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ADM487E

更新时间： 2024-01-04 18:08:05

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
16页	324K
描述
5 V, 【15 kV ESD Protected Half-Duplex, RS-485/RS-422 Transceivers

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ADM487E 技术参数

生命周期：	Active	零件包装代码：	SOIC
包装说明：	ROHS COMPLIANT, MS-012AA, SOIC-8	针数：	8
Reach Compliance Code：	unknown	风险等级：	5.51
差分输出：	YES	驱动器位数：	1
输入特性：	DIFFERENTIAL SCHMITT TRIGGER	接口集成电路类型：	LINE TRANSCEIVER
接口标准：	EIA-422; EIA-485	JESD-30 代码：	R-PDSO-G8
长度：	4.9 mm	功能数量：	1
端子数量：	8	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	SOP	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	最大接收延迟：	200 ns
接收器位数：	1	座面最大高度：	1.75 mm
最大供电电压：	5.5 V	最小供电电压：	4.5 V
标称供电电压：	5 V	表面贴装：	YES
温度等级：	INDUSTRIAL	端子形式：	GULL WING
端子节距：	1.27 mm	端子位置：	DUAL
最大传输延迟：	60 ns	宽度：	3.9 mm
Base Number Matches：	1

ADM487E 数据手册

5 V, ± ±5 ꢀV ꢁES ꢂProteotꢃ

Half-Supltx, RE-485/RE-422 TPansetivtPs

ASM485ꢁ/ASM487ꢁ/ASM±487ꢁ

FUNCTIONAL BLOCK DIAGRAM

FEATURES

TIA/EIA RS-485-/RS-422-compliant

ESD protection on RS-485 I/O pins

15 kV human body model

ADM485E/

ADM487E/

ADM1487E

Data rates

ADM487E: 250 kbps

ADM485E/ADM1487E: 2.5 Mbps

Half-duplex options

Reduced slew rates for low EMI

−7 V to +12 V common-mode input range

Thermal shutdown and short-circuit protection

8-lead SOIC packages

GND

APPLICATIONS

Figure 1.

Energy/power metering

Lighting systems

Industrial control

Telecommunications

Security systems

Instrumentation

GENERAL DESCRIPTION

The ADM485E/ADM487E/ADM1487E are 5 V, low power

data transceivers with 15 kV ESD protection suitable for half-

duplex communication on multipoint bus transmission lines.

They are designed for balanced data transmission and comply

with Telecommunication Industry Association/Electronics Indus-

tries Association (TIA/EIA) standards RS-485 and RS-422. The

ADM487E and ADM1487E have a 1/4 unit load receiver input

impedance that allows up to 128 transceivers on a bus, whereas

the ADM485E allows up to 32 transceivers on a bus. Because

only one driver is enabled at any time, the output of a disabled or

power-down driver is three-stated to avoid overloading the bus.

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 output

shorting is prevented with a thermal shutdown circuit.

The parts are fully specified over the industrial temperature

ranges and are available in 8-lead SOIC packages.

Table 1. Selection Table

Guaranteed

Half-/Full- Data Rate

Part

Number

Slew Rate Low Power Driver/Receiver Quiescent

Number of

Nodes on Bus Count

Duplex

(Mbps)

Limited

Shutdown

Enable

Current (μA)

ADM485E

ADM487E

ADM1487E Half

Half

2.5

0.25

2.5

Yes

300

120

230

128

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 registeredtrademarks arethe 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

www.analog.com

12 3 4 5 6 7...16

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与ADM487E相关器件

型号	品牌	获取价格	描述	数据表
ADM487E_15	ADI	获取价格	Half-Duplex, RS-485/RS-422 Transceivers
ADM487EARZ	ADI	获取价格	5 V, 【15 kV ESD Protected Half-Duplex, RS-485
ADM487EARZ-REEL7	ADI	获取价格	5 V, 【15 kV ESD Protected Half-Duplex, RS-485
ADM487EWARZ	ADI	获取价格	5 V, ±15 kV ESD Protected, Half Duplex RS-485
ADM488	ADI	获取价格	Full-Duplex, Low Power, Slew Rate Limited, EIA RS-485 Transceivers
ADM488_15	ADI	获取价格	Slew Rate Limited, EIA RS-485 Transceivers
ADM488A	ADI	获取价格	Full-Duplex, Low Power, Slew Rate Limited, EIA RS-485 Transceivers
ADM488ABRMZ	ADI	获取价格	Full-Duplex, Low Power, Slew Rate Limited, EIA RS-485 Transceivers
ADM488ABRMZ-REEL7	ADI	获取价格	Full-Duplex, Low Power, Slew Rate Limited, EIA RS-485 Transceivers
ADM488ABRZ	ADI	获取价格	Full-Duplex, Low Power, Slew Rate Limited, EIA RS-485 Transceivers

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