English
Language : 

SP3483 Datasheet, PDF (2/9 Pages) Sipex Corporation – +3.3V Low Power Slew Rate Limited Half-Duplex RS-485 Transceiver
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.
VCC............................................................................................................+7V
Input Voltages
Logic........................................................-0.3V to (VCC+0.5V)
Drivers..................................................-0.3V to (VCC+0.5V)
Receivers................................................................. ±15V
Output Voltages
Logic........................................................-0.3V to (VCC+0.5V)
Drivers...................................................................... ±15V
Receivers............................................-0.3V to (VCC+0.5V)
Storage Temperature.......................................................-65˚C to +150˚C
Power Dissipation per package
8-pin NSOIC (derate 6.14mW/˚C above +70˚C).........................500mW
8-pin PDIP (derate 11.8mW/˚C above +70˚C)..........................1000mW
SPECIFICATIONS
TMIN to TMAX and VCC = +3.3V ± 5% unless otherwise noted.
PARAMETERS
MIN. TYP.
MAX.
DRIVER
DC Characteristics
Differential Output Voltage GND
VCC
Differential Output Voltage
2
VCC
UNITS
Volts
Volts
Differential Output Voltage
1.5
Change in Magnitude of Driver
Differential Output Voltage for
Complimentary States
Driver Common-Mode
Output Voltage
Input High Voltage
2.0
Input Low Voltage
Input Current
Driver Short-Circuit Current
VOUT = HIGH
VOUT = LOW
DRIVER
AC Characteristics
Maximum Data Rate
250
VCC Volts
0.2
3
0.8
±10
±250
±250
Volts
Volts
Volts
Volts
µA
mA
mA
kbps
Driver Input to Output, tPLH
400
900
Driver Input to Output, tPHL
400
900
Differential Driver Skew
10
Driver Rise or Fall Time
700
Driver Enable to Output High
700
Driver Enable to Output Low
690
Driver Disable Time from Low
80
Driver Disable Time from High
90
RECEIVER
DC Characteristics
Differential Input Threshold -0.2
Input Hysteresis
20
Output Voltage High
Output Voltage Low
VCC-0.4
Three-State (High Impedance)
Output Current
Input Resistance
12
15
Input Current (A, B); VIN = 12V
Input Current (A, B); VIN = -7V
Short-Circuit Current
7
1500 ns
1500 ns
ns
1000 ns
1300 ns
1300 ns
120
ns
120
ns
+0.2 Volts
mV
Volts
0.4 Volts
+1
µA
kΩ
1.0 mA
-0.8 mA
60
mA
CONDITIONS
Unloaded; R = ∞; Figure 1
with load; R = 50Ω; (RS-422); Figure 1
with load; R = 27Ω; (RS-485); Figure 1
R = 27Ω or R = 50Ω; Figure 1
R = 27Ω or R = 50Ω; Figure 1
Applies to DE, DI, RE
Applies to DE, DI, RE
Applies to DE, DI, RE
-7V ≤ VO ≤ +12V
-7V ≤ VO ≤ +12V
RE = VCC, DE = VCC
Figures 2 and 8
Figures 2 and 8
tDO1 - tDO2 Figures 2 and 9
From 10% to 90% Figures 3 and 9
Figures 4 and 10
Figures 5 and 10
Figures 5 and 10
Figures 4 and 10
-7V ≤ VCM ≤ +12V
VCM = 0V
VID = +200mV, -1.5mA
VID = -200mV, 2.5mA
0V ≤ VO ≤ VCC; RE = VCC
-7V ≤ VCM ≤ +12V
DE = 0V, VCC = 0V or 3.6V, VIN = 12V
DE = 0V, VCC = 0V or 3.6V, VIN = -7V
0V ≤ VCM ≤ VCC
SP3483 DS/04
SP3483 Low Power Slew Rate Limited Half-Duplex RS485 Transceivers
2
© Copyright 2000 Sipex Corporation