参数资料
| 型号： | LTC1484IS8#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 11/16页 |
| 文件大小： | 0K |
| 描述： | IC TXRX RS485 LOWPWR 8-SOIC |
| 标准包装： | 2,500 |
| 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： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
4
LTC1484
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
tZH(SHDN)
Driver Enable from Shutdown to Output High
CL = 100pF (Figures 5, 7) S2 Closed,
q
40
100
ns
DI = DE
tZL(SHDN)
Driver Enable from Shutdown to Output Low
CL = 100pF (Figures 5, 7) S1 Closed,
q
40
100
ns
DI = 0
tZH(SHDN) Receiver Enable from Shutdown to Output High
CL = 15pF (Figures 3, 9) S2 Closed,
q
10
s
DE = 0
tZL(SHDN)
Receiver Enable from Shutdown to Output Low
CL = 15pF (Figures 3, 9) S1 Closed,
q
10
s
DE = 0
Note 1: Absolute Maximum Ratings are those values beyond which the life of
a device may be impaired.
Note 2: All typicals are given for VCC = 5V and TA = 25°C.
Note 3: All currents into device pins are positive; all currents out of device
pins are negative. All voltages are referenced to device ground unless
otherwise specified.
Note 4: For higher ambient temperatures, the part may enter thermal
shutdown during short-circuit conditions.
Note 5: Guaranteed by design.
Note 6: Time for ICC to drop to ICC/2 when the receiver is disabled.
SWITCHING CHARACTERISTICS
U
The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 5V ±5% (Notes 2 and 3) unless otherwise noted.
TYPICAL PERFOR A CE CHARACTERISTICS
UW
INPUT VOLTAGE (V)
–0.2
–0.16
–0.12
–0.08
–0.04
0
RECEIVER
OUTPUT
VOLTAGE
(V)
1484 G01
6
5
4
3
2
1
0
TA = 25°C
VCC = 5V
VTH(HIGH)
VTH(LOW)
TEMPERATURE (
°C)
–55 –35 –15
5
25
45
65
85 105 125
RECEIVER
INPUT
THRESHOLD
VOLTAGE
(V)
1484 G02
0
–0.05
–0.10
–0.15
–0.20
–0.25
VCC = 5V
VTH(HIGH)
VCM = –7V
VCM = 12V
VCM = 0V
TEMPERATURE (
°C)
–55 –35 –15
5
25
45
65
85 105 125
RECEIVER
INPUT
THRESHOLD
VOLTAGE
(V)
1484 G03
0
–0.05
–0.10
–0.15
–0.20
–0.25
VCC = 5V
VTH(LOW)
VCM = –7V
VCM = 12V
VCM = 0V
Receiver Output Voltage vs Input
Voltage
Receiver Input Threshold Voltage
(Output High) vs Temperature
Receiver Input Threshold Voltage
(Output Low) vs Temperature
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