Standby current measurement

Feb 17, 2006 1 Replies

Good day to all,



Does anyone know of any peculiarities concerning the measurement of the standby current of a DDR RAM? I was thinking of measuring the standby current like I do for a regular IC module; setting all data inputs to ground/vdd and placing a small resistor in the path to ground. In this manner, the resistor's voltage drop can be used to extrapolate the standby current. Perphaps, amplifying the resistor's voltage drop can increase the measurement accuracy...



Given that I know relatively little about DDRs (I will research them after I post this post), I was wondering if this typical standby current measurement setup will be apllicable for DDRs. After all, DDRs operate in standby with clocks in the 100's of MHz and standby currents in the order of 10's of mA.



Any help will be appreciated. The DDR (to be tested) in question is unknown for the moment.



Regards,



Roger



dynamic ram doesn't stand by,

measure the system current draw with and without the ram. compare all 0 with all 1 etc...

Bye. Jasen

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