LTC1348 LINER [Linear Technology], LTC1348 Datasheet - Page 4

• Manufacturer Part Number: LTC1348
• Description: 3.3V/5V Low Power RS232 3-Driver/5-Receiver Transceiver
• Manufacturer: LINER [Linear Technology]

LTC1348
4
TYPICAL PERFORMANCE CHARACTERISTICS
–6
–1
–2
–3
–4
–5
–7
–1
–3
–4
–5
–6
–7
–2
1
7
6
5
4
3
2
0
7
6
5
4
3
2
1
0
0
0
Driver Output Voltage High/Low
vs Temperature ( C)
Driver Output Voltage High/Low
vs Load Capacitance (C
V
0.1 F FLYING CAPACITORS
ALL DRIVERS LOADED 3k + C
1 DRIVER DRIVEN
250kbps
ALL DRIVERS
LOADED WITH 3k
CC
250kbps
10
= 3.3V
1000
LOAD CAPACITANCE (pF)
20
TEMPERATURE ( C)
V
OUTPUT LOW
OUTPUT HIGH
CC
OUTPUT HIGH
2000
OUTPUT LOW
V
= 3.3V
30
CC
120kbps
120kbps
= 3.3V
3000
40
64kbps
64kbps 20kbps
L
50
)
L
V
4000
W
V
CC
CC
20kbps
= 3V
60
= 3V
LTC1348 G01
LTC1348 G04
5000
U
70
DRIVEN DRIVER
OUTPUT
DRIVER
INPUT
12
10
20
18
16
14
–3
–4
–6
–1
–2
–5
–7
6
8
4
0
1
7
6
5
4
3
2
0
–40
0
Driver Output Voltage High/Low
vs Load Capacitance (C
Driver Short-Circuit Current
vs Temperature ( C)
With V
All Driver Outputs Loaded with
3k , 1000pF. 1 Driven at 250kbps
V
V
0.1 F FLYING CAPACITORS
ALL DRIVERS DRIVEN AND
LOADED 3k + C
CC
CC
–20
I
= 3.3V
SC
120kbps
= 3.3V
120kbps
1000
+
CC
I
LOAD CAPACITANCE (pF)
SC
0
= 3.3V
TEMPERATURE ( C)
–
OUTPUT HIGH
2000
OUTPUT LOW
20
L
3000
40
64kbps
L
64kbps
60
)
20kbps
4000
LTC1348 G05
20kbps
80
LTC1348 G07
LTC1348 G02
5000
100
45
40
35
30
25
20
15
10
50
40
20
10
30
5
0
0
0
Driver Leakage in SHUTDOWN
vs Temperature ( C)
Supply Current
vs Driver Data Rate
0
V
V
CC
CC
3 OUTPUT LOADED
= 3.3V
10
= 3.3V
3k // 2500pF
50
20
TEMPERATURE ( C)
DRIVER DATA RATE
V
100
OUT
V
30
1 OUTPUT LOADED
3k // 2500pF
OUT
= –20V
= 20V
40
150
50
200
LTC1348 G06
60
LTC1348 G03
250
70