ADUM1286BRZ 查看數據表（PDF） - Analog Devices

零件编号

产品描述 (功能)

生产厂家

ADUM1286BRZ

3 kV RMS Dual Channel Digital Isolators

Analog Devices 

Data Sheet

3 kV RMS Dual Channel Digital Isolators

ADuM1280/ADuM1281/ADuM1285/ADuM1286

FEATURES

Up to 100 Mbps data rate (NRZ)

Low propagation delay: 20 ns typical

Low dynamic power consumption

Bidirectional communication

3 V to 5 V level translation

High temperature operation: 125°C

High common-mode transient immunity: >25 kV/μs

Default high output: ADuM1280/ADuM1281

Default low output: ADuM1285/ADuM1286

Narrow body, RoHS-compliant, 8-lead SOIC

Safety and regulatory approvals

UL recognition: 3000 V rms for 1 minute per UL 1577

CSA Component Acceptance Notice 5A

VDE Certificate of Conformity

DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12

VIORM = 560 V peak

Qualified for automotive applications

APPLICATIONS

General-purpose multichannel isolation

Data converter isolation

Industrial field bus isolation

Hybrid electric vehicles, battery monitor, and motor drive

GENERAL DESCRIPTION

The ADuM1280/ADuM1281/ADuM1285/ADuM12861 are dual-

channel digital isolators based on the Analog Devices, Inc.,

iCoupler® technology. Combining high speed CMOS and

monolithic air core transformer technology, these isolation

components provide outstanding performance characteristics

superior to alternatives, such as optocoupler devices and other

integrated couplers.

With propagation delay at 20 ns, pulse width distortion is less than

2 ns for C grade. Channel-to-channel matching is tight at 5 ns for

C grade. The two channels of the ADuM1280/ADuM1281/

ADuM1285/ADuM1286 are independent isolation channels and

are available in two channel configurations with three different data

rates up to 100 Mbps (see the Ordering Guide). Industrial grade

FUNCTIONAL BLOCK DIAGRAMS

ADuM1280/

VDD1 1 ADuM1285

VIA 2

ENCODE

VIB 3

ENCODE

DECODE

DECODE

8 VDD2

7 VOA

6 VOB

GND1 4

5 GND2

Figure 1. ADuM1280/ADuM1285

ADuM1281/

VDD1 1 ADuM1286

VOA 2

DECODE

VIB 3

ENCODE

ENCODE

DECODE

8 VDD2

7 VIA

6 VOB

GND1 4

5 GND2

Figure 2. ADuM1281/ADuM1286

models operate with the supply voltage on either side ranging from

3.0 V to 5.5 V and the automotive grades operate from 3.0 V to

5.5 V, providing compatibility with lower voltage systems as well as

enabling a voltage translation functionality across the isolation

barrier. Unlike other optocoupler alternatives, the ADuM1280/

ADuM1281/ADuM1285/ADuM1286 isolators have a patented

refresh feature that ensures dc correctness in the absence of input

logic transitions. When power is first applied or is not yet applied

to the input side, the ADuM1280 and ADuM1281 have a default

high output, and the ADuM1285 and ADuM1286 have a default

low output.

For more information on safety and regulatory approvals, go to

www.analog.com/icouplersafety.

1 Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329. Other patents are pending.

Rev. C

Document Feedback

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 ©2012–2015 Analog Devices, Inc. All rights reserved.

Technical Support

www.analog.com

Share Link: