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