NSC 5962-8752201CA, 5962-87522012A Datasheet

DS9622
Dual Line Receiver

General Description

The DS9622 is a dual line receiver designed to discriminate
a worst case logic swing of 2V from a

±

10V common mode
noise signal or ground shift.A 1.5V threshold is built into the
differential amplifier to offer a TTL compatible threshold volt­age and maximum noise immunity. The offset is obtained by
use of current sources and matched resistors.

The DS9622 allows the choice of output states with the input
open, without affecting circuit performance by use of S3. A
130Ω terminating resistor is provided at the input of eachline
receiver. An enable is also provided for each line receiver.
The output is TTL compatible. The output high level can be
increased to 12V by tying it to a positive supply through a re­sistor. The output circuits allow wired-OR operation.

Features

n TTL compatible threshold voltage
n Input terminating resistors
n Choice of output state with inputs open
n TTL compatible output
n High common mode
n Wired-OR capability
n Enable inputs
n Logic compatible supply voltages

Connection Diagram

14–Lead DIP

DS009760-2

Top View

For Complete Military 883 Specifications, see RETS Datasheet.

Order Number DS9622ME/883,

DS9622MJ/883 or DS9622MW/883

See NS Package Number E20A, J14A or W14B

October 1993

DS9622 Dual Line Receiver

© 1999 National Semiconductor Corporation DS009760 www.national.com

Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.

Storage Temperature Range −65˚C to +175˚C
Operating Temperature Range −55˚C to +125˚C
Lead Temperature

(Soldering, 60 sec.) 300˚C
Internal Power Dissipation (Note 5) 400 mW
V

+

to GND −0.5V to +7.0V

Input Voltage

±

15V

Voltage Applied to Outputs

for Output High State −0.5V to +13.2V

V

−

to GND −0.5V to −12V

Enable to GND −0.5V to +15V

Operating Conditions

Min Max Units

Supply Voltage, V

CC

4.5 5.5 V

Temperature, T

A

−55 +125 ˚C

Electrical Characteristics (Notes 2, 3)

Symbol Parameter Conditions Min Max Units

V

OL

Output Voltage LOW V

+

=S3=

4.5V, V

−

=

−11V,

V

DIFF

=

2.0V, I

OL

=

12.4 mA, 0.4 V

EN=Open

V

OH

Output Voltage HIGH V

+

=

4.5V, V

−

=

−9.0V,

S3=0V, V

DIFF

=

1.0V, 2.8 V

I

OH

=

−0.2 mA, EN=Open

I

CEX

Output Leakage Current V

+

=

4.5V, V

−

=

−11V,

S3=0V, V

DIFF

=

1.0V, 200 µA

V

O

=

12V, EN=Open

I

OS

Output Short Circuit V

+

=

5.0V, V

−

=

−10V,

Current (Note 4) V

DIFF

=

1.0V, V

O

=S3=

0V, −3.1 −1.4 mA

EN=Open

I

R

(EN) Enable Input V

+

=S3=

4.5V, V

−

=

−11V, 5.0 µA

Leakage Current I

N

=

Open, EN=4.0V

I

F

(EN) Enable Input V

+

=

5.5V, V

−

=

−9.0V −1.5 mA

Forward Current V

I

=

Open, EN=S3=0V

I

F

(+IN) +Input Forward Current V

+

=

5.0V, V

−

=

−10V,

V

I

+

=

0V, V

I

−

=

GND, −2.3 mA

EN=S3=Open

I

F

(−IN) −Input Forward Current V

+

=S3=

5.0V, V

−

=

−10V,

V

I

+

=

GND, V

I

−

=

0V, −2.6 mA

EN=Open

V

IL

(EN) Input Voltage LOW 4.5V ≤ V+≤ 5.5V, +25˚C 1.0 V

−11V ≤ V

−

≤ −9.0V, +125˚C 0.7 V

EN=Open −55˚C 1.3 V

V

TH

Differential Input 4.5V, ≤ V+≤ 5.5V,
Threshold Voltage −11V ≤ V

−

≤ −9.0V, 1.0 2.0 V

EN=Open

V

CM

Common Mode Voltage V

+

=

5.0V, V

−

=

−10V, 25˚C −10 +10 V

1.0V ≤ V

DIFF

≤ 2.0V

R

T

Terminating Resistance 25˚C 91 215 Ω

I

+

Positive Supply Current V

+

=S3=

V

I

+

=

5.5V, 25˚C 22.9 mA

I

−

Negative Supply Current V

−

=

11V, V

I

−

=

0V −11.1 mA

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Electrical Characteristics (Notes 2, 3) (Continued)

Symbol Parameter Conditions Min Max Units

SWITCHING CHARACTERISTICS T

A

=

25˚C

t

PLH

Propagation Delay V

+

=

5.0V,

V

−

=

−10V,

0V ≤ V

I

≤ 3.0V,

C

L

=

30 pF

(See

Figure 1

)

R

L

=

3.9 kΩ 50 ns

to High Level

t

PHL

Propagation Delay R

L

=

390Ω

to Low Level 50 ns

Note 1: “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. They are not meant to imply that the devices
should be operated at these limits. The tables of “Electrical Characteristics” provide conditions for actual device operation.

Note 2: Unless otherwise specified Min/Max limits apply across the −55˚C to +125˚C temperature range. All typicals are given for V

CC

=

5V and T

A

=

25˚C.

Note 3: All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to ground unless otherwise specified.
Note 4: Only one output at a time should be shorted.
Note 5: Rating applies to ambient temperatures up to +125˚C. Above 125˚C ambient, derate linearity at 120˚C/W.

Switching Time Test Circuit and Waveforms

Equivalent Circuit

DS009760-4

DS009760-5

FIGURE 1.

DS009760-6

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