>> What I would like to know is how realistic the 1.1uA quiescent current
>> is. =A0...  =A0Yes, I could just
>> order one up and test it, but I thought I would ask for opinions first
>> and I seriously doubt my meter is accurate enough!

Easily tested.
V+ several volts > Vout.

Place say 100 uF at Vin.
1 megohm V+ to Vin.
Voltmeter across 1 Mohm.
Short 1M to charge cap.
Allow to settle.
Read voltage.
ADJUST FOR METER RESISTANCE.

eg if meter was 10 Mohm it will skew reading by about 10%.

Measure with 1 Mohm + meter.
Then add a second 1 Mohm in parallel.
If R meter >>> 1 Mohm voltage will about halve (after settling).
If not half meter R can be calculated.

OR a microammeter can be calibrated with a large R and large V so
meter r is swamped.
Some cheap multimeters have 200 uA ranges with 0.1 uA resolution.
Accuracy may be poor, but good enough for the above, and can easily be
calibrated.

Remember that marvellous things can be done with simple bridge
circuits. A somewhat forgotten art.


             Russell McMahon

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