SP1481E Datasheet, PDF (3/11 Pages) Sipex Corporation – ±15kV Enhanced Low Power Half-Duplex RS-485 Transceivers

T_MIN to T_MAX and V_CC = 5V ± 5% unless otherwise noted.
PARAMETERS
MIN.
SP1481E RECEIVER
DC Characteristics
Differential Input Threshold -0.2
Differential Input Threshold -0.4
(SP1485EMN 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
SP1481E RECEIVER
AC Characteristics
Maximum Data Rate
20
Receiver Input to Output
15
TYP.
20
15
40
15
Diff. Receiver Skew It_PLH-t_PHLI
5
Receiver Enable to
Output Low
45
Receiver Enable to
Output High
45
Receiver Disable from Low
45
Receiver Disable from High
45
SPECIFICATIONS (continued)
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 RE = 0V, DE = 0V
50 ns
ns
10 ns
t_PLH; R_DIFF = 54Ω,
C_L1 = C_L2 = 100pF; Figures 3 & 7
t_PHL; R_DIFF = 54Ω, C_LI = C_L2 = 100pF
R_DIFF = 54Ω; C_L1 = C_L2 = 100pF;
Figures 3 & 7
70 ns
70 ns
70 ns
70 ns
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
SP1481E
Shutdown Timing
Time to Shutdown
50
200
600 ns
RE = 5V, DE = 0V
Driver Enable from Shutdown
to Output High
Driver Enable from Shutdown
40
100 ns
C_L = 100pF; See Figures 4 & 6; S₂ closed
to Output Low
Receiver Enable from
40
100 ns
C_L = 100pF; See Figures 4 & 6; S₁ closed
Shutdown to Output High
Receiver Enable from
300
1000 ns
C_L = 15pF; See Figures 2 & 8; S₂ closed
Shutdown to Output Low
POWER REQUIREMENTS
300
1000 ns
C_L = 15pF; See Figures 2 & 8; S₁ closed
Supply Voltage
+4.75
+5.25 Volts
Supply Current
SP1481E
No Load
SHUTDOWN
900
µA
600
µA
10 µA
RE, DI = 0V or V_CC; DE = V_CC
RE = 0V, DI = 0V or 5V; DE = 0V
RE = 5V, DE = 0V
ENVIRONMENTAL
AND MECHANICAL
Operating Temperature
Commercial (_C_)
0
Industrial (_E_)
-40
(_M_)
-40
Storage Temperature
-65
Package
+70 °C
+85 °C
+125 °C
+150 °C
Plastic DIP (_P)
NSOIC (_N)
Rev:B Date: 02/26/04
SP1481E Low Power Half-Duplex RS485 Transceivers
3
© Copyright 2004 Sipex Corporation