SP3070E Datasheet, PDF (4/20 Pages) Exar Corporation – ±15kV ESD-Protected, 3.3V, 1/8 Load, Failsafe RS-485/RS422 Transceivers

ELECTRICAL CHARACTERISTICS
Unless otherwise noted V_CC = +3.3 ±0.3V, ambient temperature T_MIN < T_A < T_MAX. Typical values are at V_CC = 3.3,
ambient temperature T_A = +25ºC. The ♦ denotes the specifications which apply over the full operating range un-
less otherwise noted.
PARAMETERS
SYM MIN TYP MAX UNITS ♦
CONDITIONS
Input Current (A and B)
Half Duplex
Thermal-Shutdown Threshold
Thermal Shutdown Hysteresis
RECEIVER
Receiver Differential Threshold
(Sensitivity)
Receiver Input Hysteresis
RO Output High Voltage
RO Output Low Voltage
Tri-State Output Current at
Receiver
Receiver Input Resistance
Receiver Output Short-Circuit
Current
SUPPLY CURRENT
I_A,B
-100
125
µA
♦
DE = GND
V_CC = GND or 3.6
V_IN = +12V
V_IN = -7V
T_TS
165
ºC ♦
T_TSH
15
ºC ♦
V_TH -200 -125 -50
mV
- 7 V ≤ V_CM ≤ 1 2 V
∆ V _TH
15
V_OH
Vcc -
0.6
V_OL
0.4
mV ♦ Va + Vb = 0V
V
♦ I_O = -1mA
V
♦ I_O = 1mA
I_OZR
+/-1
µA
♦ 0 ≤ V _O ≤ V _CC
R_IN
96
kΩ
♦ -7V ≤V_CM ≤ 1 2 V
I_OZR
±60 mA
0 V ≤ V _RO ≤ V _CC
Supply Current
I_CC
Supply Current in Shutdown
mode
I_SHDN
ESD PROTECTION
0.8 1.5
0.8 1.5
0.8 1.5
0.05 3
No Load, RE = 0, DE = V_CC
mA
♦ No Load, RE = V_CC , DE = V_CC
No Load, RE = 0, DE = 0
µA
RE = V_CC , DE = GND
±15
ESD Protection for Y, Z, A, and B
±15
Human Body Model
kV ♦ Air Gap (IEC 1000-4-2)
±8
Contact (IEC 1000-4-2)
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com
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SP3070E-SP3078E_100_061109