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參數(shù)資料
| 型號： | ADM489ANZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 1/16頁 |
| 文件大小： | 0K |
| 描述： | IC TXRX RS485 LO SLEW/EN 14DIP |
| 標(biāo)準(zhǔn)包裝： | 25 |
| 類型： | 收發(fā)器 |
| 驅(qū)動器/接收器數(shù)： | 1/1 |
| 規(guī)程： | RS422，RS485 |
| 電源電壓： | 4.5 V ~ 5.5 V |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 14-DIP（0.300"，7.62mm） |
| 供應(yīng)商設(shè)備封裝： | 14-PDIP |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 790 (CN2011-ZH PDF) |
Full-Duplex, Low Power,
Slew Rate Limited, EIA RS-485 Transceivers
ADM488/ADM489
Rev. D
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
2006 Analog Devices, Inc. All rights reserved.
FEATURES
Meets EIA RS-485 and RS-422 standards
250 kbps data rate
Single 5 V ± 10% supply
7 V to +12 V bus common-mode range
12 kΩ input impedance
2 kV EFT protection meets IEC1000-4-4
High EM immunity meets IEC1000-4-3
Reduced slew rate for low EM interference
Short-circuit protection
Excellent noise immunity
30 μA supply current
APPLICATIONS
Low power RS-485 and RS-422 systems
DTE-DCE interface
Packet switching
Local area networks
Data concentration
Data multiplexers
Integrated services digital network (ISDN)
GENERAL DESCRIPTION
The ADM488 and ADM489 are low power, differential line
transceivers suitable for communication on multipoint bus
transmission lines. They are intended for balanced data
transmission and comply with both Electronics Industries
Association (EIA) RS-485 and RS-422 standards. Both products
contain a single differential line driver and a single differential
line receiver, making them suitable for full-duplex data transfer.
The ADM489 contains an additional receiver and driver enable
control.
The input impedance is 12 kΩ, allowing 32 transceivers to be
connected on the bus.
The ADM488/ADM489 operate from a single 5 V ± 10% power
supply. Excessive power dissipation caused by bus contention or
output shorting is prevented by a thermal shutdown circuit.
This feature forces the driver output into a high impedance state
if, during fault conditions, a significant temperature increase is
detected in the internal driver circuitry.
FUNCTIONAL BLOCK DIAGRAMS
ADM488
R
D
RO
DI
A
B
Z
Y
00
07
9-
00
1
Figure 1.
ADM489
R
D
RO
DI
A
B
Z
Y
DE
RE
00
07
9-
0
02
Figure 2.
The receiver contains a fail-safe feature that results in a logic
high output state if the inputs are unconnected (floating).
The ADM488/ADM489 are fabricated on BiCMOS, an
advanced mixed technology process combining low power
CMOS with fast switching bipolar technology.
The ADM488/ADM489 are fully specified over the industrial
temperature range and are available in PDIP, SOIC, and TSSOP
packages.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADM489AR | 制造商:Analog Devices 功能描述:Single Transmitter/Receiver RS-422/RS-485 14-Pin SOIC N 制造商:Analog Devices 功能描述:IC TRANSCEIVER RS485 |
| ADM489AR-REEL | 制造商:Analog Devices 功能描述:Single Transmitter/Receiver RS-422/RS-485 14-Pin SOIC N T/R 制造商:Rochester Electronics LLC 功能描述:FULL DUPLEX,RS-485 TRANSCEIVER I.C. - Tape and Reel |
| ADM489AR-REEL7 | 制造商:Analog Devices 功能描述:Single Transmitter/Receiver RS-422/RS-485 14-Pin SOIC N T/R |
| ADM489ARU | 制造商:Rochester Electronics LLC 功能描述:FULL DUPLEX,RS-485 TRANSCEIVER I.C. - Bulk |
| ADM489ARU-REEL | 制造商:Analog Devices 功能描述:Single Transmitter/Receiver RS-422/RS-485 16-Pin TSSOP T/R 制造商:Analog Devices 功能描述:LINE TRNSCVR 1TR 1TX 1RX 16TSSOP - Tape and Reel |
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