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INA116: I need a replacement for this part and to discuss my existing circuit.

Parminder chaudhary
Prodigy 15 points
Part Number: INA116
Other Parts Discussed in Thread: OPA928, INA819, , INA121

Hello 

 I am using your instrumentation IC INA 116 inputs pins are connected to the output of EMCO DC TO High voltage DC convertors  I need to replace this IC as this part is not available after some time I am attaching the picture for your reference . Plaese provide support asap 

  • 0
    TI__Mastermind 19177 points

    Parminder,

    The INA116 is the only low IB devices that incorporates guard drive into the device.  The INA121 and INA819 both have a similar function and low bias current but do not have a guard function.  To get the best bias current response with guarding you may want to consider using ultra-low bias current op amp buffer (OPA928 is a good modern low IB buffer).  If the IB requirement is not so stringent NA121 and INA819 may work directly.

    Best regards, Art

  • 0 in reply to Art Kay
    Prodigy 15 points

    Hello Art Kay 

    I have some doubt regarding my input voltage supply to the input pins.

    We are using a stepped-up DC at the input.

    Can we have a meeting so that I can discuss issue with you? 

    Please suggest me any time when you are free. we can generate a meeting link.

  • 0 in reply to Parminder chaudhary
    TI__Mastermind 19177 points

    Parminder,

    Sure, please send me an E2E friend request.  We can have a private message once you are friends and I can give you direct contact details and schedule a time.

    best regards, Art

  • 0 in reply to Art Kay
    Prodigy 15 points

    Hello Art kay! 

    Thanks for the reply I have sent you friend request. Please accept and schedule a time as per your availability..