• State TI Thinks Resolved
  • Locked Locked
  • Replies 2 replies
  • Answers 1 answer
  • Subscribers 48 subscribers
  • Views 421 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

LT1013-DIE: Low temp performance?

Gregory Duperon
Expert 8040 points

Part Number: LT1013-DIE

I have a customer troubleshooting a design that0 uses the TI LT1013-DIE.  They are operating the amplifier in an non-inverting configuration with a gain of 2.  They are experiencing distortion on the output at -55C.  It resembles crossover distortion, however it is not occurring at the zero crossing.

The operating frequency is 3.2KHz, the output voltage is 2Vrms full scale.  The supply voltages are +/-5VDC.

Do you have any insight into this behavior?  Since the die are only tested at 25C, are there temp guardbands in place to ensure known good die at 25C are functional and in spec across temp?

Thanks.

  • 0
    TI__Genius 17125 points

    Hello Gregory,

    I am moving your question to the precision amplifier group who will have more experience with the product and might have an understanding of this behavior.

  • 0
    TI__Guru* 93105 points

    Hi Gregory,

    Here is what the LT1013-DIE datasheet states regarding the assured electrical performance,

    "Processing is per the Texas Instruments commercial production baseline and is in compliance with the Texas Instruments Quality Control System in effect at the time of manufacture. Electrical screening consists of DC parametric and functional testing at room temperature only. Unless otherwise specified by Texas Instruments AC performance and performance over temperature is not warranted."

    Therefore, no assurances about specific levels of electrical performance are implied or made for the LT1013-DIE at temperature.

    If you can provide the LT1013-DIE circuit and images of the input and output waveforms we may be able to come up with some ideas as to what may be behind the distortion.

    Regards, Thomas

    Precision Amplifiers Applications Engineering