ACPL-785E 데이터 시트보기 (PDF) - Avago Technologies

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ACPL-785E

Hermetically Sealed Analog Isolation Amplifi er

Avago Technologies 

ACPL-785E , HCPL-7850, HCPL-7851, 5962-97557

Hermetically Sealed Analog Isolation Amplifier

Data Sheet

Description

The HCPL-7850, HCPL-7851 and ACPL-785E are isolation

amplifiers that provide accurate, electrically isolated

and amplified representations of voltage and current.

When used with a shunt resistor to monitor the motor

phase current in a high speed motor drive, the device will

offer superior reliability compared with the traditional

solutions such as current transformers and Hall-effect

sensors. These devices consist of a sigma-delta analog-to-

digital converter optically coupled to a digital-to-analog

converter in a hermetically sealed package. The products

are capable of operation and storage over the full military

temperature range and may be purchased as a standard

product (HCPL-7850), with full MIL-PRF-38534 Class H

testing (HCPL-7851), with MIL-PRF-38534 Class E testing

(Class K with exceptions) or from the DLA Standard Micro-

circuit Drawing (SMD) 5962-97557. Details of the Class E

program may be found on page 16 of this datasheet.

Schematic Diagram

IDD1

VDD1 1

IDD2

8 VDD2

VIN+ 2

+

VIN– 3

–

+

7 VOUT+

–

6 VOUT–

GND1 4

SHIELD

5 GND2

Features

 Performance guaranteed over full military temperature

range: -55° C to +125° C

 Manufactured and tested on a MIL-PRF-38534 certified

line

 Hermetically sealed packages

 Dual marked with device part number and DLA

drawing number

 QML-38534, Class H and Class E

 HCPL-7840 function compatibility

 High common mode rejection (CMR): 8 kV/s at VCM =

1000 V

 5% gain tolerance

 0.1% nonlinearity

 Low offset voltage and offset temperature coefficient

 100 kHz bandwidth

Applications

 Industrial, military and space systems

 High reliability systems

 Harsh industrial environments

 Transportation, medical, and life critical systems

 General purpose analog signal isolation

A 0.1 F 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.

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