MC68F375
ELECTRICAL CHARACTERISTICS
MOTOROLA
REFERENCE MANUAL
Rev. 25 June 03
E-28
Table E-14 AMUX_HV Absolute Maximum Ratings
Num
Parameter
Symbol
Min
Max
Unit
1
Analog Supply, with reference to V
SSA
V
DDA
– 0.3
6.0
V
2
Internal Digital Supply1, with reference to V
SSI
NOTES:
1. For internal digital supply of VDDI = 3.3 V typical.
V
DDI
– 0.3
4.0
V
3
V
SS
Differential Voltage
V
SSI
– V
SSA
– 0.1
0.1
V
4
V
DD
Differential Voltage2
2. Refers to allowed random sequencing of power supplies.
V
DDI
– V
DDA
– 6.0
4.0
V
5
Maximum Input Current3,4,5
3. Transitions within the limit do not affect device reliability or cause permanent damage. Exceeding limit may cause permanent
conversion error on stressed channels and on unstressed channels.
4. Input must be current limited to the value specified. To determine the value of the required current-limiting resistor, calculate
resistance values using VPOSCLAMP = VDDA + 0.3 V and VNEGCLAMP = – 0.3 V, then use the larger of the calculated values.
5. Condition applies to one pin at a time.
IMA
– 25
25
mA
Table E-15 AMUX_HV DC Electrical Characteristics (Operating)
(VSSI and VSSA = 0 Vdc, FQCLK = 2.0 MHz, TA within operating temperature range)
Num
Parameter
Symbol
Min
Max
Unit
1
Analog Supply1
NOTES:
1. Refers to operation over full temperature and frequency range.
V
DDA
4.5
5.5
V
2
V
DDI
3.0
3.6
V
3
V
SS
Differential Voltage7
V
SSI
– V
SSA
– 100
100
mV
4
Input Voltage
VINDC
V
SSA
V
DDA
V
5
Analog Supply Current2
2. VDDA is used only for a pin stress protection circuit. It draws DC current only when the pin voltage is above VDDA. It draws
a minimal capacitive switching current when the channel is changed.
I
DDA
—10
A
6
Input Current, Channel Off3
3. Maximum leakage occurs at maximum operating temperature. Current decreases by approximately one-half for each 10° C
decrease from maximum temperature.
I
OFF
– 200nA
200
nA
7
Total Input Capacitance4
ANXx Not Sampling
ANXx Sampling5
4. This parameter is periodically sampled rather than 100% tested.
5. Sampling adds an incremental capacitance of roughly 5pF.
C
IN
—
15
20
pF
8
Disruptive Input Injection Current6,7
6. Below disruptive current conditions, the channel being stressed has conversion values of 0x3FF for analog inputs greater
than VRH and 0x000 for values less than VRL. This assumes that VRH ≤ VDDA and VRL ≥ VSSA due to the presence of the
sample amplifier. Other channels are not affected by non-disruptive conditions.
7. Design information only, not tested.
IINJ
– 3
+3
mA
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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