SP481E Datasheet, PDF (3/11 Pages) Sipex Corporation – Enhanced Low Power Half-Duplex RS-485 Transceivers

SPECIFICATIONS (continued)
T_MIN to T_MAX and V_CC = 5V ± 5% unless otherwise noted.
PARAMETERS
MIN.
SP481E/SP485E RECEIVER
DC Characteristics
Differential Input Threshold -0.2
Differential Input Threshold -0.4
(SP485EMN ONLY)
Input Hysteresis
Output Voltage High
3.5
Output Voltage Low
Three-State (High Impedance)
Output Current
Input Resistance
12
Input Current (A, B); V_IN = 12V
Input Current (A, B); V_IN = -7V
Short-Circuit Current
7
SP481E/SP485E RECEIVER
AC Characteristics
Maximum Data Rate
10
Receiver Input to Output
20
TYP.
20
15
45
Receiver Input to Output
20
45
Diff. Receiver Skew It_PLH-t_PHLI
13
Receiver Enable to
Output Low
45
Receiver Enable to
Output High
45
Receiver Disable from Low
45
Receiver Disable from High
45
SP481E
Shutdown Timing
Time to Shutdown
50
200
Driver Enable from Shutdown
to Output High
40
Driver Enable from Shutdown
to Output Low
40
Receiver Enable from
Shutdown to Output High
300
Receiver Enable from
Shutdown to Output Low
300
POWER REQUIREMENTS
Supply Voltage
Supply Current
SP481E/485E
+4.75
No Load
900
600
SP481E
Shutdown Mode
ENVIRONMENTAL AND MECHANICAL
Operating Temperature
Commercial (_C_)
0
Industrial (_E_)
-40
(_M_)
-40
Storage Temperature
-65
Package
Plastic DIP (_P)
NSOIC (_N)
MAX. UNITS CONDITIONS
+0.2 Volts
+0.4 Volts
mV
Volts
0.4 Volts
±1 µA
kΩ
+1.0 mA
-0.8 mA
95 mA
-7V ≤ V_CM ≤ +12V
-7V ≤ V_CM ≤ +12V
V_CM = 0V
I_O = -4mA, V_ID = +200mV
I_O = +4mA, V_ID = -200mV
0.4V ≤ V_O ≤ 2.4V; RE = 5V
-7V ≤ V_CM ≤ +12V
DE = 0V, V_CC = 0V or 5.25V, V_IN = 12V
DE = 0V, V_CC = 0V or 5.25V, V_IN = -7V
0V ≤ V_O ≤ V_CC
Mbps
100 ns
100 ns
ns
70 ns
70 ns
70 ns
70 ns
RE = 0V, DE = 0V
t_PLH; R_DIFF = 54Ω,
C_L1 = C_L2 = 100pF; Figures 3 & 7
t_PHL; R_DIFF = 54Ω,
C_L1 = C_L2 ⁼ 100pF; Figures 3 & 7
R_DIFF = 54Ω; C_L1 = C_L2 = 100pF;
Figures 3 & 7
C_RL = 15pF; Figures 2 & 8; S₁ closed
C_RL = 15pF; Figures 2 & 8; S₂ closed
C_RL = 15pF; Figures 2 & 8; S₁ closed
C_RL = 15pF; Figures 2 & 8; S₂ closed
600 ns
100 ns
100 ns
1000 ns
1000 ns
+5.25 Volts
RE = 5V, DE = 0V
C_L = 100pF; See Figures 4 & 6; S₂ closed
C_L = 100pF; See Figures 4 & 6; S₁ closed
C_L = 15pF; See Figures 2 & 8; S₂ closed
C_L = 15pF; See Figures 2 & 8; S₁ closed
µA
µA
10 µA
RE, DI = 0V or V_CC; DE = V_CC
RE = 0V, DI = 0V or 5V; DE = 0V
DE = 0V, RE=V_CC
+70 °C
+85 °C
+125 °C
+150 °C
Rev. 5/16/03
SP481E Low Power Half-Duplex RS485 Transceivers
© Copyright 2003 Sipex Corporation
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