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HCPL-7851-200 Datasheet

  • HCPL-7851-200

  • Hermetically Sealed Analog Isolation Amplifier

  • 219.96KB

  • 17頁

  • AGILENT   AGILENT

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Hermetically Sealed Analog
Isolation Amplifier
Technical Data
HCPL-7850
HCPL-7851
5962-97557
Features
鈥?Performance Guaranteed
over Full Military
Temperature Range: 鈥?5藲C
to +125藲C
鈥?Manufactured and Tested on
a MIL-PRF-38534 Certified
Line
鈥?Hermetically Sealed
Packages
鈥?Dual Marked with Device
Part Number and DSCC
Drawing Number
鈥?QML-38534, Class H
鈥?HCPL-7840 Function
Compatibility
鈥?High Common Mode
Rejection (CMR):
8 kV/
碌
s at VCM = 1000 V
鈥?5% Gain Tolerance
鈥?0.1% Nonlinearity
鈥?Low Offset Voltage and
Offset Temperature
Coefficient
鈥?100 kHz Bandwidth
Applications
鈥?Industrial and Military
鈥?High Reliability Systems
鈥?Harsh Industrial
Environments
鈥?Transportation, Medical,
and Life Critical Systems
鈥?General Purpose Analog
Signal Isolation
鈥?Motor Phase and Rail
Current Sensing
鈥?Inverter Current Sensing
鈥?Switched Mode Power
Supply Signal Isolation
鈥?General Purpose Current
Sensing and Monitoring
Schematic Diagram
I
DD1
V
DD1
V
IN+
V
IN鈥?/div>
GND1
1
2
3
4
+
鈥?/div>
+
鈥?/div>
I
DD2
8
7
V
DD2
V
OUT+
V
OUT鈥?/div>
GND2
6
5
SHIELD
Description
The HCPL-7850/7851 is an
isolation amplifier that provides
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. The HCPL-7850/7851
consists 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 can be purchased as
either commercial product or
with full MIL-PRF-38534 Class H
testing or from the appropriate
DSCC drawing. All devices are
manufactured and tested on a
MIL-PRF-38534 certified line and
are included in the DSCC
Qualified Manufacturers List,
QML-38534 for Hybrid
Microcircuits.
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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