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參數資料
| 型號： | ADM3078EYRZ-REEL7 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | 3.3 V, 【15 kV ESD-Protected, Half- and Full-Duplex, RS-485/RS-422 Transceivers |
| 中文描述： | LINE TRANSCEIVER, PDSO8 |
| 封裝： | ROHS COMPLIANT, MS-012-AA, SOIC-8 |
| 文件頁數： | 1/20頁 |
| 文件大小： | 429K |
| 代理商： | ADM3078EYRZ-REEL7 |
3.3 V, ±15 kV ESD-Protected, Half- and
Full-Duplex, RS-485/RS-422 Transceivers
ADM3070E/ADM3071E/ADM3072E/ADM3073E/ADM3074E/ADM3075E/ADM3076E/ADM3077E/ADM3078E
FEATURES
Rev. A
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
2006 Analog Devices, Inc. All rights reserved.
www.analog.com
TIA/EIA RS-485/RS-422 compliant
±15 kV ESD protection on RS-485 input/output pins
Data rates
ADM3070E/ADM3071E/ADM3072E: 250 kbps
ADM3073E/ADM3074E/ADM3075E: 500 kbps
ADM3076E/ADM3077E/ADM3078E: 16 Mbps
Half- and full-duplex options
True fail-safe receiver inputs
Up to 256 nodes on the bus
40°C to +125°C temperature option
Hot-swap input structure on DE and RE pins
Reduced slew rates for low EMI
Low power shutdown current (all except
ADM3071E/ADM3074E/ADM3077E)
Outputs high-Z when disabled or powered off
Common-mode input range: 7 V to +12 V
Thermal shutdown and short-circuit protection
8-lead and 14-lead narrow SOIC packages
APPLICATIONS
Power/energy metering
Industrial control
Lighting systems
Telecommunications
Security systems
Instrumentation
GENERAL DESCRIPTION
The ADM3070E to ADM3078E are 3.3 V, low power data
transceivers with ±15 kV ESD protection suitable for full- and
half-duplex communication on multipoint bus transmission
lines. They are designed for balanced data transmission, and they
comply with TIA/EIA standards RS-485 and RS-422.
The devices have an unit load receiver input impedance,
which allows up to 256 transceivers on a bus. Because only one
driver should be enabled at any time, the output of a disabled or
powered-down driver is tristated to avoid overloading the bus.
The receiver inputs have a true fail-safe feature, which
eliminates the need for external bias resistors and ensures a
logic high output level when the inputs are open or shorted.
This guarantees that the receiver outputs are in a known state
before communication begins and when communication ceases.
FUNCTIONAL BLOCK DIAGRAMS
ADM3070E/
ADM3073E/
ADM3076E
RO
RE
DE
DI
V
CC
A
B
Z
Y
GND
Figure 1.
R
D
0
ADM3071E/
ADM3074E/
ADM3077E
RO
DI
V
CC
A
B
Z
Y
GND
R
D
0
.
Figure 2.
ADM3072E/
ADM3075E/
ADM3078E
RO
RE
DE
DI
V
CC
A
B
GND
D
R
0
Figure 3.
(continued on Page 3)
相關PDF資料 |
PDF描述 |
|---|---|
| ADM307EARZ | 3.3 V, 【15 kV ESD-Protected, Half- and Full-Duplex, RS-485/RS-422 Transceivers |
| ADM307EARZ-REEL7 | 3.3 V, 【15 kV ESD-Protected, Half- and Full-Duplex, RS-485/RS-422 Transceivers |
| ADM307EYRZ | 3.3 V, 【15 kV ESD-Protected, Half- and Full-Duplex, RS-485/RS-422 Transceivers |
| ADM307EYRZ-REEL7 | 3.3 V, 【15 kV ESD-Protected, Half- and Full-Duplex, RS-485/RS-422 Transceivers |
| ADM3070EYRZ | 3.3 V, 【15 kV ESD-Protected, Half- and Full-Duplex, RS-485/RS-422 Transceivers |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ADM307EARZ | 制造商:AD 制造商全稱:Analog Devices 功能描述:3.3 V, 【15 kV ESD-Protected, Half- and Full-Duplex, RS-485/RS-422 Transceivers |
| ADM307EARZ-REEL7 | 制造商:AD 制造商全稱:Analog Devices 功能描述:3.3 V, 【15 kV ESD-Protected, Half- and Full-Duplex, RS-485/RS-422 Transceivers |
| ADM307EYRZ | 制造商:AD 制造商全稱:Analog Devices 功能描述:3.3 V, 【15 kV ESD-Protected, Half- and Full-Duplex, RS-485/RS-422 Transceivers |
| ADM307EYRZ-REEL7 | 制造商:AD 制造商全稱:Analog Devices 功能描述:3.3 V, 【15 kV ESD-Protected, Half- and Full-Duplex, RS-485/RS-422 Transceivers |
| ADM3082 | 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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