LT1280ACN Linear Technology, LT1280ACN Datasheet - Page 4

• Manufacturer Part Number: LT1280ACN
• Description: IC DRVR/RCVR 5V RS232 DUAL 18DIP
• Manufacturer: Linear Technology
• Type: Transceiverr

Specifications of LT1280ACN

• Number Of Drivers/receivers: 2/2
• Protocol: RS232
• Voltage - Supply: 4.5 V ~ 5.5 V
• Mounting Type: Through Hole
• Package / Case: 18-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

LT1280A/LT1281A
4
TYPICAL PERFOR
2.00
0.50
3.00
2.75
2.50
2.25
1.75
1.50
1.25
1.00
0.75
15
25
20
10
0
5
–55
–55
Receiver Input Thresholds
Supply Current
–25
–25
2 DRIVERS LOADED R
1 DRIVER LOADED R
NO LOAD
0
0
TEMPERATURE (°C)
TEMPERATURE (°C)
INPUT HIGH
INPUT LOW
30
50
40
20
10
25
25
0
–55
Receiver Short-Circuit Current
50
50
–25
L
L
= 3k
75
75
= 3k
0
TEMPERATURE ( C)
W
LT1280A • TPC04
LT1280A • TPC07
RX I
100
100
25
A
SC
RX I
+
U
125
125
50
SC
CE
–
75
C
LT1280A • TPC10
HARA TERISTICS
100
0.1
100
50
40
30
20
10
10
0
1
–55
0
Driver Leakage in Shutdown
Supply Current vs Data Rate
2 DRIVERS ACTIVE
R
C
125
L
L
–25
= 3k
= 2500pF
25
C
0
DATA RATE (kBAUD)
TEMPERATURE (°C)
50
25
75
V
OUT
V
50
OUT
= –30V
100
= 30V
75
16
14
12
10
LT1280A • TPC08
8
6
4
2
0
LT1280A • TPC05
125
Slew Rate vs Load Capacitance
0
100
0.5
150
125
1.0
LOAD CAPACITANCE (nF)
1.5
–SLEW
2.0
3.0
2.5
1.5
1.0
2.0
0.5
30
25
15
10
20
0
0
2.5
5
–55
–55
Driver Short-Circuit Current
ON/OFF Thresholds
+SLEW
3.0
–25
–25
3.5
4.0
LT1280A • TPC11
0
0
TEMPERATURE (°C)
TEMPERATURE ( C)
OFF THRESHOLD
ON THRESHOLD
4.5
25
25
5.0
50
50
75
75
I
I
LT1280A • TPC06
SC
SC
LT1280A • TPC09
+
–
100
100
125
125