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ADA4350 SWITCHING NOISE

Question asked by sanjay@1989 on Mar 20, 2018

ADA4350 SWITCHING NOISE - WHILE SWITCHING BETWEEN FEEDBACK RESISTORS

I WANT MEASURE CURRENT FROM WORKING ELECTRODE(THREE ELECTRODE SYSTEM) RANGE = 1nA TO 10 mA

AS PER DATASHEET ADA4350 HAS GOT 6 SIX DYNAMIC RANGE SETTINGS/FEEDBACK

1. IF WE SWITCH BETWEEN FEEDBACK RESISTORS - WHETHER IT WILL INDUCE SPIKE/ GLITCH
2. BEACUSE I HAVE TO SWITCH FEEDBACK RESISTORS BASED ON MY WORKING ELECTRODE CURRENT LEVEL

 

FOR EXAMPLE

 

RANGE0 CURRENT RANGE= 1nA TO 100nA
RANGE1 CURRENT RANGE= 100nA TO 1uA
RANGE2 CURRENT RANGE= 1uA TO 100uA
RANGE3 CURRENT RANGE= 100uA TO 1mA
RANGE4 CURRENT RANGE= 1mA TO 5mA
RANGE5 CURRENT RANGE= 5mA TO 1mA

 

IF I SWITCH CONTINUOUSLY BETWEEN RANGE0 TO RANGE5 WHETHER IT WILL INDUCE SPIKE/ GLITCH OR IT WILL GET AFFECTED BY ANY OTHER NOISES.

IF IT IS NOT PLEASE CLARIFY

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