Datasheet > ADM3251E_1

ADM3251E_1

更新时间： 2024-01-24 00:02:04

品牌	Logo	应用领域
亚德诺 - ADI		驱动器
页数	文件大小	规格书
16页	357K
描述
Isolated, Single-Channel RS-232 Line Driver/Receiver

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中文翻译

获取价格

数据手册

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ADM3251E_1 数据手册

Isolated, Single-Channel

RS-232 Line Driver/Receiver

ADM3251E

FEATURES

FUNCTIONAL BLOCK DIAGRAM

0.1µF

16V

0.1µF

10V

0.1µF

16V

0.1µF

16V

2.5 kV fully isolated (power and data) RS-232 transceiver

isoPower integrated, isolated dc-to-dc converter

460 kbps data rate

0.1µF

1 Tx and 1 Rx

V+

ISO

C1+ C1–

C2+

V–

C2–

VOLTAGE

DOUBLER

VOLTAGE

INVERTER

ADM3251E

Meets EIA/TIA-232E specifications

ESD protection on R_INand T_OUTpins

8 kV: contact discharge

RECT

REG

OSC

15 kV: air gap discharge

0.1µF

0.1 μF charge pump capacitors

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

Safety and regulatory approvals (pending)

UL recognition

DECODE

ENCODE

DECODE

OUT

2500 V rms for 1 minute per UL 1577

VDE Certificate of Conformity

GND

ISO

*5kΩ PULL-DOWN RESISTOR ON THE RS-232 INPUT.

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

Figure 1.

_IORM= 560 V peak

Operating temperature range: −40°C to +85°C

Wide body, 20-lead SOIC package

APPLICATIONS

High noise data communications

Industrial communications

General-purpose RS-232 data links

Industrial/telecommunications diagnostic ports

Medical equipment

GENERAL DESCRIPTION

The ADM3251E conforms to the EIA/TIA-232E and ITU-T V. 28

specifications and operates at data rates up to 460 kbps.

The ADM3251E is a high speed, 2.5 kV fully isolated, single-

channel RS-232/V.28 transceiver device that operates from a

single 5 V power supply. Due to the high ESD protection on the

Four external 0.1 μF charge pump capacitors are used for the

voltage doubler/inverter, permitting operation from a single

5 V supply.

R_INand T_OUTpins, the device is ideally suited for operation in

electrically harsh environments or where RS-232 cables are

frequently being plugged and unplugged.

The ADM3251E is available in a 20-lead, wide body SOIC package

and is specified over the −40°C to +85°C temperature range.

The ADM3251E incorporates dual-channel digital isolators with

isoPower™ integrated, isolated power. There is no requirement

to use a separate isolated dc-to-dc converter. Chip-scale trans-

former iCoupler® technology from Analog Devices, Inc., is used

both for the isolation of the logic signals as well as for the

integrated dc-to-dc converter. The result is a total isolation

solution.

Rev. 0

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 registeredtrademarks arethe 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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与ADM3251E_1相关器件

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ADM3251E_VE	ADI	获取价格	Isolated, Single-Channel RS-232 Line Driver/Receiver
ADM3251EARWZ	ADI	获取价格	Isolated, Single-Channel RS-232 Line Driver/Receiver
ADM3251EARWZ-REEL	ADI	获取价格	Isolated, Single-Channel RS-232 Line Driver/Receiver
ADM3252E	ADI	获取价格	Isolated, Dual Channel, RS-232 Line Driver/Receiver
ADM3252EABCZ	ADI	获取价格	Isolated, Dual Channel, RS-232 Line Driver/Receiver
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ADM3260ARSZ-RL7	ADI	获取价格	Hot Swappable, Dual I2C Isolators with Integrated DC-to-DC Converter
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