參數(shù)資料
型號(hào)： SP491EN
元件分類： RS-485
英文描述： Full Duplex RS-485 Transceivers
中文描述： 全雙工RS - 485接口收發(fā)器
文件頁數(shù)： 2/12頁
文件大小： 83K
代理商： SP491EN
2
Date: 05/10/04
SP490/491 Full Duplex RS-485 Transceivers
Copyright 2004 Sipex Corporation
ABSOLUTE MAXIMUM RATINGS
These are stress ratings only and functional operation of the device at
these ratings or any other above those indicated in the operation sections
of the specifications below is not implied. Exposure to absolute maximum
rating conditions for extended periods of time may affect reliability.
V
....................................................................................................+7V
Input Voltages
Drivers................................................-0.5V to (V
+0.5V)
Receivers..................................................................
±
14V
Output Voltages
Drivers......................................................................
14V
Receivers...........................................-0.5V to (V
+0.5V)
Storage Temperature....................................................-65
C to +150
Power Dissipation.....................................................................1000mW
T
MIN
to T
MAX
and V
CC
= 5V
±
5% unless otherwise noted.
PARAMETERS
SP490 DRIVER
DC Characteristics
Differential Output Voltage
Differential Output Voltage
MIN.
TYP.
MAX.
UNITS
CONDITIONS
GND
2
V
CC
V
CC
Volts
Volts
Unloaded; R =
∞
;
see figure 1
With Load; R = 50
; (RS422);
see figure 1
With Load; R = 27
; (RS485);
see figure 1
Differential Output Voltage
Change in Magnitude of Driver
Differential Output Voltage for
Complimentary States
Driver Common-Mode
Output Voltage
Input High Voltage
Input Low Voltage
Input Current
Driver Short-Circuit Current
V
OUT
= HIGH
V
OUT
= LOW
1.5
V
CC
Volts
0.2
Volts
R = 27
or R = 50
;
see figure 1
3
Volts
Volts
Volts
μ
A
R = 27
or R = 50
;
see figure 1
Applies to D
Applies to D
Applies to D
2.0
0.8
±
10
35
35
250
250
mA
mA
-7V
≤
V
O
≤
+12V
-7V
≤
V
O
≤
+12V
SP490 DRIVER
AC Characteristics
Maximum Data Rate
Driver Input to Output
5
Mbps
ns
30
60
t
; R
= 54
, C
L1
= C
L2
= 100pF;
see figures 3 and 6
t
; R
= 54
, C
L1
= C
L2
= 100pF;
see figures 3 and 6
see figures 3 and 6,
t
= | t
- t
|
From 10% to 90%; R
= 54
,
C
L1
= C
L2
= 100pF;
see figures 3 and 6
Driver Input to Output
30
60
ns
Driver Skew
5
ns
Driver Rise or Fall Time
15
40
ns
SP490
RECEIVER
DC Characteristics
Differential Input Threshold
Input Hysteresis
Output Voltage High
Output Voltage Low
Input Resistance
Input Current (A, B); V
IN
= 12V
Input Current (A, B); V
IN
= -7V
Short-Circuit Current
0.2
+0.2
Volts
mV
Volts
Volts
k
mA
mA
mA
-7V
≤
V
CM
≤
12V
V
CM
= 0V
I
O
ID
= +200mV
I
= +4mA, V
= -200mV
-7V
≤
V
≤
12V
V
IN
= 12V
V
IN
= -7V
0V
≤
V
O
≤
V
CC
70
3.5
0.4
12
15
±
1.0
-0.8
85
ELECTRICAL CHARACTERISTICS
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SP491EN/TR 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Full Duplex RS-485 Transceivers
SP491EN-L 功能描述:RS-485接口IC RS485 5000 kbps temp -40C to 85C RoHS:否 制造商:Texas Instruments 數(shù)據(jù)速率:250 Kbps 工作電源電壓:3.3 V 電源電流:750 uA 工作溫度范圍:- 40 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
SP491EN-L/TR 功能描述:RS-485接口IC Full Duplex RS-485 s RoHS:否 制造商:Texas Instruments 數(shù)據(jù)速率:250 Kbps 工作電源電壓:3.3 V 電源電流:750 uA 工作溫度范圍:- 40 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
SP491ES 制造商:Exar Corporation 功能描述:
SP491ES-L 功能描述:RS-485接口IC Full Duplex RS-485 s RoHS:否 制造商:Texas Instruments 數(shù)據(jù)速率:250 Kbps 工作電源電壓:3.3 V 電源電流:750 uA 工作溫度范圍:- 40 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
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