Datasheet Linear Technology LTC1487

Manufacturer	Linear Technology
Series	LTC1487

Ultra-Low Power RS485 with Low EMI, Shutdown and High Input Impedance

Datasheets

PDF, 184 Kb, Revision: S, File uploaded: Nov 12, 2017

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Prices

Packaging

	LTC1487CN8#PBF	LTC1487CS8#PBF	LTC1487CS8#TRPBF
N	1	2	3
Package	N-8 Package Outline Drawing	SO-8 Package Outline Drawing	SO-8 Package Outline Drawing
Package Code	N	S8	S8
Package Index	05-08-1510 (N8)	05-08-1610 (S8)	05-08-1610 (S8)
Pin Count	8	8	8

Parametrics

Parameters / Models	LTC1487CN8#PBF	LTC1487CS8#PBF	LTC1487CS8#TRPBF
Configuration	Half-Duplex	Half-Duplex	Half-Duplex
Drivers	1	1	1
ESD, kV	10	10	10
Export Control	no	no	no
Failsafe	Open	Open	Open
Fault Protection	+/-14V	+/-14V	+/-14V
Isupply, mA	.12	.12	.12
Max Data Rate, Mbps	0.25	0.25	0.25
Operating Temperature Range, °C	0 to 70	0 to 70	0 to 70
Protocols Supported	TIA/EIA-485, -422	TIA/EIA-485, -422	TIA/EIA-485, -422
Receivers	1	1	1
Shutdown	yes	yes	yes
Supply Voltage Range	5	5	5

Eco Plan

	LTC1487CN8#PBF	LTC1487CS8#PBF	LTC1487CS8#TRPBF
RoHS	Compliant	Compliant	Compliant

Design Notes

Download
RS485 Transceivers Reduce Power and EMI &mdash DN102
PDF, 80 Kb, File published: Apr 1, 1995
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RS485 Transceivers Reduce Power and EMI вЂ“ Design Note 102
Dave Dwelley, Teo Yang Long, Yau Khai Cheong and Bob Reay
Recent innovations in process and circuit design have
enabled the release of three new RS485 transceivers:
the LTC В®1481, LTC1483 and LTC1487. These devices
share an improved receiver circuit which features 80ОјA
quiescent current operation (driver disabled) with no
loss in AC performance relative to standard RS485
devices, and a new 1ОјA shutdown mode (Figure 1). All
three new devices are pin compatible with the industry
standard LTC485 pinout, and feature Linear TechnologyвЂ™s exclusive В±10kV ESD protection (Human Body
Model) at the line I/O pins, eliminating the need for
external ESD protection in most cases. LTC1483
The LTC1483 is a reduced EMI version of the LTC1481
intended for use in systems where electromagnetic
interference concerns take precedence over high data
rates. The LTC1483 driver slew rate is deliberately limited
to reduce the high frequency electromagnetic emissions
(Figures 2a and 2b) while improving signal п¬Ѓdelity by
reducing reп¬‚ections due to misterminated cables. The
maximum operating frequency of the LTC1483 driver is
limited to 250kbaud. All other performance parameters
are unchanged from the LTC1481, including the low …

Model Line

Series: LTC1487 (3)

LTC1487CN8#PBF LTC1487CS8#PBF LTC1487CS8#TRPBF

Manufacturer's Classification

Interface > RS485/RS422 Transceivers

EMS supplier

Slices

Microcontrollers