参数资料
型号: LTC1482CN8#PBF
厂商: Linear Technology
文件页数: 12/16页
文件大小: 0K
描述: IC TXRX RS485 LOWPWR 8-DIP
标准包装: 50
类型: 收发器
驱动器/接收器数: 1/1
规程: RS422,RS485
电源电压: 4.75 V ~ 5.25 V
安装类型: 通孔
封装/外壳: 8-DIP(0.300",7.62mm)
供应商设备封装: 8-PDIP
包装: 管件
5
LTC1482
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Receiver Input Offset Voltage vs
Temperature
Receiver Hysteresis vs
Temperature
Receiver Input Threshold Voltage
vs Supply Voltage
Carrier Detect Output Voltage vs
Receiver Input Voltage
Carrier Detect Threshold Voltage
(Output High) vs Temperature
Carrier Detect Threshold Voltage
(Output Low) vs Temperature
Receiver Output High Voltage vs
Temperature
Carrier Detect Output High
Voltage vs Output Current
Receiver and Carrier Detect
Output Low Voltage vs Output
Current
TEMPERATURE (
°C)
–55 –35 –15
5
25
45
65
85 105 125
RECEIVER
INPUT
OFFSET
VOLTAGE
(mV)
1482 G04
0
–20
–40
–60
–80
–100
–120
–140
–160
–180
–200
VCC = 5V
VCM = –7V
VCM = 12V
VCM = 0V
TEMPERATURE (
°C)
–55 –35 –15
5
25
45
65
85 105 125
HYSTERESIS
(mV)
1482 G05
100
90
80
70
60
50
40
30
20
10
0
VCC = 5V
VCM = –7V TO 12V
SUPPLY VOLTAGE (V)
4.5
4.75
5
5.25
5.5
RECEIVER
INPUT
THRESHOLD
VOLTAGE
(V)
1482 G06
0
–0.02
–0.04
–0.06
–0.08
–0.10
–0.12
–0.14
–0.16
–0.18
–0.20
TA = 25°C
VTHRO(HIGH)
VTHRO(LOW)
RECEIVER INPUT VOLTAGE (V)
–0.25
–0.15
–0.05
0.05
0.15
0.25
CARRIER
DETECT
OUTPUT
VOLTAGE
(V)
1482 G07
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
POSITIVE
V
THCD(LOW)
NEGATIVE
V
THCD(LOW)
NEGATIVE,
V
THCD(HIGH)
POSITIVE,
V
THCD(HIGH)
TEMPERATURE (
°C)
CARRIER
DETECT
THRESHOLD
VOLTAGE
(V)
1482 G08
0.25
0.20
0.15
0.10
0.05
0
–0.05
–0.10
–0.15
–0.20
–0.25
VCC = 5V
POSITIVE
VTHCD(HIGH)
NEGATIVE
VTHCD(HIGH)
–55 –35 –15
5
25
45
65
85 105 125
VCM = 12V
VCM = –7V
VCM = 0V
VCM = 12V
VCM = –7V
VCM = 0V
TEMPERATURE (
°C)
CARRIER
DETECT
THRESHOLD
VOLTAGE
(V)
1482 G09
0.25
0.20
0.15
0.10
0.05
0
–0.05
–0.10
–0.15
–0.20
–0.25
VCC = 5V
POSITIVE
VTHCD(LOW)
NEGATIVE
VTHCD(LOW)
–55 –35 –15
5
25
45
65
85 105 125
VCM = 12V
VCM = –7V
VCM = 12V
VCM = –7V
VCM = 0V
TEMPERATURE (
°C)
–55 –35 –15
5
25
45
65
85 105 125
RECEIVER
OUTPUT
HIGH
VOLTAGE
(V)
1482 G10
4.5
4.4
4.3
4.2
4.1
4.0
3.9
3.8
3.7
3.6
3.5
VCC = 4.75V
IOUT = –8mA
OUTPUT CURRENT (
A)
–35
–30
–25
–20
–15
–10
–5
0
CARRIER
DETECT
OUTPUT
HIGH
VOLTAGE
(V)
1482 G11
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
VCC = 4.75V
TA = 25°C
OUTPUT LOW VOLTAGE (V)
0
0.2 0.4 0.6 0.8
1
1.2 1.4 1.6 1.8
2
OUTPUT
CURRENT
(mA)
1482 G12
40
35
30
25
20
15
10
5
0
TA = 25°C
VCC = 4.75
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