ADuM2400_2401_2402_数字隔离

Data Sheet

Quad-Channel Digital IsolatorsADuM2400/ADuM2401/ADuM2402

FEATURES

Low power operation 5 V operation

1.0 mA per channel maximum @ 0 Mbps to 2 Mbps 3.5 mA per channel maximum @ 10 Mbps 31 mA per channel maximum @ 90 Mbps 3 V operation

0.7 mA per channel maximum @ 0 Mbps to 2 Mbps 2.1 mA per channel maximum @ 10 Mbps 20 mA per channel maximum @ 90 Mbps Bidirectional communication 3 V/5 V level translation

High temperature operation: 105°C High data rate: dc to 90 Mbps (NRZ) Precise timing characteristics

2 ns maximum pulse width distortion

2 ns maximum channel-to-channel matching High common-mode transient immunity: >25 kV/μs Output enable function

16-lead SOIC wide body package version (RW-16)

16-lead SOIC wide body enhanced creepage version (RI-16) Safety and regulatory approvals (RI-16 package)

UL recognition: 5000 V rms for 1 minute per UL 1577 CSA Component Acceptance Notice #5A IEC 60601-1: 250 V rms (reinforced) IEC 60950-1: 400 V rms (reinforced) VDE Certificate of Conformity

DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 VIORM = 846 V peak

APPLICATIONS

General-purpose, high voltage, multichannel isolation Medical equipment Motor drives Power supplies

GENERAL DESCRIPTION

The ADuM240x1 are 4-channel digital isolators based on Analog Devices, Inc., iCoupler® technology. Combining high speed CMOS and monolithic air core transformer technology, these isolation components provide outstanding performance characteristics that are superior to alternatives, such as optocoupler devices. By avoiding the use of LEDs and photodiodes, iCoupler devices remove the design difficulties commonly associated with opto-couplers. The typical optocoupler concerns regarding uncertain current transfer ratios, nonlinear transfer functions, and tempera-ture and lifetime effects are eliminated with the simple

1

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

Rev. E

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.

FUNCTIONAL BLOCK DIAGRAMS

VDD2GND2VOAVOBVOCVOD

E2100-GND72

0050

Figure 1. ADuM2400

VDD2GND2VOAVOBVOCVIDVE220-0GND72

0050

Figure 2. ADuM2401

VDD2GND2VOAVOBVICVIDVE23

0-0GND72

0050

Figure 3. ADuM2402

iCoupler digital interfaces and stable performance characteristics. Furthermore, iCoupler devices run at one-tenth to one-sixth the power of optocouplers at comparable signal data rates. The ADuM240x isolators provide four independent isolation channels in a variety of channel configurations and data rates (see the Ordering Guide). The ADuM240x models operate with the supply voltage of either side ranging from 2.7 V to 5.5 V, providing compatibility with lower voltage systems as well as enabling a voltage translation functionality across the isolation barrier. In

addition, the ADuM240x provide low pulse width distortion (<2 ns for CRWZ grade) and tight channel-to-channel matching (<2 ns for CRWZ grade). The ADuM240x isolators have a patented refresh feature that ensures dc correctness in the absence of input logic transitions and during power-up/power-down conditions.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.Tel: 781.329.4700 doc.guandang.net Fax: 781.461.3113 ©2005–2012 Analog Devices, Inc. All rights reserved.