• HCPL A7800 Isolation Amplifier

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HCPL A7800 Isolation Amplifier

  • Stock: 5
  • SKU: 2981 | DAE692
  • Rs. 233.64 (inc GST)
    Rs.198.00 + GST

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HCPL 7800A, A7800 Isolation Amplifier

HCPL A7800 Isolation Amplifier for current sensing in electronic motor Drives.

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 proportional 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-insertable, industry standard 8-pin DIP package that meets worldwide regulatory safety standards.

We have various types of Optocoupler IC's. Check our complete collection of Optocouplers & Optoisolator IC.

If you are in Nashik you can buy this Electronic Component at our local shop at New CBS, Nashik or you can place order online and get it delivered at your doorstep anywhere in India.

Features of HCPL A7800 Isolation Amplifier

  • 15 kV/µs Common-Mode Rejection at VCM = 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 Technology
  • Fully Differential Circuit Topology

                              Applications of HCPL A7800 Isolation Amplifier

                              • 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

                              Related Link

                              Package Includes

                              1 x HCPL A7800 Isolation Amplifier

                              Extra Information
                              Country of Origin China
                              Imported By ElectroSource Private Limited

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