LT1081 LINER [Linear Technology], LT1081 Datasheet - Page 12

• Manufacturer Part Number: LT1081
• Description: Advanced Low Power 5V RS232 Dual Driver/Receiver
• Manufacturer: LINER [Linear Technology]

LT1080/LT1081
RELATED PARTS
PART NUMBER
LT1180A/LT1181A
LT1780/LT1781
LT1381
LT1130A/LT1140A
LTC1383
LTC1386
12
TYPICAL APPLICATIO
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] FAX: [phone] www.linear-tech.com
SHUTDOWN
DESCRIPTION
5V Low Power 2DR/2TX RS232 Transceiver
5V Low Power 2DR/2TX RS232 Transceiver
5V Low Power 2DR/2TX RS232 Transceiver
5V RS232 Transceivers
5V Low Power 2DR/2RX RS232 Transceiver
3.3V Low Power EIA/TIA562 Transceiver
*C1
TTL OUTPUT
TTL OUTPUT
1 F
1 F
TTL INPUT
TTL INPUT
18
2
4
5
6
*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.
ON/OFF
C1
C1
C2
C2
U
+
–
+
–
LT1080
GND
Supporting an LT1039 (Triple Driver/Receiver)
16
V
5k
5k
V
V
CC
+
–
17
3
7
RS232 OUTPUT
RS232 OUTPUT
RS232 INPUT
RS232 INPUT
1 F
5V
TTL OUTPUT
TTL OUTPUT
TTL OUTPUT
TTL INPUT
TTL INPUT
TTL INPUT
1 F
18
1
9
V
V
V
CC
+
–
LT1039
GND
10
ON/OFF
30k
30k
30k
10801fd LT/TP 0400 2K REV D • PRINTED IN USA
1080/81 • TA02
COMMENTS
0.1 F Capacitors, 10kV ESD
15kV ESD
16-Pin Narrow SO Package
Up to 5DR/5RX
Low Supply Current I
Low Supply Current I
LINEAR TECHNOLOGY CORPORATION 1991
17
RS232 OUTPUT
RS232 OUTPUT
RS232 OUTPUT
RS232 INPUT
RS232 INPUT
RS232 INPUT
CC
CC
= 220 A
= 200 A