ADUM5240ARZ-RL7【PDF 1/16 页】IC ISOLATOR 2CH W/CONV 8-SOIC

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Sheet目录308

[1页]2页 3页 4页 5页

Dual-Channel Isolators with iso Power

Integrated DC-to-DC Converter, 50 mW

Data Sheet

FEATURES

Integrated isolated dc-to-dc converter

ADuM5240/ADuM5241/ADuM5242

FUNCTIONAL BLOCK DIAGRAMS

Regulated 5 V/10 mA output

V DD 1

OSC.

RECT.

REG.

V ISO

Dual dc to 1 Mbps (NRZ) signal isolation channels

Narrow-body, 8-lead SOIC package

V IA 2

ENCODE

DECODE

V OA

RoHS compliant

High temperature operation: 105°C

V IB 3

ENCODE

DECODE

V OB

Precise timing characteristics

3 ns maximum pulse width distortion

3 ns maximum channel-to-channel matching

70 ns maximum propagation delay

GND 4

Figure 1. ADuM5240

GND ISO

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

Safety and regulatory approvals

UL recognition

V DD 1

OSC.

RECT.

REG.

V ISO

2500 V rms for 1 minute, per UL 1577

CSA Component Acceptance Notice #5A

V OA 2

DECODE

ENCODE

V IA

VDE certificate of conformity

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

V IORM = 560 V peak

V IB 3

ENCODE

DECODE

V OB

GENERAL DESCRIPTION

The ADuM524x 1 are dual-channel digital isolators with iso Power?

integrated, isolated power. Based on the Analog Devices, Inc.,

GND 4

Figure 2. ADuM5241

GND ISO

i Coupler? technology, a chip scale dc-to-dc converter provides

V DD 1

OSC.

RECT.

REG.

V ISO

up to 50 mW of regulated, isolated power at 5 V, which eliminates

the need for a separate isolated dc-to-dc converter in low power

V OA 2

DECODE

ENCODE

V IA

isolated designs. The Analog Devices chip scale transformer

i Coupler technology is used both for the isolation of the logic

signals as well as for the dc-to-dc converter. The result is a small

form factor, total isolation solution.

V OB 3

GND 4

DECODE

ENCODE

V IB

GND ISO

The ADuM524x isolators provide two independent isolation

channels in a variety of channel configurations, operating from

a 5 V input supply. ADuM524x units can be used in combination

with other i Coupler products to achieve greater channel counts.

Figure 3. ADuM5242

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

Rev. B

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 www.analog.com

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