ADM483ARZ Analog Devices Inc, ADM483ARZ Datasheet

IC TXRX RS485/RS422 LP 8SOIC

ADM483ARZ

Manufacturer Part Number
ADM483ARZ
Description
IC TXRX RS485/RS422 LP 8SOIC
Manufacturer
Analog Devices Inc
Type
Transceiverr
Datasheet

Specifications of ADM483ARZ

Package / Case
8-SOIC (3.9mm Width)
Number Of Drivers/receivers
1/1
Protocol
RS422, RS485
Voltage - Supply
4.75 V ~ 5.25 V
Mounting Type
Surface Mount
Supply Voltage Range
4.75V To 5.25V
Digital Ic Case Style
SOIC
No. Of Pins
8
Operating Temperature Range
-40°C To +85°C
Svhc
No SVHC (18-Jun-2010)
Base Number
483
Package
8SOIC N
Data Transmission Topology
Multipoint
Interface Standards
EIA-422|EIA-485|RS-422|RS-485
Data Rate
0.25(Min) Mbps
Function
Line Transceiver
Number Of Transmitters
1
Transmitter Signal Type
Differential
Transmitter Communication Type
RS-485
Driving Mode
3-State
Typical Single Supply Voltage
5 V
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ADM483ARZ
Manufacturer:
AD
Quantity:
12 000
Part Number:
ADM483ARZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
FEATURES
EIA RS-485/RS-422-compliant
Data rates up to 250 kbps
Slew-rate limited for low EMI
100 nA supply current in shutdown mode
Low power consumption (120 µA)
Up to 32 transceivers on one bus
Outputs high-z when disabled or powered off
–7 V to +12 V bus common-mode range
Thermal shutdown and short-circuit protection
Pin-compatible with MAX483
Specified over –40°C to +85°C temperature range
Available in 8-lead SOIC package
APPLICATIONS
Low power RS-485 applications
EMI sensitive systems
DTE-DCE interfaces
Industrial control
Packet switching
Local area networks
Level translators
GENERAL DESCRIPTION
The ADM483 is a low power differential line transceiver suitable
for half-duplex data communication on multipoint bus trans-
mission lines. It is designed for balanced data transmission, and
complies with EIA Standards RS-485 and RS-422.The part
contains a differential line driver and a differential line receiver.
Both share the same differential pins, with either the driver or
the receiver being enabled at any given time.
The device has an input impedance of 12 kΩ, allowing up to
32 transceivers on one bus. Since only one driver should be
enabled at any time, the output of a disabled or powered-down
driver is three-stated to avoid overloading the bus. This high
impedance driver output is maintained over the entire
common-mode voltage range from –7 V to +12 V.
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
5 V Low Power, Slew-Rate Limited
The receiver contains a fail-safe feature that results in a logic
high output state if the inputs are unconnected (floating).
The driver outputs are slew-rate limited to reduce EMI and data
errors caused by reflections from improperly terminated buses.
Excessive power dissipation caused by bus contention or by
output shorting is prevented by a thermal shutdown circuit.
The part is fully specified over the industrial temperature range,
and is available in an 8-lead SOIC package.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.326.8703
RS-485/RS-422 Transceiver
FUNCTIONAL BLOCK DIAGRAM
RO
RE
DE
DI
© 2004 Analog Devices, Inc. All rights reserved.
ADM483
D
Figure 1.
R
GND
V
CC
A
B
www.analog.com
ADM483

Related parts for ADM483ARZ

ADM483ARZ Summary of contents

Page 1

FEATURES EIA RS-485/RS-422-compliant Data rates up to 250 kbps Slew-rate limited for low EMI 100 nA supply current in shutdown mode Low power consumption (120 µ transceivers on one bus Outputs high-z when disabled or powered off ...

Page 2

ADM483 TABLE OF CONTENTS Specifications..................................................................................... 3 Timing Specifications....................................................................... 4 Absolute Maximum Ratings............................................................ 5 ESD Caution.................................................................................. 5 Pin Configuration and Function Descriptions............................. 6 Test Circuits....................................................................................... 7 Switching Characteristics ................................................................ 8 Typical Performance Characteristics ............................................. 9 REVISION HISTORY 10/04—Revision 0: Initial Version ...

Page 3

SPECIFICATIONS ± 5 unless otherwise noted MIN MAX Table 1. Parameter DRIVER Differential Output Voltage ∆ for Complementary Output States OD Common-Mode Output Voltage, ...

Page 4

ADM483 TIMING SPECIFICATIONS ± 5 unless otherwise noted MIN MAX Table 2. Parameter DRIVER Maximum Data Rate Propagation Delay PLH PHL Skew t SKEW Rise/Fall ...

Page 5

ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 3. Parameter V to GND CC Digital I/O Voltage (DE, RE, DI, ROUT) Driver Output/Receiver Input Voltage Operating Temperature Range Storage Temperature Range θ Thermal Impedance (SOIC) JA Lead ...

Page 6

ADM483 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 4. Pin Function Descriptions Pin No. Mnemonic Description 1 RO Receiver Output. When enabled > 200 mV, then RO = high < 200 mV, then ...

Page 7

TEST CIRCUITS V OD Figure 3. Driver Voltage Measurement 375Ω V OD3 60Ω 375Ω Figure 4. Driver Voltage Measurement over Common-Mode Voltage Range A R LDIFF B Figure 5. Driver Propagation Delay TST C L1 ...

Page 8

ADM483 SWITCHING CHARACTERISTICS 3V 1.5V 1. PLH B 1/2VO SKEW PLH – PHL 5V 90% POINT 10% POINT Figure 9. Driver Propagation Delay, Rise/Fall Timing ...

Page 9

TYPICAL PERFORMANCE CHARACTERISTICS 400 350 300 250 200 150 100 50 0 –50 – TEMPERATURE ( °C) Figure 13. Supply Current vs. Temperature 0.2 0.4 ...

Page 10

ADM483 120 100 0.5 1.0 1.5 2.0 2.5 3.0 OUTPUT VOLTAGE (V) Figure 19. Output Current vs. Driver Output Low Voltage –10 –30 –50 –70 –90 –110 0 0.5 1.0 1.5 2.0 2.5 3.0 ...

Page 11

APPLICATIONS DIFFERENTIAL DATA TRANSMISSION Differential data transmission is used to reliably transmit data at high rates over long distances and through noisy environments. Differential transmission nullifies the effects of ground shifts and noise signals that appear as common- mode voltages ...

Page 12

ADM483 THERMAL SHUTDOWN The ADM483 contains thermal shutdown circuitry that protects the part from excessive power dissipation during fault conditions. Shorting the driver outputs to a low impedance source can result in high driver currents. The thermal sensing circuitry detects ...

Page 13

OUTLINE DIMENSIONS ORDERING GUIDE Model Temperature Range ADM483AR –40°C to +85°C ADM483AR-REEL –40°C to +85°C ADM483AR-REEL7 –40°C to +85°C ADM483JR 0°C to 70°C ADM483JR-REEL 0°C to 70°C ADM483JR-REEL7 0°C to 70°C 5.00 (0.1968) 4.80 (0.1890 6.20 (0.2440) 4.00 ...

Page 14

ADM483 NOTES Rev Page ...

Page 15

NOTES Rev Page ADM483 ...

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ADM483 NOTES © 2004 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D05079-0-10/04(0) Rev Page ...

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