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LTC2850IDD#PBF

Description
Single Transmitter/Receiver RS-422/RS-485 Automotive 8-Pin DFN EP Tube
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size245KB,18 Pages
ManufacturerADI
Websitehttps://www.analog.com
Environmental Compliance
Download Datasheet Parametric View All

LTC2850IDD#PBF Overview

Single Transmitter/Receiver RS-422/RS-485 Automotive 8-Pin DFN EP Tube

LTC2850IDD#PBF Parametric

Parameter NameAttribute value
EU restricts the use of certain hazardous substancesCompliant
ECCN (US)EAR99
Part StatusActive
FunctionLine Transceiver
Data Rate20Mbps(Min)
Transmitter Communication TypeRS-485|RS-422
Receiver Communication TypeRS-485|RS-422
Interface StandardsEIA/TIA-485-A|RS-422|RS-485
Data Transmission TopologyMultipoint|Multidrop
Number of Transceivers1
Number of Transmitters1
Number of Receivers1
Transmitter Signal TypeDifferential
Receiver Signal TypeDifferential
Number of Drivers per Line256@RS-485|1@RS-422
Number of Receivers per Line256@RS-485|10@RS-422
Driving Mode3-State
Number of Transmitter Enables1
Number of Receiver Enables1
Minimum Operating Temperature (°C)-40
Maximum Operating Temperature (°C)85
Power Supply TypeSingle
Minimum Single Supply Voltage (V)3
Typical Single Supply Voltage (V)3.3
Maximum Single Supply Voltage (V)3.6
Maximum Supply Current (mA)1
Supplier Temperature GradeIndustrial
IsolationYes
PackagingTube
Pin Count8
Supplier PackageDFN EP
Standard Package NameDFN
MountingSurface Mount
Package Height0.75(Max)
Package Length3
Package Width3
PCB changed8
Lead ShapeNo Lead
LTC2850/LTC2851/LTC2852
3.3V 20Mbps RS485/RS422
Transceivers
FEATURES
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DESCRIPTION
The
LTC
®
2850,
LTC2851 and LTC2852 are low power,
20Mbps RS485/RS422 transceivers operating on 3.3V
supplies. The receiver has a one-eighth unit load supporting
up to 256 nodes per bus (C-, I-grade), and a failsafe feature
that guarantees a high output state under conditions of
floating or shorted inputs.
The driver maintains a high output impedance over the
entire common mode range when disabled or when the
supply is removed. Excessive power dissipation caused by
bus contention or a fault is prevented by current limiting
all outputs and by thermal shutdown.
Enhanced ESD protection allows these parts to withstand
up to ±15kV (human body model) on the transceiver
interface pins without latchup or damage.
PART NUMBER
LTC2850
LTC2851
LTC2852
DUPLEX
Half
Full
Full
PACKAGE
SO-8, MSOP-8, DFN-8
SO-8, MSOP-8, DFN-8
SO-14, MSOP-10, DFN-10
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n
n
n
n
n
n
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3.3V Supply Voltage
20Mbps Maximum Data Rate
No Damage or Latchup Up to ±15kV HBM
High Input Impedance Supports 256 Nodes
(C-, I-Grade)
Operation Up to 125°C (H-Grade)
Guaranteed Failsafe Receiver Operation Over the
Entire Common Mode Range
Current Limited Drivers and Thermal Shutdown
Delayed Micropower Shutdown: 5µA Maximum
(C-, I-Grade)
Power Up/Down Glitch-Free Driver Outputs
Low Operating Current: 370µA Typical in
Receive Mode
Compatible with TIA/EIA-485-A Specifications
Available in 8-Pin and 10-Pin 3mm
×
3mm DFN,
8-Pin and 10-Pin MSOP and 8-Pin and 14-Pin
,
SO Packages
APPLICATIONS
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Low Power RS485/RS422 Transceiver
Level Translator
Backplane Transceiver
L,
LT, LTC, LTM, Linear Technology, the Linear logo and µModule are registered trademarks of
Linear Technology Corporation. All other trademarks are the property of their respective owners.
TYPICAL APPLICATION
LTC2850
RO1
RE1
DE1
DI1
D
GND1
2V/DIV
LTC2850
RO2
RE2
DE2
DI2
D
GND2
285012 TA01a
LTC2850 at 20Mbps Into 54Ω
V
CC1
R
T
DI
A
B
A-B
V
CC2
R
T
R
R
20ns/DIV
285012 TA01b
285012fe
For more information
www.linear.com/LTC2850
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