ADR4520 Reference output short fault

Question

Hi, 
 I couldn't find any details about the short circuit behaviour of the ADR4520 voltage reference. 
 The datasheet specifies the maximum source & sink limits,but not what happens in case of a short on the output or in case those limits are exceeded. 
 Is it safe to short the refrence output to ground for a short while or to overload the output in fault situations(short excessive current draw)? 
 In my design I used a ceramic X7R 10uF cap(minimum 1uF specified) on the output for stability ,but I ommited the 100nF ceramic one(or higher valued one) for better transient response and HF filtering ,does it have a significant impact,for now I can't see any oscilations on my scope(did see them without any output capacitor filtering though). 
 
 Thank you for your time, 
 Andrei

GioBalgemino · Accepted Answer

Hi Andrei, 
 It is always recommended not to exceed the maximum specs written in the datasheet. 
 In high voltage applications, an output short-circuit to ground can create an input voltage transient that could exceed the maximum input voltage rating. It may affect the performance of the part, eg. stability, accuracy. 
 Have you tried using the recommended parallel capacitor value and compared them with the 100nF that you used? 
 
 Thanks, 
 Gio)

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ADR4520 Reference output short fault