SP3080E Datasheet, PDF (6/21 Pages) Sipex Corporation – Advanced-Failsafe RS-485/RS-422 Transceiver 1/8th Unit Load, Slew-Limited, ±15kV ESD-Protected

ELECTRICAL CHARACTERISTICS
Unless otherwise stated, VCC=5V±10%, TAMB= TMIN to TMAX. Typical values at TAMB=25ºC
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
Junction temperature
165
o_C
15
IEC 1000-4-2 Air Discharge
±15
ESD Protection for A, B, Y, Z pins
IEC 1000-4-2 Contact
Human Body Model
±8
kV
±15
ESD Protection for RO, DI, DE, RE pins
Human Body Model
±2
Notes:
1. Change in Magnitude of Differential Output Voltage and Change in Magnitude of Common Mode Output Voltage are the changes in output voltage
when DI input changes state.
3. The transceivers are put into shutdown by bringing RE high and DE low. If the inputs are in this state for less than 50ns the device does not enter
shutdown. If the enable inputs are held in this state for at least 600ns the device will be in shutdown. In this low power mode most circuitry is disabled
and supply current is typically 650nA.
4.Hot-swap circuit adds pull-down resistance to first DE or RE transition.
TIMING CHARACTERISTICS
Unless otherwise stated, VCC=5V±10%, TAMB= TMIN to TMAX. Typical values at TAMB=25ºC
SP3080E
DRIVER CHARACTERISTICS:
Data Signaling Rate (1 / tUI)
Driver Propagation Delay (tPHL, tPLH)
Driver Output Rise/Fall Time (tR, tF)
Driver Differential Skew (tPLH – tPHL)
Driver Enable to Output High (tDZH)
Driver Enable to Output Low (tDZL)
Driver Disable from Output High (tDHZ)
Driver Disable from Output Low (tDLZ)
Shutdown to Driver Output Valid (tDZV)
Conditions
Duty Cycle 40 to 60%
RL = 54Ω, CL = 50pF,
Figure 3
SP3080E
Figure 4, 5
Figure 5
Min. Typ. Max. Unit
115
Kbps
500 1000 2600 ns
667 800 2500 ns
40 ±200 ns
3500 ns
3500 ns
100 ns
100 ns
6000 ns
Receiver CHARACTERISTICS:
Conditions
Min. Typ. Max. Unit
Receiver Prop. Delay
Differential Receiver Skew
CL = 15pF, VID = ±2V,
Figure 6
90 200 ns
6 ±30 ns
Receiver Output Rise/Fall Time
CL = 15pf
15 ns
Receiver Enable to Output High (tZH)
Figure 7, 8
20 50 ns
Receiver Enable to Output Low (tZL)
Figure 7, 8
16 50 ns
Receiver Disable from High (tHZ)
Figure 7, 8
20 50 ns
Receiver Disable from Low (tLZ)
Figure 7, 8
18 50 ns
Shutdown to Receiver Output Valid (tROV)
3500 ns
Time to Shutdown, Note 3,5
50 200 600 ns
Notes:
1. Change in Magnitude of Differential Output Voltage and Change in Magnitude of Common Mode Output Voltage are the changes in output voltage
when DI input changes state.
3. The transceivers are put into shutdown by bringing RE high and DE low. If the inputs are in this state for less than 50ns the device does not enter
shutdown. If the enable inputs are held in this state for at least 600ns the device will be in shutdown. In this low power mode most circuitry is disabled
and supply current is typically 650nA.
4.Hot-swap circuit adds pull-down resistance to first DE or RE transition.
5. Characterized, Not 100% tested
Rev N 9/15/2006
SP3080E Advanced RS485 Transceivers
6
© Copyright 2006 Sipex Corporation