ACPL-785E Datasheet, PDF (1/16 Pages) AVAGO TECHNOLOGIES LIMITED – Hermetically Sealed Analog Isolation Amplifi er

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
V_DD1 1
IDD2
8 V_DD2
VIN+ 2
+
V_IN– 3
–
+
7 V_OUT+
–
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.