 November, 2023
      Hi, This was taken offline so I am closing this thread. Thanks, Mae

    4. RE: AD549LHZ - Casing not connected to Pin 8

      Forum Reply
      Operational Amplifiers
      03 November, 2023
      … misaligned on the side of the can. Also yes the PIN 8 in these counterfeits are not connected to case. I have two different lots of real AD549LH ( picture below ) from 2005 and AD549LHZ from 2015 and markings on both look identical except of extra Z letter. FAKE: FAKE: REAL:

    5. RE: AD549LHZ - Casing not connected to Pin 8

      Forum Reply
      Operational Amplifiers
      30 October, 2023
      Hi Mae, The 'tang' on the casing indicates the location of Pin 8. All units tested before this batch test correctly, work correctly in the unit and have the Pin 8 (next to the tang on the casing) shorted to the case as per the datasheet. These do not function …

    6. RE: AD549LHZ - Casing not connected to Pin 8

      Forum Reply
      Operational Amplifiers
      27 October, 2023
      Hi Ben, Sorry for any inconvenience caused, I will reach out to the responsible Apps Engineer and the marketing of this product to answer your question. But for the meantime, can you share your connectivity testing procedure? I just want to verify if there's some pin assignment confusion since …

    7. RE: AD549LH amplifier and Pin 8

      Forum Reply
      Operational Amplifiers
      01 June, 2018
      Hi! just to followup, we highly suggest you to try using our newer opamp's for transimpedance amplifier applications such as the ADA4530.

    8. RE: AD549LH amplifier and Pin 8

      Forum Reply
      Operational Amplifiers
      25 May, 2018
      uHi, As stated in page 1 of the datasheet, AD549 case is connected to pin 8 and the metal case can be connected to a point same potential with either of the input terminals to minimize stray leakage to the case. Usually, this connection is ground or path to ground …

    9. Regarding pin 8 of AD549

      Forum Thread
      Answered
      Operational Amplifiers
      15 July, 2023
      I purchased an AD549JHZ chip, but testing revealed that its pin 8 is not connected to the case. However, the case is connected to the negative power supply pin. This is contrary to the information provided in the datasheet. Is this configuration correct?
      AD549JHZ#2205Operational Amplifiers (Op Amps)amplifiershardwaread549Low Input Bias Current Op Amps (≤100 pA)

    10. AD549 drift

      Forum Thread
      Answered
      Instrumentation Amplifiers
      03 April, 2016
      I am trying to design a picoammeter with AD549K, in Integration mode opamp. I have used a reed relay to manually discharge the capacitor through a 100K resistor. a null pot is used in the in noninverting input. bypass capacitor of 100nf is used at power supply and input 2and …
      Operational Amplifiers (Op Amps)amplifiersad549Low Input Bias Current Op Amps (≤100 pA)