SP491 SIPEX [Sipex Corporation], SP491 Datasheet - Page 6

• Manufacturer Part Number: SP491
• Description: Full Duplex RS-485 Transceivers
• Manufacturer: SIPEX [Sipex Corporation]

T
Figure 9. Receiver Enable and Disable Times
Date: 05/10/04
MIN
to T
PARAMETERS
SP491 RECEIVER
DC Characteristics
Differential Input Threshold
Input Hysteresis
Output Voltage High
Output Voltage Low
Three State (high impedance)
Output Current
Input Resistance
Input Current (A, B); V
Input Current (A, B); V
Short-Circuit Current
SP491 RECEIVER
DC Characteristics
Maximum Data Rate
Receiver Input to Output
Receiver Input to Output
Diff. Receiver Skew It
Receiver Enable to Output Low
Receiver Enable to Output High
Receiver Disable from Low
Receiver Disable from High
POWER REQUIREMENTS
Supply Voltage
Supply Current
SP491 ENVIRONMENTAL
AND MECHANICAL
Operating Temperature
Storage Temperature
Package
RE
Commercial (_C_)
Industrial (_E_)
Plastic DIP (_S_)
NSOIC (_N)
R
R
MAX
and V
+3V
V
V
0V
5V
0V
IH
IL
CC
= 5V ± 5% unless otherwise noted.
PLH
IN
IN
= 12V
= -7V
-t
PHL
I
1.5V
+4.75
MIN.
-0.2
-40
-65
3.5
12
60
60
1.5V
1.5V
7
5
0
t
t
ZH
f = 1MHz; t
ZL
SP490/491 Full Duplex RS-485 Transceivers
TYP.
600
20
20
20
20
70
15
90
90
13
Output normally HIGH
Output normally LOW
MAX.
+5.25
+150
+0.2
±1.0
-0.8
150
150
+70
+85
6
R
0.4
±1
85
50
50
50
50
< 10ns; t
UNITS
Volts
mV
Volts
Volts
µA
kΩ
mA
mA
mA
Mbps
ns
ns
ns
ns
ns
ns
ns
Volts
µA
°C
°C
°C
ELECTRICAL CHARACTERISTICS
F
< 10ns
CONDITIONS
-7V ≤ V
V
I
I
0.4V ≤ V
-7V ≤ V
DE = 0V, V
DE = 0V, V
0V ≤ V
REB = 0V
t
C
t
C
R
Figures 3 & 8
C
C
C
C
REB, D = 0V or V
O
O
PLH
PHL
CM
L1
L1
DIFF
RL
RL
RL
RL
= -4mA, V
= +4mA, V
; R
; R
= C
= C
= 15pF; Figures 2 and 9; S
= 15pF; Figures 2 and 9; S
= 15pF; Figures 2 and 9; S
= 15pF; Figures 2 and 9; S
= 0V
= 54Ω; C
DIFF
DIFF
O
CM
CM
L2
L2
≤ V
O
= 100pF;
=
≤ 12V
≤ 2.4V; REB = 5V
≤ 12V
= 54Ω,
= 54Ω,
CC
CC
100pF;
CC
© Copyright 2004 Sipex Corporation
ID
1.5V
ID
= 0V or 5.25V, V
= 0V or 5.25V, V
L1
= +200mV
0.5V
0.5V
= -200mV
= C
CC
Figures 3 & 8
t
Figures 3 & 8
t
HZ
; DE = V
LZ
L2
= 100pF;
CC
IN
IN
1
2
1
2
closed
closed
closed
closed
= 12V
= -7V