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SP3494EP Datasheet(PDF) 2 Page - Sipex Corporation |
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SP3494EP Datasheet(HTML) 2 Page - Sipex Corporation |
2 / 11 page 2 10/16/02 SP3493/3494 +3.3V Low Power Slew-Rate Limited RS-485/RS-422 Transceivers © Copyright 2002 Sipex Corporation SPECIFICATIONS T AMB = TMIN to TMAX and VCC = 3.3V ± 5% unless otherwise noted. PARAMETERS MIN. TYP. MAX. UNITS CONDITIONS SP3493 DRIVER DC Characteristics Differential Output Voltage GND V CC Volts Unloaded; R = ∞ Ω; Figure 1 Differential Output Voltage 2 V CC Volts With Load; R = 50Ω; (RS-422); Figure 1 Differential Output Voltage 1.5 V CC Volts With Load;R = 27Ω; (RS-485); Figure 1 Change in Magnitude of Driver Differential Output Voltage for Complimentary States 0.2 Volts R = 27Ω or R = 50Ω; Figure 1 Driver Common-Mode Output Voltage 3 Volts R = 27Ω or R = 50Ω; Figure 1 Input High Voltage 2.0 Volts Input Low Voltage 0.8 Volts Input Current +10 µA Driver Short-Circuit Current V OUT = HIGH +250 mA -7V < V O < +12V V OUT = LOW +250 mA -7V < V O < +12V SP3493 DRIVER AC Characteristics Maximum Data Rate 250 kbps Driver Input to Output, t PLH 400 900 1500 ns Figures 2 and 8 Driver Input to Output, t PHL 400 900 1500 ns Figures 2 and 8 Differential Driver Skew 10 ns t PHL(Y) - tPLH(Y) , tPHL(Z) - tPLH(Z) , Figures 2 and 8 Figures 2 and 8 Driver Rise or Fall Time 10 30 ns From 10% to 90%; Figures 3 and 9 SP3493 RECEIVER DC Characteristics Differential Input Threshold 0.2 +0.2 Volts -7V < V CM < 12V Input Hysteresis 25 mV V CM = 0V Output Voltage High V CC-0.4 Volts I O = -1.5mA, VID = +200mV Output Voltage Low 0.4 Volts I O = +2.5mA, VID = -200mV Input Resistance 12 15 kΩ -7V < V CM < 12V Input Current (A, B); V IN = 12V 1.0 mA V IN = 12V Input Current (A, B); V IN = -7V -0.8 mA V IN = -7V Short-Circuit Current 60 mA 0V < V O < VCC 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 +70oC) ...................... 1000mW 8-pin NSOIC (derate 6.90mW/oC above +70oC) .................... 600mW |
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