From dabrowsk@ftj.agh.edu.pl Mon Apr 30 00:54:42 2001
Date: Tue, 24 Apr 2001 10:40:51 +0200 (METDST)
Subject: correction factor for calibration capacitors


Dear Colleagues,

Below are the correction factors for the calibration capacitors
extracted from the foundry data (from the oxide thickness) for 
recent batches of ABCD3T chips. 

The injected charge should be scaled by "cap_corr_factor".
In practice the gain obtained while assuming nominal calibration
capacitance should be divided and the noise should be multiplied 
by that factor.

Shown is also the spread of calibration capacitance across
the whole batch.

Regards,

	Wladek

**************************************************************
batch #		cap_corr_factor		cap_spread (1 sigma)
Z34685A		1.07			1.0%
Z36217		1.10			1.0%
Z36459		1.13			2.2%
Z37277		1.12			1.5%
Z36459A 	1.13 +/- 0.022 (1 sigma)
Z38850	1.13 +/- 0.030 (1 sigma)
**************************************************************
(Is the Z36459A the same as Z36459 (without A)?)

In terms of PCM data - yes.