Datasheet > 放大器电路 > 隔离放大器> HCPL-7800-500E

HCPL-7800-500E

更新时间： 2024-11-04 12:56:23

品牌	Logo	应用领域
安华高科 - AVAGO		/
页数	文件大小	规格书
18页	325K
描述
15 kV/Î¼s Common-Mode Rejection at VCM = 1000 V

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HCPL-7800-500E 数据手册

HCPL-7800A/HCPL-7800

Isolation Amplifer

Datasheet

Lead (Pb) Free

RoHS 6 fully

compliant

RoHS 6 fully compliant options available;

-xxxE denotes a lead-free product

Description

Features

• 15 kV/µs Common-Mode Rejection at V = 1000 V

• Compact, Auto-Insertable Standard 8-pin DIP Pack-

age

• 0.00025 V/V/°C Gain Drift vs. Temperature

• 0.3 mV Input Oﬀset Voltage

• 100 kHz Bandwidth

• 0.004% Nonlinearity

• WorldwideSafetyApproval:UL1577(3750Vrms/1min.)

and CSA, IEC/EN/DIN EN 60747-5-2

• Advanced Sigma-Delta (Σ−∆) A/D Converter Technol-

ogy

The HCPL-7800(A) isolation ampliﬁer family was designed

for current sensing in electronic motor drives. In a typical

implementation, motor currents ﬂow through an external

resistor and the resulting analog voltage drop is sensed

by the HCPL-7800(A). A diﬀerential output voltage is

created on the other side of the HCPL-7800(A) optical

isolation barrier. This diﬀerential output voltage is pro-

portional to the motor current and can be converted to

a single-ended signal by using an op-amp as shown in

the recommended application circuit. Since common-

mode voltage swings of several hundred volts in tens of

nanoseconds are common in modern switching inverter

motor drives, the HCPL-7800(A) was designed to ignore

very high common-mode transient slew rates (of at least

10 kV/µs).

• Fully Diﬀerential Circuit Topology

The high CMR capability of the HCPL-7800(A) isolation

ampliﬁer provides the precision and stability needed to

accurately monitor motor current in high noise motor

control environ-ments, providing for smoother control

(less “torque ripple”) in various types of motor control

applications.

Applications

• Motor Phase and Rail Current Sensing

• Inverter Current Sensing

• Switched Mode Power Supply Signal Isolation

• General Purpose Current Sensing and Monitoring

• General Purpose Analog Signal Isolation

The product can also be used for general analog signal

isolation applications requiring high accuracy, stability,

and linearity under similarly severe noise con-ditions.

For general applications, we recommend the HCPL-7800

(gain tolerance of 3%). For precision applications Avago

Technologies oﬀers the HCPL-7800A with part-to-part

gain tolerance of 1%. The HCPL-7800(A) utilizes sigma

delta (Σ−∆) analog-to-digital converter technology,

chopper stabilized ampliﬁers, and a fully diﬀerential

circuit topology.

Functional Diagram

I_DD1

I_DD2

V_DD1

V_IN+

V_IN-

V_DD2

V_OUT+

Together, these features deliver unequaled isolation-

mode noise rejection, as well as excellent oﬀset and

gain accuracy and stability over time and temperature.

This performance is delivered in a compact, auto-insert-

able, industry standard 8-pin DIP package that meets

worldwide regulatory safety standards. (A gull-wing

surface mount option #300 is also available).

V_OUT-

GND1

GND2

SHIELD

NOTE: A 0.1 μF bypass capacitor must be connected

between pins 1 and 4 and between pins 5 and 8.

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.

ꢀ

12 3 4 5 6 7...18

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与HCPL-7800-500E相关器件

型号	品牌	获取价格	描述	数据表
HCPL7800A	ETC	获取价格	High CMR Isolation Amplifiers 隔离放大器
HCPL-7800A	AGILENT	获取价格	High CMR Isolation Amplifiers
HCPL-7800A	AVAGO	获取价格	15 kV/Î¼s Common-Mode Rejection at VCM = 1000
HCPL-7800A	HP	获取价格	High CMR Isolation Amplifiers
HCPL-7800A#300	AVAGO	获取价格	ISOLATION AMPLIFIER, 3750V ISOLATION-MIN, 100kHz BAND WIDTH, PDSO8, SMT-8
HCPL-7800A#300	AGILENT	获取价格	Isolation Amplifier, 1 Func, 3750V Isolation-Min, 100MHz Band Width, Hybrid, PDSO8, SMT-8
HCPL-7800A#300E	AVAGO	获取价格	ISOLATION AMPLIFIER, 3750 V ISOLATION-MIN, 100 kHz BAND WIDTH, PDSO8, LEAD FREE, SMT-8
HCPL-7800A#500	AVAGO	获取价格	ISOLATION AMPLIFIER, 3750V ISOLATION-MIN, 100kHz BAND WIDTH, PDSO8, SMT-8
HCPL-7800A#500	AGILENT	获取价格	Isolation Amplifier, 1 Func, 3750V Isolation-Min, 100MHz Band Width, Hybrid, PDSO8, SMT-8
HCPL-7800A#500E	AVAGO	获取价格	ISOLATION AMPLIFIER, 3750V ISOLATION-MIN, 100kHz BAND WIDTH, PDSO8, LEAD FREE, SMT-8

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