Document
uA9637AC DUAL DIFFERENTIAL LINE RECEIVER
D Meets or Exceeds the Requirements of
ANSI Standards EIA/TIA-422-B and
EIA/TIA-423-B and ITU Recommendations
V.10 and V.11
D Operates From Single 5-V Power Supply D Wide Common-Mode Voltage Range D High Input Impedance D TTL-Compatible Outputs D High-Speed Schottky Circuitry D 8-Pin Dual-in-Line and Small-Outline
Packages
D Designed to Be Interchangeable With
National DS9637A
SLLS111B – SEPTEMBER 1980 – REVISED MAY 1995
uA9637AC . . . D OR P PACKAGE (TOP VIEW)
VCC 1 1OUT 2 2OUT 3 GND 4
8 1IN+ 7 1IN – 6 2IN+ 5 2IN –
description
The uA9637AC is a dual differential line receiver designed to meet ANSI Standards EIA/TIA-422-B and EIA/TIA-423-B and ITU Recommendations V.10 and V.11. The line receiver utilizes Schottky circuitry and has TTL-compatible outputs. The inputs are compatible with either a single-ended or a differential-line system. This device operates from a single 5-V power supply and is supplied in an 8-pin dual-in-line package or small-outline package.
The uA9637AC is characterized for operation from 0°C to 70°C.
logic symbol†
logic diagram
8 1IN +
7 1IN –
6 2IN +
5 2IN –
2 1OUT
3 2OUT
† This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
8 1IN +
7 1IN –
6 2IN +
5 2IN –
2 1OUT 3 2OUT
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.
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
uA9637AC DUAL DIFFERENTIAL LINE RECEIVER
SLLS111B – SEPTEMBER 1980 – REVISED MAY 1995
schematics of inputs and outputs
EQUIVALENT OF EACH INPUT VCC
Input
8 kΩ
Current Source
TYPICAL OF ALL OUTPUTS VCC
50 Ω NOM
Output
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage range, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to 7 V Input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 15 V Differential input voltage, VID (see Note 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 15 V Output voltage range, VO (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.5 V to 5.5 V Low-level output current, IOL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA Continuous total dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table Operating free-air temperature range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C 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.
PACKAGE
D P
DISSIPATION RATING TABLE
TA ≤ 25°C POWER RATING
725 mW
1000 mW
OPERATING FACTOR ABOVE TA = 25°C 5.8 mW/°C
8.0 mW/°C
TA = 70°C
TA = 125°C
POWER RATING POWER RATING
464 mW
—
640 mW
—
2
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
uA9637AC DUAL DIFFERENTIAL LINE RECEIVER
recommended operating conditions
Supply voltage, VCC Common-mode input voltage, VIC Operating free-air temperature, TA
SLLS111B – SEPTEMBER 1980 – REVISED MAY 1995
MIN NOM MAX UNIT
4.75
5 5.25 V
±7 V
0
70 °C
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
VIT + Positive-going input threshold voltage
See Note 3
0.2 V
0.4
.