ADUM1310BRWZ【PDF 1/24 页】IC ISOLATOR DGTL 3CH UNI 16-SOIC

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Triple-Channel Digital Isolators

Data Sheet

FEATURES

ADuM1310 / ADuM1311

FUNCTIONAL BLOCK DIAGRAMS

Low power operation

5 V operation

1.7 mA per channel maximum at 0 Mbps to 2 Mbps

V DD1

GND 1

ADuM1310

16 V DD2

15 GND 2

4.0 mA per channel maximum at 2 Mbps to 10 Mbps

V IA

ENCODE

DECODE

14 V OA

3 V operation

1.0 mA per channel maximum at 0 Mbps to 2 Mbps

2.1 mA per channel maximum at 2 Mbps to 10 Mbps

V IB

V IC

ENCODE

DECODE

13 V OB

12 V OC

Bidirectional communication

3 V/5 V level translation

Schmitt trigger inputs

DISABLE

11 NC

10 CTRL 2

High temperature operation: 105°C

Up to 10 Mbps data rate (NRZ)

GND 1

GND 2

Programmable default output state

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

16-lead, RoHS-compliant, SOIC wide body package

Figure 1. ADuM1310

8.1 mm external creepage

V DD1

ADuM1311

16 V DD2

Safety and regulatory approvals

UL recognition: 2500 V rms for 1 minute per UL 1577

GND 1

15 GND 2

CSA Component Acceptance Notice #5A

V IA

ENCODE

DECODE

14 V OA

VDE certificate of conformity

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

V IORM = 560 V peak working voltage

APPLICATIONS

General-purpose multichannel isolation

SPI interface/data converter isolation

RS-232/RS-422/RS-485 transceiver

V IB

V OC

CTRL 1

GND 1

ENCODE

DECODE

ENCODE

13 V OB

12 V IC

11 NC

10 CTRL 2

GND 2

Industrial field bus isolation

GENERAL DESCRIPTION

The ADuM131x 1 are 3-channel digital isolators based on

Analog Devices, Inc., i Coupler? 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.

By avoiding the use of LEDs and photodiodes, i Coupler devices

remove the design difficulties commonly associated with opto-

couplers. The typical optocoupler concerns regarding uncertain

current transfer ratios, maximum operating temperature, and

lifetime effects are eliminated with the simple i Coupler digital

interfaces and stable performance characteristics. The need for

external drivers and other discrete components is eliminated

with these i Coupler products. Furthermore, i Coupler devices

consume one-tenth to one-sixth the power of optocouplers at

Figure 2. ADuM1311

comparable signal data rates. The i Coupler also offers higher

channel densities and more options for channel directionality.

The ADuM131x isolators provide three independent isolation

channels in a variety of channel configurations and data rates

up to 10 Mbps (see the Ordering Guide). All models operate

with the supply voltage on either side ranging from 2.7 V to

5.5 V, providing compatibility with lower voltage systems as well

as enabling voltage translation functionality across the isolation

barrier. All products allow the user to predetermine the default

output state in the absence of input V DD1 power with a simple

control pin. Unlike other optocoupler alternatives, the ADuM131x

isolators have a patented refresh feature that ensures dc correctness

in the absence of input logic transitions and during power-up/

power-down conditions.

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

Rev. I

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.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Trademarks and registered trademarks are the property of their respective owners.

Technical Support

www.analog.com

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