HCPL-7840 A7840 photoelectric coupler

The HCPL-7840, also known as the A7840, is a precision isolation amplifier that utilizes optical coupling technology to provide electrical isolation between its input and output. This photoelectric coupler is designed for applications requiring accurate measurement and high voltage isolation, such as motor control, industrial process control, and power monitoring systems. The HCPL-7840 offers excellent linearity, low offset voltage, and high common-mode rejection.

Key Features:

• Precision isolation amplifier
• High voltage isolation: 2500 Vrms
• High common-mode rejection (CMR): 10 kV/μs
• Excellent linearity
• Low offset voltage
• Wide supply voltage range: 4.5V to 5.5V
• Low power consumption
• Compact DIP-8 package

Technical Specifications:

• Isolation Voltage: 2500 Vrms for 1 minute
• Common-Mode Rejection (CMR): 10 kV/μs
• Input Offset Voltage: ±0.5 mV (typical)
• Gain Tolerance: ±1% (typical)
• Supply Voltage: 4.5V to 5.5V
• Output Voltage Swing: 0.5V to 4.5V
• Operating Temperature Range: -40°C to +85°C
• Package: 8-pin DIP

Applications:

• Motor Control: Provides isolation and accurate current sensing in motor control circuits.
• Industrial Process Control: Used in systems requiring precise measurement and high voltage isolation.
• Power Monitoring Systems: Suitable for isolating and monitoring power supply lines.
• Data Acquisition Systems: Ensures signal integrity and isolation in data acquisition applications.
• Medical Equipment: Provides safe electrical isolation in medical monitoring devices.
• Renewable Energy Systems: Used in solar and wind power systems for isolation and measurement.

Datasheet:
For detailed technical information, refer to the HCPL-7840 Datasheet.