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參數資料
| 型號： | ADM3082JR |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | High-Speed (10Mbps), Fail-Safe, RS-485/RS-422 Transceivers with Slew-Rate-Limiting and 5kV ESD Protection |
| 中文描述： | LINE TRANSCEIVER, PDSO8 |
| 封裝： | SO-8 |
| 文件頁數： | 1/14頁 |
| 文件大小： | 316K |
| 代理商： | ADM3082JR |
PRELIMINARY TECHNICAL DATA
High-Speed (10Mbps), Fail-Safe, RS-485/RS-422
Transceivers with Slew-Rate-Limiting
a
and ±15kV ESD Protection
ADM3082/ADM3085/ADM3088
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
World Wide Web Site: http://www.analog.com
Fax: 617/326-8703
Analog Devices, Inc., 2002
GENERAL DESCRIPTION
The ADM3082/ADM3085/ADM3088 are high-speed
RS-485/RS-422 transceivers consisting of one driver and one
receiver per package. The devices feature fail-safe operation,
ensuring a logic-high receiver output when the receiver in-
puts are open-circuit or short-circuit. This guarantees that
the receiver output will be high if all the transmitters on a
terminated bus are disabled (high-impedance).
The ADM3082 has a slew-rate limited driver to minimize
electromagnetic interference (EMI) and reduce reflections
caused by incorrectly terminated cables. This allows error-
free transmission at data rates up to 115kbps.
The ADM3085 offers a higher slew rate allowing data rates
up to 500kbps, while the ADM3088 has a driver whose slew
rate is not limited, allowing data rates up to 10Mbps.
All devices in the family feature ±15kV electrostatic dis-
charge (ESD) protection and high receiver input imped-
ance (1/8 unit load), allowing up to 256 transceivers on
the bus. The devices have low current drain of 375μA un-
loaded, or fully loaded with the drivers disabled, and fea-
ture an ultra-low power (1nA) shutdown mode.
FEATURES
Enhanced Slew Rate Limiting for Error-Free Data
Transmission
Fail-Safe Receiver Operation while Maintaining
EIA/TIA-485 compatibility
Low-Current (1nA) Shutdown Mode
High Input Impedance — Up to 256 Transceivers on Bus
±15kV ESD Protection (Human Body Model) on
RS-485 I/O pins
Pin-Compatible with Industry Standard 75176
APPLICATIONS
Enhanced Replacement for Industry-Standard Parts
EMI-Sensitive Systems
Level Translation
LANs for Industrial Control Applications
FUNCTIONAL BLOCK DIAGRAM
1
2
3
4
8
7
6
5
D
R
RO
RE
DE
DI
V
CC
B
A
GND
ADM3082/ADM3085/ADM3088
REV. PrA 02/02
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相關代理商/技術參數 |
參數描述 |
|---|---|
| ADM3085 | 制造商:AD 制造商全稱:Analog Devices 功能描述:High-Speed (10Mbps), Fail-Safe, RS-485/RS-422 Transceivers with Slew-Rate-Limiting and 5kV ESD Protection |
| ADM3085AN | 制造商:AD 制造商全稱:Analog Devices 功能描述:High-Speed (10Mbps), Fail-Safe, RS-485/RS-422 Transceivers with Slew-Rate-Limiting and 5kV ESD Protection |
| ADM3085AR | 制造商:AD 制造商全稱:Analog Devices 功能描述:High-Speed (10Mbps), Fail-Safe, RS-485/RS-422 Transceivers with Slew-Rate-Limiting and 5kV ESD Protection |
| ADM3085JN | 制造商:AD 制造商全稱:Analog Devices 功能描述:High-Speed (10Mbps), Fail-Safe, RS-485/RS-422 Transceivers with Slew-Rate-Limiting and 5kV ESD Protection |
| ADM3085JR | 制造商:AD 制造商全稱:Analog Devices 功能描述:High-Speed (10Mbps), Fail-Safe, RS-485/RS-422 Transceivers with Slew-Rate-Limiting and 5kV ESD Protection |
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