Texas Instruments SN75146D, SN75146P Datasheet

SN75146

DUAL DIFFERENTIAL LINE RECEIVER

SLLS015B – FEBRUARY 1986 – REVISED MAY 1995

D

Meets or Exceeds the Requirements of
ANSI EIA/TIA-422-B and -423-B

D

Meets or Exceeds the Requirements of
ANSI EIA/TIA-232-E and ITU
Recommendation V.28 With External
Components

D

Meets Federal Standards 1020 and 1030

D

Built-in 5-MHz Low-Pass Filter

D

Operates From Single 5-V Power Supply

D

Wide Common-Mode Voltage Range

D

High Input Impedance

D

TTL-Compatible Outputs

D

8-Pin Dual-in-Line Package

D

Pinout Compatible With the µA9637 and
µA9639

THE SN75146 IS NOT RECOMMENDED

D OR P PACKAGE

(TOP VIEW)

V

CC

1OUT
2OUT

GND

1
2
3
4

1IN+

8

1IN–

7

2IN+

6

2IN–

5

FOR NEW DESIGNS.

description

The SN75146 is a dual differential line receiver designed to meet ANSI Standards EIA/TIA-422-B and -423-B.
The receiver is designed to have a constant impedance with input voltages of ±3 V to ±25 V allowing it to meet
the requirements of EIA/TIA-232-E and ITU recommendation V.28 with the addition of an external bias resistor .
This receiver is designed for low-speed operation below 355 kHz and has a built-in 5-MHz low-pass filter to
attenuate high-frequency noise. The inputs are compatible with either a single-ended or a differential line
system and the outputs are TTL compatible. This device operates from a single 5-V power supply and is
supplied in both the 8-pin dual-in-line and small-outline packages.

The SN75146 is characterized for operation from 0°C to 70°C.

logic symbol

1IN+
1IN–
2IN+
2IN–

†

This symbol is in accordance with ANSI/IEEE Std 91-1984 and
IEC Publication 617-12.

†

8
7
6
5

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

1OUT

3

2OUT

logic diagram

1IN+
1IN–

2IN+
2IN–

8
7

6
5

2

1OUT

3

2OUT

PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Copyright  1995, Texas Instruments Incorporated

1

SN75146
DUAL DIFFERENTIAL LINE RECEIVER

SLLS015B – FEBRUARY 1986 – REVISED MAY 1995

schematics of inputs and outputs

EQUIVALENT OF EACH INPUT TYPICAL OF ALL OUTPUTS

V

CC

Input

740 Ω NOM

7.4 kΩ NOM

740 Ω NOM

R1

7.41 R1

V

CC

50 Ω NOM

Output

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)

Supply voltage range, V
Input voltage, V

±25 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

I

Differential input voltage, V
Output voltage range, V
Low-level output current, I

Continuous total dissipation See Dissipation Rating Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating free-air temperature range, T
Storage temperature range, T

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

†

Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTES: 1. All voltage values, except differential input voltage, are with respect to the network ground terminal.

2. Differential input voltage is measured at the noninverting input with respect to the corresponding inverting input.

(see Note 1) –0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CC

(see Note 2) ±25 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ID

(see Note 1) –0.5 V to 5.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

O

50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

OL

0°C to 70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

stg

A

†

PACKAGE

D 725 mW 5.8 mW/°C 464 mW
P 1000 mW 8.0 mW/°C 640 mW

POWER RATING

recommended operating conditions

Supply voltage, V
Common-mode input voltage, V
Operating free-air temperature, T

2

CC

IC

A

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

DISSIPATION RATING TABLE

TA ≤ 25°C

OPERATING FACTOR

ABOVE TA = 25°C

TA = 70°C

POWER RATING

MIN NOM MAX UNIT

4.75 5 5.25 V
±7 V

0 25 70 °C

VITThreshold input voltage (V

and V

)

V

riInput resistance

II

,

6

7.8

10.5

kΩ

IIInput current

CC

,

mA

C

See Figure 1

SN75146

DUAL DIFFERENTIAL LINE RECEIVER

SLLS015B – FEBRUARY 1986 – REVISED MAY 1995

electrical characteristics over recommended ranges of supply voltage, common-mode input
voltage, and operating free-air temperature (unless otherwise noted)

PARAMETER TEST CONDITIONS MIN TYP†MAX UNIT

‡

p

V
V
V
V

I
I

†
‡

§
NOTES: 3. The expanded threshold parameter is tested with a 500-Ω resistor in series with each input.

Hysteresis (V

hys

Input bias voltage II = 0 2 2.4 V

IB

High-level output voltage VID = 0.2 V, IO = –1 mA 2.5 3.5 V

OH

Low-level output voltage VID = –0.2 V, IO = 20 mA 0.35 0.5 V

OL

p

p

Short-circuit output current

OS

Supply current VID = –0.5 V, No load 35 50 mA

CC
All typical values are at VCC = 5 V, TA = 25°C.

The algebraic convention, in which the less positive (more negative) limit is designated as minimum, is used in this data sheet for threshold levels
only.
Only one output should be shorted at a time, and duration of the short circuit should not exceed one second.

4. ri is defined by ∆VI/∆II.

5. The input not under test is grounded.

IT+

– V

IT–

IT+

) 70 mV

§

IT–

See Note 3 –0.4

V

= 3 V to 25 V or V

See Note 4
V

= 0 to 5.5 V,

See Note 5
VO = 0, VID = 0.2 V –40 –75 –100 mA

= –3 V to –25 V,

VI = 10 V 1.1 3.25
VI = –10 V –1.6 –3.25

–0.2

‡

0.2

0.4

switching characteristics, VCC = 5 V, TA = 25°C

PARAMETER TEST CONDITIONS MIN TYP MAX UNIT

t

PLH

t

PHL

Propagation delay time, low-to-high-level output
Propagation delay time, high-to-low-level output

PARAMETER MEASUREMENT INFORMATION

392 Ω

V

CC+

(see Note B)

CC+

Input

51 Ω

CL = 30 pF

(see Note A)

TEST CIRCUIT

NOTES: A. CL includes probe and jig capacitance.

B. The input pulse is supplied by a generator having the following characteristics: tr ≤ 5 ns, tf ≤ 5 ns, PRR ≤ 300 kHz,

duty cycle = 50%.

OutputV

3.92 kΩ

= 30 pF,

L

0.5 V
Input

–0.5 V

p

50% 50%

t

PLH

1.5 V 1.5 VOutput

VOLTAGE WAVEFORMS

100 150 300 ns
100 150 300 ns

t

PHL

V

OH

V

OL

Figure 1. Test Circuit and Voltage Waveforms

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

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