MC68HC16Z1CAG16 Datasheet, PDF (346/500 Pages) Freescale Semiconductor, Inc – M68HC16Z Series users manual

Freescale Semiconductor, Inc.
Table A-32 ADC Maximum Ratings
Num
Parameter
Symbol
Min
Max Unit
1 Analog Supply
2 Internal Digital Supply, with reference to V_SSI
3 Reference Supply, with reference to V_SSI
4 V_SS Differential Voltage
5 V_DD Differential Voltage
6 V_REF Differential Voltage
7 V_RH to V_DDA Differential Voltage
8 V_RL to V_SSA Differential Voltage
Disruptive Input Current^{1, 2, 3, 4, 5, 6, 7}
9
V_NEGCLAMP ≅ –0.3 V
V_POSCLAMP ≅ 8 V
10 Positive Overvoltage Current Coupling Ratio^1,5,6,8
11 Negative Overvoltage Current Coupling Ratio^1,5,6,8
Maximum Input Current ^3,4,6
12
V_NEGCLAMP ≅ –0.3 V
V_POSCLAMP ≅ 8 V
V_DDA
V_DDI
V_RH, V_RL
V_SSI –V_SSA
V_DDI –V_DDA
V_RH –V_RL
V_RH –V_DDA
V_RL –V_SSA
I_NA
K_P
K_N
I_MA
–0.3
–0.3
–0.3
–0.1
–6.5
–6.5
–6.5
–6.5
–500
2000
500
–25
6.5
V
6.5
V
6.5
V
0.1
V
6.5
V
6.5
V
6.5
V
6.5
V
500 µA
—
—
—
—
25 mA
NOTES:
1. Below disruptive current conditions, a stressed channel will store the maximum conversion value for analog
inputs greater than V_RH and the minimum conversion value for inputs less than V_RL. This assumes that V_RH ≤
V_DDA and V_RL ≥ V_SSA due to the presence of the sample amplifier. Other channels are not affected by non-
disruptive conditions.
2. Input signals with large slew rates or high frequency noise components cannot be converted accurately. These
signals also interfere with conversion of other channels.
3. Exceeding limit may cause conversion error on stressed channels and on unstressed channels. Transitions
within the limit do not affect device reliability or cause permanent damage.
4. Input must be current limited to the value specified. To determine the value of the required current-limiting re-
sistor, calculate resistance values using positive and negative clamp values, then use the larger of the calcu-
lated values.
5. This parameter is periodically sampled rather than 100% tested.
6. Applies to single pin only.
7. The values of external system components can change the maximum input current value, and affect operation.
A voltage drop may occur across the external source impedances of the adjacent pins, impacting conversions
on these adjacent pins. The actual maximum may need to be determined by testing the complete design.
8. Current coupling is the ratio of the current induced from overvoltage (positive or negative, through an external
series coupling resistor), divided by the current induced on adjacent pins. A voltage drop may occur across the
external source impedances of the adjacent pins, impacting conversions on these adjacent pins.
A-62
ELECTRICAL CHARACTERISTICS
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M68HC16 Z SERIES
USER’S MANUAL