5
LTC1334
TYPICAL PERFORMANCE CHARACTERISTICS
U
W
Receiver Output Current
vs Output High Voltage
RS232 Receiver Input Threshold
Voltage vs Temperature
Receiver Output Current
vs Output Low Voltage
OUTPUT VOLTAGE (V)
2.0
OUTPUT
CURRENT
(mA)
2.5
3.0
3.5
4.0
LTC1334 TPC04
4.5
20
18
16
14
12
10
8
6
4
2
0
5.0
TA = 25°C
VCC = 5V
OUTPUT VOLTAGE (V)
0
0.5
OUTPUT
CURRENT
(mA)
1.0
2.0
1.5
2.5
3.0
LTC1334 TPC05
40
35
30
25
20
15
10
5
0
TA = 25°C
VCC = 5V
TEMPERATURE (
°C)
–50
INPUT
THRESHOLD
VOLTAGE
(V)
2.0
1.8
1.6
1.4
1.2
1.0
0.8
25
75
LTC1334 TPC06
–25
0
50
100
125
INPUT HIGH
INPUT LOW
VCC = 5V
Charge Pump Output Voltage
vs Temperature
Supply Current
vs Temperature (RS232)
Supply Current
vs Temperature (RS485)
TEMPERATURE (
°C)
–50
OUTPUT
VOLTAGE
(V)
10
8
6
4
2
0
–2
–4
–6
–8
–10
0
50
75
LTC1334 TPC07
–25
25
100
125
VDD (NO LOAD)
VDD (–10mA LOAD)
VEE (10mA LOAD)
VEE (NO LOAD)
VCC = 5V
TEMPERATURE (
°C)
–50
0
SUPPLY
CURRENT
(mA)
10
25
0
50
75
LTC1334 TPC08
5
20
15
–25
25
100
125
VCC = 5V
NO LOAD
SEL 1 = SEL 2 = HIGH
TEMPERATURE (
°C)
–50
SUPPLY
CURRENT
(mA)
10
9
8
7
6
5
4
3
2
1
0
50
75
LTC1334 TPC09
–25
25
100
125
VCC = 5V
NO LOAD
SEL 1 = SEL 2 = HIGH
RS485 Driver Differential Output
Voltage vs Temperature
RS485 Driver Skew
vs Temperature
RS485 Driver Differential Output
Current vs Output Voltage
TEMPERATURE (
°C)
–50
DIFFERENTIAL
OUTPUT
VOLTAGE
(V)
2.6
2.5
2.4
2.3
2.2
2.1
2.0
1.9
1.8
1.7
1.6
0
50
75
LTC1334 TPC10
–25
25
100
125
RL = 54
VCC = 5V
DIFFERENTIAL OUTPUT VOLTAGE (V)
0
70
60
50
40
30
20
10
0
34
LTC1334 TPC11
12
5
DIFFERENTIAL
OUTPUT
CURRENT
(mA)
TA = 25°C
VCC = 5V
TEMPERATURE (
°C)
–50
TIME
(
s)
15
12
9
6
3
0
50
75
LTC1334 TPC12
–25
25
100
125
VCC = 5V