ADM485ARZ

更新时间： 2024-01-29 08:28:28

品牌	Logo	应用领域
亚德诺 - ADI		线路驱动器或接收器驱动程序和接口接口集成电路光电二极管信息通信管理 PC
页数	文件大小	规格书
16页	607K
描述
Meets EIA RS-485 standard

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中文翻译

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技术参数
数据手册
替代型号

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ADM485ARZ 技术参数

是否无铅：	含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	SOIC
包装说明：	SOIC-8	针数：	8
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	0.71
Samacsys Confidence：	3	Samacsys Status：	Released
Samacsys PartID：	3592	Samacsys Pin Count：	8
Samacsys Part Category：	Integrated Circuit	Samacsys Package Category：	Small Outline Packages
Samacsys Footprint Name：	R-8 (SOIC)	Samacsys Released Date：	2015-04-16 09:48:08
Is Samacsys：	N	其他特性：	1 RECEIVER ACTIVE UNDER SHUTDOWN; COMMON I/O; TRISTATABLE RECEIVERS
差分输出：	YES	驱动器位数：	1
高电平输入电流最大值：	0.000001 A	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	JESD-609代码：	e3
长度：	4.9 mm	湿度敏感等级：	1
功能数量：	1	端子数量：	8
最高工作温度：	70 °C	最低工作温度：
最小输出摆幅：	1.5 V	最大输出低电流：	0.004 A
封装主体材料：	PLASTIC/EPOXY	封装代码：	SOP
封装等效代码：	SOP8,.25	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	峰值回流温度（摄氏度）：	260
电源：	5 V	认证状态：	Not Qualified
最大接收延迟：	30 ns	接收器位数：	1
座面最大高度：	1.75 mm	子类别：	Line Driver or Receivers
最大压摆率：	2.2 mA	最大供电电压：	5.25 V
最小供电电压：	4.75 V	标称供电电压：	5 V
表面贴装：	YES	技术：	BICMOS
温度等级：	COMMERCIAL	端子面层：	Matte Tin (Sn)
端子形式：	GULL WING	端子节距：	1.27 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	30
最大传输延迟：	15 ns	宽度：	3.9 mm
Base Number Matches：	1

ADM485ARZ 数据手册

5 V Low Power

EIA RS-485 Transceiver

ADM485

FEATURES

FUNCTIONAL BLOCK DIAGRAM

Meets EIA RS-485 standard

5 Mbps data rate

ADM485

Single 5 V supply

–7 V to +12 V bus common-mode range

High speed, low power BiCMOS

Thermal shutdown protection

Short-circuit protection

Driver propagation delay: 10 ns typical

Receiver propagation delay: 15 ns typical

High-Z outputs with power off

Superior upgrade for LTC485

GND

Figure 1.

APPLICATIONS

Low power RS-485 systems

DTE/DCE interface

Packet switching

Local area networks (LNAs)

Data concentration

Data multiplexers

Integrated services digital network (ISDN)

GENERAL DESCRIPTION

The ADM485 is a differential line transceiver suitable for high

speed bidirectional data communication on multipoint bus

transmission lines. It is designed for balanced data transmission

and complies with EIA standards RS-485 and RS-422. The part

contains a differential line driver and a differential line receiver.

Both the driver and the receiver can be enabled independently.

When disabled, the outputs are three-stated.

The receiver contains a fail-safe feature that results in a logic

high output state if the inputs are unconnected (floating).

The ADM485 is fabricated on BiCMOS, an advanced mixed

technology process combining low power CMOS with fast

switching bipolar technology. All inputs and outputs contain

protection against ESD; all driver outputs feature high source

and sink current capability. An epitaxial layer is used to guard

against latch-up.

The ADM485 operates from a single 5 V power supply.

Excessive power dissipation caused by bus contention or by

output shorting is prevented by a thermal shutdown circuit. If

during fault conditions, a significant temperature increase is

detected in the internal driver circuitry, this feature forces the

driver output into a high impedance state.

The ADM485 features extremely fast switching speeds. Minimal

driver propagation delays permit transmission at data rates up

to 5 Mbps while low skew minimizes EMI interference.

The part is fully specified over the commercial and industrial

temperature range and is available in 8-lead PDIP, 8-lead SOIC,

and small footprint, 8-lead MSOP packages.

Up to 32 transceivers can be connected simultaneously on a

bus, but only one driver should be enabled at any time. It is

important, therefore, that the remaining disabled drivers do not

load the bus. To ensure this, the ADM485 driver features high

output impedance when disabled and when powered down,

which minimizes the loading effect when the transceiver is not

being used. The high impedance driver output is maintained

over the common-mode voltage range of −7 V to +12 V.

Rev. F

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

www.analog.com

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中文翻译

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ADM485ARZ 替代型号

型号	品牌	替代类型	描述	数据表
ADM485ARMZ-REEL7	ADI	完全替代	5 V, Low Power, 5 Mbps, Half Duplex EIA RS-485 Transceiver
ADM485ARMZ	ADI	完全替代	5 V, Low Power, 5 Mbps, Half Duplex EIA RS-485 Transceiver
ADM485ARZ-REEL	ADI	完全替代	5 V, Low Power, 5 Mbps, Half Duplex EIA RS-485 Transceiver

与ADM485ARZ相关器件

型号	品牌	获取价格	描述	数据表
ADM485ARZ1	ADI	获取价格	Meets EIA RS-485 standard
ADM485ARZ-REEL	ADI	获取价格	5 V, Low Power, 5 Mbps, Half Duplex EIA RS-485 Transceiver
ADM485ARZ-REEL1	ADI	获取价格	Meets EIA RS-485 standard
ADM485E	ADI	获取价格	5 V, 【15 kV ESD Protected Half-Duplex, RS-485
ADM485E_15	ADI	获取价格	Half-Duplex, RS-485/RS-422 Transceivers
ADM485EARZ	ADI	获取价格	5 V, 【15 kV ESD Protected Half-Duplex, RS-485
ADM485EARZ-REEL7	ADI	获取价格	5 V, 【15 kV ESD Protected Half-Duplex, RS-485
ADM485JN	ADI	获取价格	+5 V Low Power EIA RS-485 Transceiver
ADM485JN	ROCHESTER	获取价格	LINE TRANSCEIVER, PDIP8, MO-095AA, PLASTIC, DIP-8
ADM485JNZ	ADI	获取价格	5 V, Low Power, 5 Mbps, Half Duplex EIA RS-485 Transceiver

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