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参数资料
| 型号： | ADM2490E |
| 厂商： | Analog Devices, Inc. |
| 元件分类： | RS-485 |
| 英文描述： | High Speed, ESD-Protected, Full-Duplex, iCoupler, Isolated RS-485 Transceiver |
| 中文描述： | 高速，ESD保护，全双工，所以iCoupler，隔离型RS - 485收发器 |
| 文件页数： | 1/16页 |
| 文件大小： | 470K |
| 代理商： | ADM2490E |
High Speed, ESD-Protected, Full-Duplex,
i
Coupler
, Isolated RS-485 Transceiver
ADM2490E
FEATURES
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.
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
Isolated, full-duplex RS-485/RS-422 transceiver
±8 kV ESD protection on RS-485 input/output pins
16 Mbps data rate
Complies with ANSI TIA/EIA RS-485-A-1998 and
ISO 8482: 1987(E)
Suitable for 5 V or 3 V operation (V
DD1
)
High common-mode transient immunity: >25 kV/μs
Receiver has open-circuit, fail-safe design
32 nodes on the bus
Thermal shutdown protection
Safety and regulatory approvals pending
UL recognition: 5000 V rms isolation voltage
for 1 minute per UL 1577
VDE certificate of conformity
DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-01
DIN EN 60950 (VDE 0805): 2001-12; EN 60950: 2000
V
IORM
= 848 V
PEAK
Operating temperature range: 40°C to +105°C
Wide-body, 16-lead SOIC package
APPLICATIONS
Isolated RS-485/RS-422 interfaces
Industrial field networks
INTERBUS
Multipoint data transmission systems
FUNCTIONAL BLOCK DIAGRAM
V
DD1
GND
1
A
B
V
DD2
GND
2
G
Y
Z
TxD
RxD
ADM2490E
0
Figure 1.
GENERAL DESCRIPTION
The ADM2490E is an isolated data transceiver with ±8 kV ESD
protection and is suitable for high speed, full-duplex
communication on multipoint transmission lines. It is designed
for balanced transmission lines and complies with ANSI
TIA/EIA RS-485-A-1998 and ISO 8482: 1987(E). The device
employs Analog Devices, Inc.,
i
Coupler technology to combine
a 2-channel isolator, a 3-state differential line driver, and a
differential input receiver into a single package.
The differential transmitter outputs and receiver inputs feature
electrostatic discharge circuitry that provides protection to
±8 kV using the human body model (HBM). The logic side of
the device can be powered with either a 5 V or a 3 V supply,
whereas the bus side requires an isolated 5 V supply.
The device has current-limiting and thermal shutdown features
to protect against output short circuits and situations where bus
contention could cause excessive power dissipation.
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相关代理商/技术参数 |
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| ADM2490E_VA | 制造商:AD 制造商全称:Analog Devices 功能描述:High Speed, ESD-Protected, Full-Duplex, iCoupler Isolated RS-485 Transceiver |
| ADM2490EBRWZ | 功能描述:IC TXRX RS-485 ISOLATED 16-SOIC RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:iCoupler® 标准包装:250 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:3 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:带卷 (TR) |
| ADM2490EBRWZ-REEL7 | 功能描述:IC TXRX RS-485 HS ESD 16-SOIC RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:iCoupler® 标准包装:27 系列:- 类型:收发器 驱动器/接收器数:3/3 规程:RS232，RS485 电源电压:4.75 V ~ 5.25 V 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC 包装:管件 |
| ADM2490EBRWZ-REEL71 | 制造商:AD 制造商全称:Analog Devices 功能描述:High Speed, ESD-Protected, Full-Duplex, iCoupler, Isolated RS-485 Transceiver |
| ADM2491E | 制造商:AD 制造商全称:Analog Devices 功能描述:High Speed, ESD-Protected, Half-/Full-Duplex, iCoupler Isolated RS-485 Transceiver |
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