SP490_05 Datasheet, PDF (3/12 Pages) Sipex Corporation – Full Duplex RS-485 Transceivers

T_MIN to T_MAX and V_CC = 5V ± 5% unless otherwise noted.
PARAMETERS
MIN.
SP490 RECEIVER
AC Characteristics
Maximum Data Rate
5
Receiver Input to Output
Receiver Input to Output
Diff. Receiver Skew It_PLH-t_PHLI
TYP.
90
90
13
POWER REQUIREMENTS
Supply Voltage
Supply Current
+4.75
900
ENVIRONMENTAL AND
MECHANICAL
Operating Temperature
Commercial (_C_)
0
Industrial (_E_)
-40
Storage Temperature
-65
Package
Plastic DIP (_S_)
NSOIC (_N)
ELECTRICAL CHARACTERISTICS
MAX. UNITS CONDITIONS
Mbps
150 ns
150 ns
ns
t_PLH; R_DIFF = 54Ω,
C_L1 = C_L2 = 100pF; Figures 3 & 8
tC_PLH1L;=RC_DLIF2F==10504pΩ_{F,; Figures 3 & 8}
R_DIFF = 54Ω; C_L1 = C_L2 = 100pF;
Figures 3 & 8
+5.25 Volts
µA
+70 °C
+85 °C
+150 °C
A
R
V_OD
B
R ^VOC
Figure 1. Driver DC Test Load Circuit
3V
DE
DI
C_L1
A
R_DIFF
B
C_L2
A
RO
B
15pF
Receiver
Output
Test Point
1K
S₁
V_CC
C_RL
1K
S₂
Figure 2. Receiver Timing Test Load Circuit
Output
500
Under
Test _CL
S₁
V_CC
S₂
Figure 3. Driver/Receiver Timing Test Circuit
Figure 4. Driver Timing Test Load #2 Circuit
Date: 02/24/05
SP490/491 Full Duplex RS-485 Transceivers
3
© Copyright 2005 Sipex Corporation