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HCPL-7800-500

Description
ISOLATION AMPLIFIER, 3750V ISOLATION-MIN, 100kHz BAND WIDTH, PDSO8, SMT-8
CategoryAnalog mixed-signal IC    Amplifier circuit   
File Size304KB,18 Pages
ManufacturerAVAGO
Websitehttp://www.avagotech.com/
Download Datasheet Parametric View All

HCPL-7800-500 Overview

ISOLATION AMPLIFIER, 3750V ISOLATION-MIN, 100kHz BAND WIDTH, PDSO8, SMT-8

HCPL-7800-500 Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
MakerAVAGO
Parts packaging codeSOIC
package instructionSOP,
Contacts8
Reach Compliance Codecompliant
Is SamacsysN
Amplifier typeISOLATION AMPLIFIER
Nominal bandwidth (3dB)100 MHz
Maximum common mode voltage2.8 V
Minimum insulation voltage3750 V
JESD-30 codeR-PDSO-G8
length9.8 mm
Number of functions1
Number of terminals8
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)245
Certification statusNot Qualified
Maximum seat height4.455 mm
Supply voltage upper limit5.5 V
Nominal supply voltage (Vsup)5 V
surface mountYES
Temperature levelINDUSTRIAL
Terminal formGULL WING
Terminal pitch2.54 mm
Terminal locationDUAL
Maximum time at peak reflow temperature30
Maximum voltage gain8.24
Minimum voltage gain7.76
width6.35 mm
Base Number Matches1
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
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).
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.
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.
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).
Features
15 kV/µs Common-Mode Rejection at V
CM
= 1000 V
Compact, Auto-Insertable Standard 8-pin DIP Package
0.00025 V/V/°C Gain Drift vs. Temperature
0.3 mV Input Offset Voltage
100 kHz Bandwidth
0.004% Nonlinearity
Worldwide Safety Approval: UL 1577 (3750 Vrms/1 min.)
and CSA, IEC/EN/DIN EN 60747-5-2
• Advanced Sigma-Delta (Σ−∆) A/D Converter Technol-
ogy
• Fully Differential Circuit Topology
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
Functional Diagram
V
DD1
V
IN+
V
IN-
I
DD1
1
2
3
I
DD2
8
V
DD2
7
V
OUT+
+
-
+
-
6
V
OUT-
5
GND2
GND1
4
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.

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