DS8820 datasheet(2/8 Pages) NSC

2 / 8 page

Absolute Maximum Ratings (Note 3)

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

±20V

Differential Input Voltage

±20V

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

CC)

DS7820A

4.5

5.5

DS8820A

4.75

5.25

Temperature (T

DS7820A

−55

+125

˚C

DS8820A

+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.

Electrical Characteristics (Notes 4, 5, 6)

Symbol

Parameter

Conditions

Min

Typ

Max

Units

Differential Threshold Voltage

OUT = −400 µA,

−3V

≤ V

CM ≤ +3V

0.06

0.5

OUT ≥ 2.5V

−15V

≤ V

CM ≤ +15V

0.06

1.0

OUT = +16 mA,

−3V

≤ V

CM ≤ +3V

−0.08

−0.5

OUT ≤ 0.4V

−15V

≤ V

CM ≤ +15V

−0.08

−1.0

I−

Inverting Input Resistance

−15V

≤ V

CM ≤ +15V

3.6

Ω

I+

Non-Inverting Input Resistance

−15V

≤ V

CM ≤ +15V

1.8

2.5

Ω

Line Termination Resistance

A = 25˚C

120

170

250

Ω

I−

Inverting Input Current

CM = 15V

3.0

4.2

CM = 0V

−0.5

CM = −15V

−3.0

−4.2

I+

Non-Inverting Input Current

CM = 15V

5.0

7.0

CM = 0V

−1.0

−1.6

CM = −15V

−7.0

−9.8

Power Supply Current

One Side Only

OUT = Logical “0”

DIFF = −1V

CM = 15V

3.9

6.0

CM = −15V

9.2

14.0

DIFF = −0.5V, VCM = 0V

6.5

10.2

Logical “1” Output Voltage

OUT = −400 µA, VDIFF = 1V

2.5

4.0

5.5

Logical “0” Output Voltage

OUT = +16 mA, VDIFF = −1V

0.22

0.4

Logical “1” Strobe Input Voltage

OUT = +16 mA, VOUT ≤ 0.4V, VDIFF = −3V

2.1

Logical “0” Strobe Input Voltage

OUT = −400 µA, VOUT ≥ 2.5V, VDIFF = −3V

0.9

Logical “1” Strobe Input Current

STROBE = 5.5V, VDIFF = 3V

0.01

5.0

µA

Logical “0” Strobe Input Current

STROBE = 0.4V, VDIFF = −3V

−1.0

−1.4

Output Short Circuit Current

O = 0V, VCC = 5.5V, VSTROBE = 0V

−2.8

−4.5

−6.7

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

≤ VCC ≤ 5.5V, −15V ≤ VCM ≤ 15V and −55˚C ≤ TA ≤ +125˚C for the DS7820A or 4.75V ≤ VCC ≤ 5.25V, 0˚C ≤ TA ≤ +70˚C

for the DS8820A unless otherwise specified. Typical values given are for VCC = 5.0V, TA = 25˚C and VCM = 0V unless stated differently.

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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