SP490ECP Sipex Corporation, SP490ECP Datasheet

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SP490ECP

Manufacturer Part Number
SP490ECP
Description
Enhanced full duplex RS-485 transceivers
Manufacturer
Sipex Corporation
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SP490ECP
Manufacturer:
SIPEX
Quantity:
3 942
Part Number:
SP490ECP-L
Quantity:
2 000
DESCRIPTION…
The SP490E is a low power differential line driver/receiver meeting RS-485 and RS-422
standards up to 10Mbps. The SP491E is identical to the SP490E with the addition of driver
and receiver tri-state enable lines. Both products feature 200mV receiver input sensitivity,
over wide common mode range. The SP490E is available in 8-pin plastic DIP and 8-pin NSOIC
packages for operation over the commercial and industrial temperature ranges. The SP491E
is available in 14-pin DIP and 14-pin NSOIC packages for operation over the commercial and
industrial temperature ranges.
SP490EDS/14
+5V Only
Low Power BiCMOS
Driver/Receiver Enable (SP491E)
RS-485 and RS-422 Drivers/Receivers
Pin Compatible with LTC490 and
SN75179 (SP490E)
Pin Compatible with LTC491 and
SN75180 (SP491E)
Improved ESD Specifications:
Enhanced Full Duplex RS-485 Transceivers
15kV Human Body Model
15kV IEC1000-4-2 Air Discharge
8kV IEC1000-4-2 Contact Discharge
GND
Vcc
R
D
4
1
2
3
®
SP490E
D
R
SP490E Enhanced Full Duplex RS-485 Transceivers
6
8
7
5
A
B
Z
Y
1
GND
GND
REB
NC
DE
R
D
SP490E/SP491E
1
2
3
4
5
6
7
SP491E
D
R
© Copyright 2000 Sipex Corporation
14
13
12
11
10
9
8
Vcc
NC
A
B
Z
Y
NC

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SP490ECP Summary of contents

Page 1

... Vcc GND 4 SP490E SP490EDS/14 SP490E/SP491E REB GND 6 GND 7 SP490E Enhanced Full Duplex RS-485 Transceivers 1 14 Vcc SP491E © Copyright 2000 Sipex Corporation ...

Page 2

... Figures 3 and SKEW DPLH DPHL From 10 DIFF 100pF; see Figures 3 and -7V V 12V -4mA +200mV +4mA -200mV O ID -7V V 12V 12V - © Copyright 2000 Sipex Corporation ...

Page 3

... PLH DIFF 100pF; Figures 3 & PHL DIFF = 100pF; Figures 3 & 100pF; DIFF L1 L2 Figures 3 & Test Point 500 © Copyright 2000 Sipex Corporation ...

Page 4

... DPHL 1MHz; t < 10ns; t < 10ns 2.3V Output normally LOW Output normally HIGH 2. 1MHz; t < 10ns; t < 10ns INPUT 1.5V OUTPUT SP490E Enhanced Full Duplex RS-485 Transceivers 4 1. 0.5V 0. 1.5V t PLH © Copyright 2000 Sipex Corporation ...

Page 5

... Figures 3 and 100pF; see Figures and 6; S closed 2 = 100pF; see Figures and 6; S closed 15pF; see Figures and 6; S closed 15pF; see Figures and 6; S closed 2 © Copyright 2000 Sipex Corporation ...

Page 6

... L1 L2 Figures 3 & 15pF; Figures 2 and 8; S closed 15pF; Figures 2 and 8; S closed 15pF; Figures 2 and 8; S closed 15pF; Figures 2 and 8; S closed RL 2 REB 1.5V < 10ns t LZ 0.5V 0. © Copyright 2000 Sipex Corporation ...

Page 7

... The improved ESD tolerance is at least 15kV without damage nor latch-up SW1 SW1 SW1 SP490E Enhanced Full Duplex RS-485 Transceivers 7 (12k minimum). SW2 SW2 SW2 Device Under Test © Copyright 2000 Sipex Corporation ...

Page 8

... This simulates an electrically charged The 30A 15A 0A t=0ns Figure 11. ESD Test Waveform for IEC1000-4-2 SP490E Enhanced Full Duplex RS-485 Transceivers SW2 SW2 SW2 Device Under Test for IEC1000-4-2. f for IEC1000-4-2. or IEC1000-4-2. t=30ns t © Copyright 2000 Sipex Corporation ...

Page 9

... IEC1000-4-2 Air Discharge Direct Contact 15kV 15kV SP490E Enhanced Full Duplex RS-485 Transceivers 9 is initially charged with the are S ) and the source S value and lower R value in the S Level 8kV 4 8kV 4 © Copyright 2000 Sipex Corporation ...

Page 10

... Copyright 2000 Sipex Corporation ...

Page 11

... SP490E Enhanced Full Duplex RS-485 Transceivers 11 SMALL OUTLINE (SOIC) (NARROW) Ø L © Copyright 2000 Sipex Corporation ...

Page 12

... Model SP490ECN. ...................................................... 0˚C to +70˚C ..................................................... 8-Pin NSOIC SP490ECP ........................................................ 0˚C to +70˚C ........................................................... 8-Pin DIP SP490EEN. ..................................................... -40˚C to +85˚C ................................................... 8-Pin NSOIC SP490EEP ...................................................... -40˚C to +85˚C ......................................................... 8-Pin DIP SP491ECN ....................................................... 0˚C to +70˚C ................................................... 14-Pin NSOIC SP491ECP ........................................................ 0˚C to +70˚C ......................................................... 14-Pin DIP SP491EEN. ..................................................... -40˚C to +85˚C ................................................. 14-Pin NSOIC SP491EEP ...................................................... -40˚ ...

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