Motorola MPC533 Reference Manual page 604

QADC64E Integration Requirements
The current into (I
IN
ratio) of the parasitic bipolar transistor (K
equation:
I = - K * I
IN N INJ
where I is either I
INJ INJN
A method for minimizing the impact of stress conditions on the QADC64E is to
strategically allocate QADC64E inputs so that the lower accuracy inputs are adjacent to the
inputs most likely to see stress conditions.
Also, suitable source impedances should be selected to meet design goals and minimize the
effect of stress conditions.
14-80
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
) the neighboring signal is determined by the K
or I .
INJP
MPC533 Reference Manual
<< 1). The I can be expressed by the following
IN
N
(current coupling
N
MOTOROLA