SP490E Datasheet, PDF (6/12 Pages) Sipex Corporation – Enhanced Full Duplex RS-485 Transceivers

SPECIFICATIONS (continued)
T
MIN
to
T
MAX
and
V
CC
=
5V
±
5%
unless
otherwise
noted.
PARAMETERS
MIN.
SP491E RECEIVER
DC Characteristics
Differential Input Threshold -0.2
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
SP491E RECEIVER
AC Characteristics
Maximum Data Rate
10
Receiver Input to Output
20
Receiver Input to Output
20
Diff. Receiver Skew It_PLH-t_PHLI
Receiver Enable to Output LOW
Receiver Enable to Output HIGH
Receiver Disable from LOW
Receiver Disable from HIGH
POWER REQUIREMENTS
Supply Voltage
Supply Current
+4.75
SP491E ENVIRONMENTAL
AND MECHANICAL
Operating Temperature
Commercial (_C_)
0
Industrial (_E_)
-40
Storage Temperature
-65
Package
Plastic DIP (_P)
NSOIC (_N)
TYP.
70
15
45
45
13
45
45
45
45
900
MAX. UNITS CONDITIONS
+0.2 Volts
mV
Volts
0.4 Volts
±1 µA
kΩ
±1.0 mA
-0.8 mA
85 mA
-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; REB = 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
+5.25 Volts
µA
REB = 0V, DE = 5V
t_PLH; R_DIFF = 54Ω,
C_L1 = C_L2 = 100pF; Figures 3 & 7
tC_PLH1L;=RC_DLIF2F==10504pΩ_{F,; Figures 3 & 7}
R_DIFF = 54Ω; C_L1 = C_L2 = 100pF;
Figures 3 & 7
C_RL = 15pF; Figures 2 and 8; S₁ closed
C_RL = 15pF; Figures 2 and 8; S₂ closed
C_RL = 15pF; Figures 2 and 8; S₁ closed
C_RL = 15pF; Figures 2 and 8; S₂ closed
REB, D = 0V or V_CC; DE = V_CC
+70 °C
+85 °C
+150 °C
+3V
RE
0V
5V
R
V_IL
V_IH
R
0V
1.5V _{f = 1MHz; tR < 10ns; tF < 10ns}
t_ZL
1.5V _{Output normally LOW}
1.5V ^{Output normally HIGH}
t_ZH
Figure 8. Receiver Enable and Disable Times
1.5V
t_LZ
0.5V
0.5V
t_HZ
SP490EDS/14
SP490E Enhanced Full Duplex RS-485 Transceivers
6
© Copyright 2000 Sipex Corporation