Datasheet > ADUM7240ARZ-RL7

ADUM7240ARZ-RL7

更新时间： 2024-11-27 12:20:47

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亚德诺 - ADI		/
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16页	267K
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1 kV, Dual Channel Digital Isolators

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ADUM7240ARZ-RL7 数据手册

1 kV, Dual Channel Digital Isolators

ADuM7240/ADuM7241

Data Sheet

FEATURES

FUNCTIONAL BLOCK DIAGRAMS

Narrow-body, RoHS-compliant, 8-lead SOIC

Safety and regulatory approvals

UL recognition (pending)

UL 1577: 1000 V rms for 1 minute

Low power operation

ADuM7240

DD1

DD2

ENCODE

DECODE

GND

5 V operation

2.4 mA per channel maximum at 0 Mbps to 1 Mbps

11.8 mA per channel maximum at 25 Mbps

3.3 V operation

Figure 1. ADuM7240

1.7 mA per channel maximum at 0 Mbps to 1 Mbps

8.2 mA per channel maximum at 25 Mbps

Bidirectional communication

Up to 25 Mbps data rate (NRZ)

3 V/5 V level translation

ADuM7241

DD1

DD2

DECODE

ENCODE

DECODE

High temperature operation: 105°C

High common-mode transient immunity: >15 kV/μs

GND

Figure 2. ADuM7241

APPLICATIONS

General-purpose multichannel isolation

Data converter isolation

Industrial field bus isolation

GENERAL DESCRIPTION

The ADuM7240/ADuM7241¹are dual channel digital isolators

based on the Analog Devices, Inc., iCoupler® technology.

Combining high speed CMOS and monolithic air core trans-

former technologies, these isolation components provide

outstanding performance characteristics superior to the alterna-

tives, such as optocoupler devices and other integrated couplers.

ADuM7240/ADuM7241 provide low pulse width distortion

(<5 ns for C grade). In addition, every model has an input glitch

filter to protect against extraneous noise disturbances.

The ADuM7240/ADuM7241 provide two independent

isolation channels and are available in two channel configura-

tions with 1 Mbps or 25 Mbps data rates (see the Ordering

Guide). All models operate with the supply voltage on either

side ranging from 3.0 V to 5.5 V, providing compatibility with

lower voltage systems as well as enabling voltage translation

functionality across the isolation barrier. The ADuM7240/

ADuM7241 also have an output default high logic state in the

absence of input power.

The ADuM7240/ADuM7241 dual 1 kV digital isolation devices

are packaged in a narrow-body 8-lead SOIC. The ADuM7240/

ADuM7241 offer a cost-effective option compared to 2.5 kV or

5 kV isolators where only functional isolation is needed.

Like other Analog Devices isolators, the ADuM7240/ADuM7241

offer very low power consumption, consuming one-tenth to

one-sixth the power of comparable isolators at data rates up to

25 Mbps. Despite the low power consumption, all models of the

¹Protected by U.S. Patents 5,952,849; 6,873,065; and 7,075,329. Other patents pending.

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

rightsof third parties that may result fromits 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 andregisteredtrademarks 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

www.analog.com

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ADUM7240ARZ-RL7 替代型号

型号	品牌	替代类型	描述	数据表
ADUM7240ARZ	ADI	完全替代	1 kV, Dual Channel Digital Isolators

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