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AC Electrical Characteristics (Continued)

The following specifications apply for V

5V, t

20 ns, V

REF(

)

5V, V

REF(

)

GND, and Speed Adjust pin

unconnected unless otherwise specified. Boldface limits apply for T

MIN

to T

MAX

; all other limits T

C. (Continued)

Symbol Parameter Conditions

Typical Limit Units

(Note 7) (Note 8) (Limits)

Multiplexer Control Setup Time 10 75 ns (max)

Multiplexer Hold Time 10 40 ns (max)

VIN

Analog Input Capacitance 35 pF (max)

OUT

Logic Output Capacitance 5 pF (max)

Logic Input Capacitance 5 pF (max)

Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is

functional. These ratings do not guarantee specific performance limits, however. For guaranteed specifications and test conditions, see the Electrical Characteris-

tics. The guaranteed specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under

the listed test conditons.

Note 2: All voltages are measured with respect to GND, unless otherwise specified.

Note 3: When the input voltage (V

) at any pin exceeds the power supply rails (V

GND or V

) the absolute value of current at that pin should be limited

to 5 mA or less. The 20 mA package input current limits the number of pins that can safely exceed the power supplies with an input current of 5 mA to four.

Note 4: The maximum power dissipation must be derated at elevated temperatures and is dictated by T

JMAX

, i

and the ambient temperature, T

. The maximum

allowable power dissipation at any temperature is P

JMAX

)/i

or the number given in the Absolute Maximum Ratings, whichever is lower. In most

cases, the maximum derated power dissipation will be reached only during fault conditions. For these devices, T

JMAX

for a board-mounted device can be found

from the tables below:

ADC10461

Suffix i

(

C/W)

CIN 70

CIWM 85

ADC10462

Suffix i

(

C/W)

CIN 60

CIWM 82

ADC10464

Suffix i

(

C/W)

CIN 53

CIWM 78

Note 5: Human body model, 100 pF discharged through a 1.5 kX resistor.

Note 6: See AN-450 ‘‘Surface Mounting Methods and Their Effect on Product Reliability’’ or the section titled ‘‘Surface Mount’’ found in a current National

Semiconductor Linear Data Book for other methods of soldering surface mount devices.

Note 7: Typicals represent most likely parametric norm.

Note 8: Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level).

Note 9: Accuracy may degrade if t

is shorter than the value specified. See curves of Accuracy vs t

1 2 3 4 5 6 7 8 9 ... 17 18

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