SP3490EN-L-TR Datasheet, PDF (5/12 Pages) Exar Corporation – +3.3V Low Power Full-Duplex RS-485 Transceivers with 10Mbps Data Rate

T_AMB = T_MIN to T_MAX and V_CC = +3.3V +/-5% unless otherwise noted.
PARAMETERS
MIN.
TYP.
SP3491 RECEIVER
DC Characteristics
Differential Input Threshold
-0.2
Input Hysteresis
25
Output Voltage HIGH
Vcc-0.4
Output Voltage LOW
Three-State ( High Impedance)
Output Current
Input Resistance
12
15
Input Current (A, B); V_IN = 12V
Input Current (A, B); V_IN = -7V
Short Circuit Current
SP3491 RECEIVER
AC Characteristics
Max. Transmission Rate
10
Receiver Input to Output, t_PLH
40
70
Receiver Input to Output, t_PLH
Receiver Input to Output, t_PHL
40
70
Receiver Input to Output, t_PHL
Differential Receiver Skew
4
Receiver Enable to Output
65
LOW
Receiver Enable to Output
65
HIGH
Receiver Disable from LOW
65
Receiver Disable from HIGH
65
POWER REQUIREMENTS
Supply Voltage
+3.0
Supply Current
1000
Supply Current
800
ESD Protection for R, D, DE,
+/-2
REB, A, B, Y and Z pins
ELECTRICAL CHARACTERISTICS
MAX. UNITS CONDITIONS
+0.2
0.4
+/-1
+1.0
-0.8
60
Volts
mV
Volts
Volts
µA
-7V ≤ V_CM ≤ +12V
V_CM = 0V
I_O = -1.5mA, V_ID = +200mV
I_O = +2.5mA, V_ID = -200mV
0V ≤ V_O ≤ Vcc; REB = Vcc
kΩ -7V ≤ V_CM ≤ +12V
mA DE = 0V, V_CC = 0V or 3.6V,
V_IN = 12V
mA DE = 0V, V_CC = 0V or 3.6V,
V_IN = -7V
mA 0V ≤ V_O ≤ V_CC
Mbps REB = 0V, DE = 0V
120
ns Figures 6 and 12
85
ns T_AMB = +25°C, Vcc = 3.3V, Figures
6 and 12
120
ns Figures 6 and 12
85
ns T_AMB = +25°C, Vcc = 3.3V, Figures
6 and 12
ns
|t_PHL(A)- t_PLH(A)|, |t_PHL(B)- t_PLH(B)|,
Figures 6 and 12
150
ns Figures 7 and 13; S₁ Closed, S₂
open
150
ns Figures 7 and 13; S₂ Closed, S₁
open
200
ns Figures 7 and 13; S₁ Closed, S₂
open
200
ns Figures 7 and 13; S₂ Closed, S₁
open
+3.6
2000
1500
V
µA REB, D = 0V or V_CC; DE = V_CC
µA DE = 0V
kV Human Body Model
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com

SP3490_3491_102_102710