LT1080/LT1081
U
TYPICAL APPLICATIO
Supporting an LT1039 (Triple Driver/Receiver)
SHUTDOWN
5V
18
17
18
17
ON/OFF
V
V
ON/OFF
LT1039
CC
CC
LT1080
TTL INPUT
TTL INPUT
TTL INPUT
TTL INPUT
RS232 OUTPUT
RS232 OUTPUT
RS232 OUTPUT
RS232 OUTPUT
RS232 OUTPUT
RS232 INPUT
TTL INPUT
RS232 INPUT
RS232 INPUT
TTL OUTPUT
TTL OUTPUT
5k
30k
30k
30k
RS232 INPUT
RS232 INPUT
TTL OUTPUT
2
TTL OUTPUT
TTL OUTPUT
5k
+
*C1
1µF
C1
4
5
–
+
C1
C2
C2
3
7
1
9
+
+
–
V
V
V
V
1µF
6
–
–
GND
16
GND
10
1µF
1µF
1080/81 • TA02
*IN APPLICATIONS WHERE A SEPARATE SECOND POSITIVE SUPPLY IS AVAILABLE
(SUCH AS 5V AND 12V), THE 12V SUPPLY MAY BE CONNECTED TO PIN 2 AND
C1 DELETED. THE POWER SUPPLY CIRCUITRY WILL THEN INVERT THE 12V SUPPLY.
THE 5V SUPPLY IS STILL NEEDED TO POWER THE BIASING CIRCUITRY AND RECEIVERS.
RELATED PARTS
PART NUMBER
LT1180A/LT1181A
LT1780/LT1781
LT1381
DESCRIPTION
COMMENTS
5V Low Power 2DR/2TX RS232 Transceiver
5V Low Power 2DR/2TX RS232 Transceiver
5V Low Power 2DR/2TX RS232 Transceiver
5V RS232 Transceivers
0.1µF Capacitors, 10kV ESD
15kV ESD
16-Pin Narrow SO Package
Up to 5DR/5RX
LT1130A/LT1140A
LTC1383
5V Low Power 2DR/2RX RS232 Transceiver
3.3V Low Power EIA/TIA562 Transceiver
Low Supply Current I = 220µA
CC
LTC1386
Low Supply Current I = 200µA
CC
10801fd LT/TP 0400 2K REV D • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 1991
LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
12
●
●
(408)432-1900 FAX:(408)434-0507 www.linear-tech.com
Linear [ Linear ]
