Post Go back to editing

Voltage hysteresis measurement procedure

Category: Datasheet/Specs
Product Number: ADR4525

Voltage reference datasheets specify output voltage hysteresis  by certain temperature cycle.

My questions are

1. What is the temperature curve used for testing Vref? - lets say 25°C to 125°C to 25°C (half cycle)

   - What is the ramp rate from 25->125

    - How log must stay at 125?

    - what is the ramp-down rate 125-> 25

    - how long must stay back at 25C before taking measurement.

2. Is there an industrial standard defining the test procedure for voltage hysteresis?

I did caracterization of few voltage references. Results shows that they srongly depend on temerature curve - e.g. - tests 25->70->25 - gives anything between 2...90 ppm. I wonder  how AD tests it and is numbers cross comparable between deferent manufacurers. 

Best Regards,

Mirtcho

Before You Switch


Switching languages will make ADI Explorer unavailable. Resume your session by switching back to English and reopening ADI Explorer.