SP3493 Datasheet, PDF (2/11 Pages) Sipex Corporation – +3.3V Low Power Slew Rate Limited RS-485/RS-422 Transceivers

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_CC ............................................................................................ +6.0V
Input Voltages
Drivers ........................................................................ -0.3V to +6.0V
Receivers ................................................................................... ±14V
Output Voltages
Drivers ....................................................................................... ±14V
Receivers .................................................................... -0.3V to +6.0V
Storage Temperature ................................................. -65˚C to +150˚
Power Dissipation per Package
8-pin PDIP (derate11.8mW/^oC above +70^oC) ...................... 1000mW
8-pin NSOIC (derate 6.90mW/^oC above +70^oC) .................... 600mW
SPECIFICATIONS
T_AMB = T_MIN to T_MAX and V_CC = 3.3V ± 5% unless otherwise noted.
PARAMETERS
MIN. TYP.
SP3493 DRIVER
DC Characteristics
Differential Output Voltage
Differential Output Voltage
GND
2
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
V_OUT = HIGH
V_OUT = LOW
SP3493 DRIVER
AC Characteristics
Maximum Data Rate
250
Driver Input to Output, t_PLH
400
900
Driver Input to Output, t_PHL
400
900
Differential Driver Skew
10
Driver Rise or Fall Time
10
SP3493 RECEIVER
DC Characteristics
Differential Input Threshold 0.2
Input Hysteresis
25
Output Voltage High
Output Voltage Low
V_CC-0.4
Input Resistance
12
15
Input Current (A, B); V_IN = 12V
Input Current (A, B); V_IN = -7V
Short-Circuit Current
MAX. UNITS CONDITIONS
V_CC Volts Unloaded; R = ∞ Ω; Figure 1
V_CC Volts With Load; R = 50Ω; (RS-422);
Figure 1
V_CC Volts With Load;R = 27Ω; (RS-485); Figure 1
0.2
3
0.8
+10
+250
+250
Volts
Volts
Volts
Volts
µA
mA
mA
R = 27Ω or R = 50Ω; Figure 1
R = 27Ω or R = 50Ω; Figure 1
-7V < V_O < +12V
-7V < V_O < +12V
1500
1500
kbps
ns
ns
ns
30
ns
Figures 2 and 8
Figures 2 and 8
t_PHL(Y) - t_PLH(Y) , t_PHL(Z) - t_PLH(Z) ,
Figures 2 and 8
Figures 2 and 8
From 10% to 90%; Figures 3 and 9
+0.2
0.4
1.0
-0.8
60
Volts
mV
Volts
Volts
kΩ
mA
mA
mA
-7V < V_CM < 12V
V_CM = 0V
I_O = -1.5mA, V_ID = +200mV
I_O = +2.5mA, V_ID = -200mV
-7V < V_CM < 12V
V_IN = 12V
V_IN = -7V
0V < V_O < V_CC
10/16/02
SP3493/3494 +3.3V Low Power Slew-Rate Limited RS-485/RS-422 Transceivers
2
© Copyright 2002 Sipex Corporation