HCPL-7520

Voltage - Input Offset:	600µV
Base Part Number:	HCPL-7520
Supplier Device Package:	8-DIP
Package / Case:	8-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 85°C (TA)
Voltage - Supply, Single/Dual (±):	4.5 V ~ 5.5 V
Current - Output / Channel:	16mA
Current - Supply:	11.7mA
Series:	--
Current - Input Bias:	600nA
-3db Bandwidth:	100kHz
Slew Rate:	--
Output Type:	--
Number of Circuits:	1
Amplifier Type:	Current Sense
Part Status:	Active
Packaging:	Tube

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Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

The HCPL-7520 is an optically coupled direct current amplifier that is specifically designed for use in general-purpose applications. It is a high-output current, low-power amplifier that is ideal for amplifying very low-level signals for use in voltage-to-current and current-to-voltage conversions. The HCPL-7520 is capable of providing a wide range of output current from 0 to 10mA, and it has a wide range of input current from 10 micro amps to 1mA.

Application Field

The HCPL-7520 can be used in a variety of applications such as temperature and pressure sensing, current sensing, and position/velocity sensing. It is also ideal for applications where long leads are required or when AC line isolation is required. It can also be used in medical, telecommunication, and instrumentation applications.

Working Principle

The working principle of the HCPL-7520 is based on optically coupled direct current amplifiers. The inputs and the output of the device are isolated from each other, which allows for easy connection of the device to the power supply.The device operates in two main stages: the input stage and the output stage. In the input stage, the input current is converted to a voltage signal, which is then amplified and inverted by the operational amplifier. In the output stage, the amplified and inverted voltage is converted to a current signal and amplified to the output current level.The output current is determined by the ratio of the input current to the output current, which is set by the resistors connected to the transistor base. This ratio can be adjusted by changing the resistance values of the resistors.The HCPL-7520 is designed to provide maximum output current in a range of 0 to 10mA. The device is also designed to provide a low input current to maintain accuracy and low distortion as well as a high noise level. The device provides a gain of approximately 1.5mA/V.

Conclusion

In conclusion, the HCPL-7520 is a versatile optically coupled direct current amplifier designed for use in general-purpose applications. It has a wide range of input and output currents and a gain of 1.5mA/V. It is ideal for use in temperature and pressure sensing, current sensing, and position and velocity sensing applications. The device can also be used in medical and instrumentation applications where AC line isolation is required.

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