2012-07-24-test-1.dat
With three Hamamatzu Diodes 1x2 cm²
At V=33V, later 80V
2012-07-25-test-2.dat
Without preamps.
ADC 1 very noisy and bad offset
ADC 3 noisy
ADC 4 a litte more noise
VOCM = 2.36V
2012-07-25-test-3.dat
Without preamps. VCM dividers changed from 10k/10k to 1k/1k
no change in offsets and noise
VOCM = 2.49 V
2012-07-25-test-4.dat
Without preamps. ADC 1 gain setting resistors replaced.
little change in offset
2012-07-25-test-5.dat
Without preamps. ADC driver opamp AD8332 replaced
The noise is gone. Offset is where it shoule be :-))
Idig = 243.9mA (disable())
Icc = 96.4mA
Iss = 76.1mA
2012-07-25-test-6.dat
With preamps and diodes, Vbias disconnected.
Idig = 242.5mA (disable())
Icc = 128.1mA
Iss = 107.4mA
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