If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

Supply Voltage

8.0V

Common-Mode Voltage

Differential Input Voltage

Strobe Voltage

8.0V

Output Sink Current

50 mA

Storage Temperature Range

−65˚C to 150˚C

Maximum Power Dissipation (Note 2) at 25˚C

Cavity Package

Molded Package

1308 mW

1207 mW

Lead Temperature (Soldering, 4 sec.)

260˚C

Operating Conditions

Min

Max

Units

Supply Voltage (V

DS7820A

4.5

5.5

V

DS8820A

4.75

5.25

V

Temperature (T

DS7820A

−55

+125

˚C

DS8820A

0

+70

˚C

Note 2: Derate cavity package 8.7 mW/˚C above 25˚C; derate molded pack-

age 9.7 mW/˚C above 25˚C.

Symbol

Parameter

Conditions

Min

Typ

Max

Units

V

TH

Differential Threshold Voltage

I

−3V

≤ V

0.06

0.5

V

V

−15V

≤ V

0.06

1.0

V

I

−3V

≤ V

−0.08

−0.5

V

V

−15V

≤ V

−0.08

−1.0

V

R

I−

Inverting Input Resistance

−15V

≤ V

3.6

5

k

Ω

R

I+

Non-Inverting Input Resistance

−15V

≤ V

1.8

2.5

k

Ω

R

T

Line Termination Resistance

T

120

170

250

Ω

I

I−

Inverting Input Current

V

3.0

4.2

mA

V

0

−0.5

mA

V

−3.0

−4.2

mA

I

I+

Non-Inverting Input Current

V

5.0

7.0

mA

V

−1.0

−1.6

mA

V

−7.0

−9.8

mA

I

CC

Power Supply Current

One Side Only

I

V

V

3.9

6.0

mA

V

9.2

14.0

mA

V

6.5

10.2

mA

V

OH

Logical “1” Output Voltage

I

2.5

4.0

5.5

V

V

OL

Logical “0” Output Voltage

I

0

0.22

0.4

V

V

SH

Logical “1” Strobe Input Voltage

I

2.1

V

V

SL

Logical “0” Strobe Input Voltage

I

0.9

V

I

SH

Logical “1” Strobe Input Current

V

0.01

5.0

µA

I

SL

Logical “0” Strobe Input Current

V

−1.0

−1.4

mA

I

SC

Output Short Circuit Current

V

−2.8

−4.5

−6.7

mA

Note 3: “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. Except for “Operating Temperature Range”

they are not meant to imply that the devices should be operated at these limits. The table of “Electrical Characteristics” provides conditions for actual device

operation.

Note 4: These specifications apply for 4.5V

Note 5: All currents into device pins shown as positive, out of device pins as negative, all voltages referenced to ground unless otherwise noted. All values shown

as max or min on absolute value basis.

Note 6: Only one output at a time should be shorted.

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