Texas Instruments JM38510-10404BEA, SN55115J, SN75115D, SN75115DR, SN75115N Datasheet

SN55115, SN75115 DUAL DIFFERENTIAL RECEIVERS

SLLS072D ± SEPTEMBER 1973 ± REVISED MAY 1998

DChoice of Open-Collector or Active Pullup (Totem-Pole) Outputs

DSingle 5-V Supply

DDifferential Line Operation

DDual-Channel Operation

DTTL Compatible

D± 15-V Common-Mode Input Voltage Range

DOptional-Use Built-In 130-Ω Line-

Terminating Resistor

DIndividual Frequency-Response Controls

DIndividual Channel Strobes

DDesigned for Use With SN55113, SN75113, SN55114, and SN75114 Drivers

SN55115 . . . J OR W PACKAGE SN75115 . . . N PACKAGE (TOP VIEW)

1YS		1	16		VCC
1YP		2	15		2YS
1STRB		3	14		2YP
1RTC		4	13		2STRB
1B		5	12		2RTC
1RT		6	11		2B
			10
1A		7			2RT
			9
GND		8			2A

SN55114 . . . FK PACKAGE

(TOP VIEW)

DDesigned to Be Interchangeable With National DS9615 Line Receivers

description

The SN55115 and SN75115 dual differential line receivers are designed to sense small differential signals in the presence of large common-mode noise. These devices give TTL-compatible output signals as a function of the differential input voltage. The open-collector output configuration permits the wire-ANDing of similar TTL outputs (such as SN5401/SN7401) or other SN55115/SN75115 line receivers. This permits a level of logic to be implemented without extra delay.

	1YP	1YS	NC	CC	2YS
				V
1STRB	3	2	1	20 19		2YP
	4				18
1RTC	5				17	2STRB
NC	6				16	NC
1B	7				15	2RTC
1RT	8				14	2B
	9	10 11 12 13
	1A	GND	NC	2A	T
					2R

NC ± No internal connection

The output stages are similar to TTL totem-pole outputs, but with sink outputs, 1YS and 2YS, and the corresponding active pullup terminals, 1YP and 2YP, available on adjacent package pins. The frequency response and noise immunity may be provided by a single external capacitor. A strobe input is provided for each channel. With the strobe in the low level, the receiver is disabled and the outputs are forced to a high level.

The SN55115 is characterized for operation over the full military temperature range of ±55°C to 125°C. The SN75115 is characterized for operation from 0°C to 70°C.

FUNCTION TABLE

			OUTPUT
	STRB	DIFF INPUT	(YP AND YS
		(A AND B)	TIED
			TOGETHER)
	L	X	H
	H	L	H
	H	H	L

H = VI ≥ VIH min or VID more positive than VT + max

L = VI ≤ VIL max or VID more negative thanVT ± max

X = irrelevant

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.

Copyright 1998, Texas Instruments Incorporated

POST OFFICE BOX 655303 •DALLAS, TEXAS 75265

1

SN55115, SN75115

DUAL DIFFERENTIAL RECEIVERS

SLLS072D ± SEPTEMBER 1973 ± REVISED MAY 1998

logic symbol²

	5	&
	1B
		2
	7
	1A	1YP
	6
	1RT	RT
	3	1
	1STRB	1YS
	4	RSP
	1RTC
	11
	2B	14
	9
	2A	2YP
	10
	2RT	15
	13
	2STRB	2YS
	12
	2RTC

² This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.

logic diagram (positive logic)

	5
1B	2	1YP (Pullup)
	7
1A	1	1YS (Sink)
1RT	6
	4
1RTC	3
1STRB
	11
2B	14	2YP (Pullup)
	9
2A	15	2YS (Sink)
2RT	10
	12
2RTC

13

2STRB

2	POST OFFICE BOX 655303 •DALLAS, TEXAS 75265

SN55115, SN75115

DUAL DIFFERENTIAL RECEIVERS

							SLLS072D ± SEPTEMBER 1973 ± REVISED MAY 1998
schematic (each receiver)
							Response
				RT		Strobe	Time
							Control
				6,10	3,13		4,12		16
	1 k	1 k	V		2.7 k	V		2 k	VCC
									V
1.5 k	1.64 k	1.64 k	130	2.6 k	2.6 k
1 pF			1 pF
Input 7.9				500	500				20
A									2,14 Pullup
									YP
8 k			8 k
			7 k						5 k
7 k
Input 5.11							3 k
B									1,15 Sink
130	150								Output
									YS
		150			150		1.5 k		8
									GND
	Common to
Both Receivers
2.5 k
	V

150

Resistor values are nominal and in ohms.

Pin numbers shown are for the J, N, and W packages.

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)²

Supply voltage, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . .	. . . . . . . . . . 7	V
Input voltage VI (A, B, and RT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . .	. . . . . . . . ±25	V
Input voltage VI (STRB) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . .	. . . . . . . . 5.5	V
Off-state voltage applied to open-collector outputs . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . .	. . . . . . . . . 14	V
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	See Dissipation Rating Table
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . .	±65°C to 150°C
Case temperature for 60 seconds: FK package . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . .	. . . . . . . 260°C
Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds: J or W package . . . . . . . . .		. . . . . . . 300°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: N package . .	. . . . . . . . . . . .	. . . . . . . 260°C

²Stresses beyond those listed under ªabsolute maximum ratingsº 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 ªrecommended operating conditionsº is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTE 1: All voltage values, except differential input voltage, are with respect to network ground terminal.

POST OFFICE BOX 655303 •DALLAS, TEXAS 75265

3

SN55115, SN75115

DUAL DIFFERENTIAL RECEIVERS

SLLS072D ± SEPTEMBER 1973 ± REVISED MAY 1998

DISSIPATION RATING TABLE

	PACKAGE	TA ≤ 25°C	DERATING FACTOR	TA = 70°C	TA = 125°C
		POWER RATING	ABOVE TA = 25°C	POWER RATING	POWER RATING
	FK²	1375 mW	11.0 mW/°C	880 mW	275 mW
	J²	1375 mW	11.0 mW/°C	880 mW	275 mW
	N	1150 mW	9.2 mW/°C	736 mW	Ð
	W²	1000 mW	8.0 mW/°C	640 mW	200 mW

²In the FK, J, and W packages, SN55115 chips are either silver glass or alloy mounted. SN75115 chips are glass mounted.

recommended operating conditions

		SN55115			SN75115		UNIT
	MIN	NOM	MAX	MIN	NOM	MAX
Supply voltage, VCC	4.5	5	5.5	4.75	5	5.25	V
High-level input voltage at STRB, VIH	2.4			2.4			V
Low-level input voltage at STRB, VIL			0.4			0.4	V
High-level output current, IOH			± 5			± 5	mA
Low-level output current, IOL			15			15	mA
Operating free-air temperature, TA	± 55		125	0		70	°C

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