參數資料
型號: LTC490CN8
廠商: Linear Technology
文件頁數: 6/12頁
文件大?。?/td> 0K
描述: IC TXRX RS485 LOW POWER 8-DIP
標準包裝: 50
類型: 收發(fā)器
驅動器/接收器數: 1/1
規(guī)程: RS422,RS485
電源電壓: 4.75 V ~ 5.25 V
安裝類型: 通孔
封裝/外殼: 8-DIP(0.300",7.62mm)
供應商設備封裝: 8-PDIP
包裝: 管件
3
LTC490
490fb
Note 1: Absolute maximum ratings are those beyond which the safety of
the device cannot be guaranteed.
Note 2: 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 3: All typicals are given for VCC = 5V and Temperature = 25°C.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
tPLH
Driver Input to Output
RDIFF = 54, CL1 = CL2 = 100pF (Figures 2, 3)
q
10
30
50
ns
tPHL
Driver Input to Output
RDIFF = 54, CL1 = CL2 = 100pF (Figures 2, 3)
q
10
30
50
ns
tSKEW
Driver Output to Output
RDIFF = 54, CL1 = CL2 = 100pF (Figures 2, 3)
q
5ns
tr, tf
Driver Rise or Fall Time
RDIFF = 54, CL1 = CL2 = 100pF (Figures 2, 3)
q
55
25
ns
tPLH
Receiver Input to Output
RDIFF = 54, CL1 = CL2 = 100pF (Figures 2, 4)
q
40
70
150
ns
tPHL
Receiver Input to Output
RDIFF = 54, CL1 = CL2 = 100pF (Figures 2, 4)
q
40
70
150
ns
tSKD
tPLH – tPHL Differential Receiver Skew
RDIFF = 54, CL1 = CL2 = 100pF (Figures 2, 4)
q
13
ns
SWITCHI G CHARACTERISTICS
U
Driver Output High Voltage
Driver Differential Output Voltage
Driver Output Low Voltage
vs Output Current
TYPICAL PERFOR A CE CHARACTERISTICS
UW
OUTPUT VOLTAGE (V)
0
OUTPUT
CURRENT
(mA)
0
–24
– 48
–72
–96
12
3
4
LTC490 TPC01
TA = 25°C
OUTPUT VOLTAGE (V)
0
OUTPUT
CURRENT
(mA)
0
16
32
48
64
12
3
4
LTC490 TPC02
TA = 25°C
OUTPUT VOLTAGE (V)
0
OUTPUT
CURRENT
(mA)
0
20
40
60
80
12
3
4
LTC490 TPC03
TA = 25°C
The q denotes the specificatiions which apply over the full
operating temperature range, otherwise specifications are at TA = 25°C. VCC = 5V ±5%
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