LTC2852IMS#PBF Linear Technology, LTC2852IMS#PBF Datasheet

IC TXRX RS485/RS422 10MSOP

LTC2852IMS#PBF

Manufacturer Part Number
LTC2852IMS#PBF
Description
IC TXRX RS485/RS422 10MSOP
Manufacturer
Linear Technology
Type
Transceiverr
Datasheet

Specifications of LTC2852IMS#PBF

Number Of Drivers/receivers
1/1
Protocol
RS422, RS485
Voltage - Supply
3 V ~ 3.6 V
Mounting Type
Surface Mount
Package / Case
10-MSOP, Micro10™, 10-uMAX, 10-uSOP
Data Rate
20Mbps
Number Of Receivers
1
Number Of Transmitters
1
Number Of Transceivers
1
Data Transmission Topology
Multidrop/Multipoint
Receiver Signal Type
Differential
Transmitter Signal Type
Differential
Single Supply Voltage (typ)
3.3V
Single Supply Voltage (min)
3V
Single Supply Voltage (max)
3.6V
Dual Supply Voltage (typ)
Not RequiredV
Dual Supply Voltage (min)
Not RequiredV
Dual Supply Voltage (max)
Not RequiredV
Supply Current
1mA
Power Supply Requirement
Single
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
10
Package Type
MSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LTC2852IMS#PBFLTC2852IMS
Manufacturer:
LT
Quantity:
10 000
Company:
Part Number:
LTC2852IMS#PBFLTC2852IMS
Manufacturer:
LTNEAR
Quantity:
20 000
Company:
Part Number:
LTC2852IMS#PBF
Manufacturer:
LINEAR
Quantity:
110
Company:
Part Number:
LTC2852IMS#PBF
Manufacturer:
INTERSIL
Quantity:
20
Company:
Part Number:
LTC2852IMS#PBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
FeaTures
applicaTions
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
Typical applicaTion
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
Low Power RS485/RS422 Transceiver
Level Translator
Backplane Transceiver
RO1
RO2
RE1
DE1
RE2
DE2
DI1
DI2
LTC2850
LTC2850
D
D
R
R
V
GND1
V
GND2
285012 TA01a
CC1
CC2
R
R
T
T
DescripTion
The LTC
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.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
LTC2850/LTC2851/LTC2852
3.3V 20Mbps RS485/RS422
PART NUMBER
LTC2850
LTC2851
LTC2852
®
2V/DIV
2850, LTC2851 and LTC2852 are low power,
LTC2850 at 20Mbps Into 54Ω
DI
A-B
DUPLEX
Half
Full
Full
20ns/DIV
Transceivers
SO-14, MSOP-10, DFN-10
A
B
SO-8, MSOP-8, DFN-8
SO-8, MSOP-8, DFN-8
285012 TA01b
PACKAGE
285012fd


Related parts for LTC2852IMS#PBF

LTC2852IMS#PBF Summary of contents

Page 1

... PART NUMBER LTC2850 LTC2851 LTC2852 L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners 2V/DIV R ...

Page 2

LTC2850/LTC2851/LTC2852 absoluTe MaxiMuM raTings Supply Voltage (V ) ................................... –0. Logic Input Voltages (RE, DE, DI) ................ –0. Interface I/ ....................................... (V Receiver Output Voltage (RO) .......–0. pin conFiguraTion ...

Page 3

LTC2850 C DD #TR PBF Consult LTC Marketing for information on non-standard lead based finish parts. For more information on lead free part marking, go to: For more information on tape and reel specifications, go to: proDucT selecTion ...

Page 4

LTC2850/LTC2851/LTC2852 elecTrical characTerisTics temperature range, otherwise specifications are at T SYMBOL PARAMETER Driver |V | Differential Driver Output Voltage OD Difference in Magnitude of Driver Differential Δ| Output Voltage for Complementary Output States V Driver Common Mode Output ...

