Datasheet > HCPL-7820#300

HCPL-7820#300

更新时间： 2024-11-03 23:55:07

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其他 - ETC		隔离放大器
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15页	286K
描述
Isolation Amplifier

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HCPL-7820#300 数据手册

High CMR Analog Isolation

Amplifiers

Technical Data

HCPL-7820

HCPL-7825

Features

Applications

• Motor Phase and Rail

Current Sensing

• General Purpose Current

Sensing and Monitoring

• High-Voltage Monitoring

• Switched Mode Power

Supply Signal Isolation

• General Purpose Analog

Signal Isolation

• Transducer Isolation

rejection makes this product

suitable for noisy electrical

• Fast Propagation Delays for

Over-Current and Fault

Detection Sensing

• High Common Mode

Rejection (CMR): 30 kV/µs at

V_CM= 1000 V*

• 3% Gain Tolerance:

HCPL-7820

5% Gain Tolerance:

HCPL-7825

environments, such as those

generated by the high switching

rates of power IGBTs. Low offset

voltage together with low offset

change vs. temperature permits

accurate use of auto-calibration

techniques. Tight gain tolerance

with good nonlinearity further

provide the characteristics needed

to insure highly accurate motor

speed control. A high operating

temperature range with specified

performance parameters allow

• 0.05% Nonlinearity

• Low Offset Voltage and Off-

set Drift vs. Temperature

Description

The HCPL-7820/7825 high CMR

isolation amplifier consists of a

sigma-delta analog-to-digital

converter optically coupled to an

integrated output digital-to-analog

converter. When used with a

• 200 kHz Bandwidth

• Performance Specified for

Common Motor Control

Applications over -40°C to

100°C Temperature Range

Functional Diagram

• Worldwide Safety and

Regulatory Approval: UL

1577 (3750 V rms/1 Min),

VDE 0884 and CSA

• Compact Auto-Insertable

Standard 8-Pin DIP Package

• Advanced Sigma-Delta (Σ∆)

A/D Converter Technology

• 1 µm CMOS IC Technology

shunt resistor in the current path,

the HCPL-7820/7825 provides a

cost-effective, auto-insertion

compatible current sense solution.

Fast propagation delays allow this

part to be used in either motor

drive or inverter applications for

either phase current monitoring

or rail current fault detection

applications. High isolation mode

DD2

DD1

DD2

–

IN+

IN–

OUT+

OUT–

GND1

GND2

CMR SHIELD

A 0.1 µF bypass capacitor must be connected between pins 1 and 4 and between pins 5 and 8.

*The terms common-mode rejection (CMR) and isolation-mode rejection (IMR) are used interchangeably throughout this data sheet.

CAUTION: It is advised that normal static precautions be taken in handling and assembly of this component to

prevent damage and/or degradation which may be induced by ESD.

1-233

12 3 4 5 6 7...15

中文翻译

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与HCPL-7820#300相关器件

型号	品牌	获取价格	描述	数据表
HCPL-7820OPTION500	AGILENT	获取价格	Isolation Amplifier, 1 Func, 3750V Isolation-Min, 200MHz Band Width, CMOS, PDSO8
HCPL-7825	HP	获取价格	High CMR Analog Isolation Amplifiers
HCPL-7825	AGILENT	获取价格	High CMR Analog Isolation Amplifiers
HCPL-7825OPTION500	AGILENT	获取价格	Isolation Amplifier, 1 Func, 3750V Isolation-Min, 200MHz Band Width, CMOS, PDSO8
HCPL7840	AGILENT	获取价格	Analog Isolation Amplifier
HCPL-7840	HP	获取价格	Analog Isolation Amplifier
HCPL-7840	AVAGO	获取价格	Isolation Amplifier
HCPL-7840	AGILENT	获取价格	Analog Isolation Amplifier
HCPL-7840#060	AGILENT	获取价格	Isolation Amplifier, 1 Func, 3750V Isolation-Min, 100MHz Band Width, CMOS, PDIP8, DIP-8
HCPL-7840#300	AGILENT	获取价格	Isolation Amplifier, 1 Func, 3750V Isolation-Min, 100MHz Band Width, CMOS, PDSO8, SMT-8

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