Datasheet > AD7400_06

AD7400_06

更新时间： 2024-11-19 04:04:19

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
20页	442K
描述
Isolated Sigma-Delta Modulator

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AD7400_06 数据手册

Isolated Sigma-Delta Modulator

AD7400

FEATURES

GENERAꢀ DESCRIPTION

10 MHz clock rate

Second-order modulator

16 bits no missing codes

2 ꢀSB INꢀ typical at 16 bits

3.5 μV/°C maximum offset drift

On-board digital isolator

On-board reference

ꢀow power operation: 18 mA maximum at 5.25 V

−40°C to +105°C operating range

16-lead SOIC package

AD7401, external clock version

Safety and regulatory approvals

Uꢀ recognition

The AD7400¹is a second-order, Σ-Δ modulator that converts

an analog input signal into a high speed, 1-bit data stream with

on-chip digital isolation based on Analog Devices, Inc.

iCoupler® technology. The AD7400 operates from a 5 V power

supply and accepts a differential input signal of ±±00 mV

(±ꢀ±0 mV full scale). The analog input is continuously sampled

by the analog modulator, eliminating the need for external

sample-and-hold circuitry. The input information is contained

in the output stream as a density of ones with a data rate of

10 MHz. The original information can be reconstructed with an

appropriate digital filter. The serial I/O can use a 5 V or a ꢀ V

supply (V_DD±).

The serial interface is digitally isolated. High speed CMOS,

combined with monolithic air core transformer technology,

means the on-chip isolation provides outstanding performance

characteristics superior to alternatives such as optocoupler

devices. The part contains an on-chip reference. The AD7400 is

offered in a 16-lead SOIC and has an operating temperature

range of −40°C to +105°C.

3750 V rms for 1 minute per Uꢀ 1577

CSA Component Acceptance Notice #5A

VDE Certificate of Conformity

DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-01

DIN EN 60950 (VDE 0805): 2001-12; EN 60950: 2000

V_IORM= 891 V peak

APPꢀICATIONS

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

pending.

AC motor controls

Data acquisition systems

A/D + opto-isolator replacements

FUNCTIONAꢀ BꢀOCK DIAGRAM

DD2

DD1

AD7400

T/H

Σ-Δ ADC

–

UPDATE

WATCHDOG

ENCODE

DECODE

BUF

MDAT

REF

CONTROL LOGIC

UPDATE

WATCHDOG

ENCODE

MCLKOUT

DECODE

GND

Figure 1.

Rev. A

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

12 3 4 5 6 7...20

中文翻译

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与AD7400_06相关器件

型号	品牌	获取价格	描述	数据表
AD7400A	ADI	获取价格	Isolated Sigma-Delta Modulator
AD7400AYNSZ	ADI	获取价格	Isolated Sigma-Delta Modulator
AD7400AYNSZREEL	ADI	获取价格	Isolated Sigma-Delta Modulator
AD7400AYNSZREEL7	ADI	获取价格	Isolated Sigma-Delta Modulator
AD7400AYRWZ	ADI	获取价格	Isolated Sigma-Delta Modulator
AD7400AYRWZ1	ADI	获取价格	Isolated Sigma-Delta Modulator
AD7400AYRWZREEL	ADI	获取价格	Isolated Sigma-Delta Modulator
AD7400AYRWZREEL7	ADI	获取价格	Isolated Sigma-Delta Modulator
AD7400BRW	ADI	获取价格	Isolated Sigma-Delta Modulator
AD7400YRWZ	ADI	获取价格	Isolated Sigma-Delta Modulator

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