Page 5

T SYMBOL PARAMETER Supplies I Supply Current in Shutdown Mode CCS I Supply Current in Receive Mode CCR I Supply Current in Transmit Mode CCT I Supply Current with Both Driver and ...

Page 6

LTC2850/LTC2851/LTC2852 TesT circuiTs Y + GND DI OR DRIVER – Figure 1. Driver DC Characteristics Y DI DRIVER GND – 285012 F01 Figure 2. Driver Output ...

Page 7

TesT circuiTs DRIVER GND DE Z Figure 5. Driver Enable and Disable Timing Measurements A ± RECEIVER CM B ± RECEIVER ...

Page 8

LTC2850/LTC2851/LTC2852 Typical perForMance characTerisTics Receiver Skew vs Temperature 1. 15pF –1 –40 – 100 TEMPERATURE (°C) 285012 G01 Driver Output Short‑Circuit Current vs Temperature 150 140 ...

Page 9

FuncTions RO: Receiver Output. If the receiver output is enabled (RE low) and A > 200mV, then RO will be high < 200mV, then RO will be low. If the receiver inputs are ...

Page 10

LTC2850/LTC2851/LTC2852 block DiagraM LTC2850 V CC RECEIVER RO RE SLEEP/SHUTDOWN LOGIC AND DELAY DE DI DRIVER GND  (15kV) B (15kV) DI 285012 BDa LTC2852 RECEIVER RE SLEEP/SHUTDOWN LOGIC AND DELAY DE DI DRIVER 285012 ...

Page 11

Driver The driver provides full RS485/RS422 compatibility. When enabled high, Y-Z is positive for the full-duplex devices (LTC2851, LTC2852) and A-B is positive for the half-duplex device (LTC2850). When the driver is disabled, both outputs ...

Page 12

LTC2850/LTC2851/LTC2852 applicaTions inForMaTion DIFF 1000pF 100pF 0 DATA RATE (Mbps) Figure 13. Supply Current vs Data Rate High Speed Considerations A ground ...

Page 13

Typical applicaTions Multinode Network with End Termination Using the LTC2850 and LTC2854 3.3V D LTC2854 LTC2850/LTC2851/LTC2852 Failsafe “0” Application (Idle State = Logic “0” 100k ...

Page 14

LTC2850/LTC2851/LTC2852 package DescripTion 3.5 0.05 1.65 0.05 2.10 0.05 (2 SIDES) 0.25 0.05 RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS APPLY SOLDER MASK TO AREAS THAT ARE NOT SOLDERED PIN 1 TOP MARK (NOTE 6) 3.55 0.05 1.65 0.05 2.15 0.05 ...

Page 15

DescripTion 0.889 0.127 (.035 .005) 5.23 3.20 – 3.45 (.206) (.126 – .136) MIN 0.42 0.038 0.65 (.0165 .0015) (.0256) TYP BSC RECOMMENDED SOLDER PAD LAYOUT NOTE: 1. DIMENSIONS IN MILLIMETER/(INCH) 2. DRAWING NOT TO SCALE 3. DIMENSION DOES ...

Page 16

LTC2850/LTC2851/LTC2852 package DescripTion .050 BSC .245 MIN .030 ±.005 TYP RECOMMENDED SOLDER PAD LAYOUT .010 – .020 (0.254 – 0.508) .008 – .010 (0.203 – 0.254) NOTE: 1. DIMENSIONS IN 2. DRAWING NOT TO SCALE 3. THESE DIMENSIONS DO NOT ...

Page 17

... Added military grade parts. Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights. LTC2850/LTC2851/LTC2852 ...

Page 18

... Resistor, 25kV ESD (LTC2854), 15kV ESD (LTC2855) 15kV ESD Integrated, Switchable, 120Ω Termination Resistor, 15kV ESD www.linear.com ● D SLAVE 120 D R LTC2855 285012 TA04 = 300µA (Typ) = 300µA Isolation in Surface Mount Package RMS LT 0510 REV D • PRINTED IN USA  LINEAR TECHNOLOGY CORPORATION 2007 TE = 3.3V 285012fd ...

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