mc68hc916y3 Freescale Semiconductor, Inc, mc68hc916y3 Datasheet - Page 227

• Manufacturer Part Number: mc68hc916y3
• Description: Mc68hc16y3 16 Bit Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

MC68HC16Y3/916Y3
USER’S MANUAL
The current out of the pin (I
equation:
where:
V
V
ELECTRICAL CHARACTERISTICS.
R
The current into (I
parasitic bipolar transistor (1/K
One way to minimize the impact of stress conditions on the ADC is to apply voltage
limiting circuits such as diodes to supply and ground. However, leakage from such cir-
cuits and the potential influence on the sampled voltage to be converted must be con-
sidered. Refer to Figure 10-8.
STRESS
BE
STRESS
= Parasitic bipolar base/emitter voltage (refer to V
= Adjustable voltage source
= Source impedance (10K resistor in Figure 10-7 on stressed channel)
Figure 10-7 Input Pin Subjected to Negative Stress
VDD
IN
Freescale Semiconductor, Inc.
) the neighboring pin is determined by the 1/K
For More Information On This Product,
NEGATIVE
ANALOG-TO-DIGITAL CONVERTER
VOLTAGE
STRESS
+
OUT
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N
) under negative stress is determined by the following
I
‹‹1).
OUT
R
R
ADJACENT
STRESS
=
10K
------------------------------------------ -
V
STRESS
I
OUT
I
IN
R
STRESS
PARASITIC
DEVICE
–
V
PIN UNDER
ADJACENT
STRESS
BE
PINS
NEGCLAMP
in APPENDIX A
N
(Gain) of the
MOTOROLA
ADC PAR STRESS CONN
10-19