SHARP PC923 OPIC Photocoupler IC SOP 8

The Sharp PC923 in SOP-8 SMD package is a high-performance OPIC (Optical IC) photocoupler designed for fast, reliable, and noise-immune signal isolation in compact electronic systems. OPIC technology integrates a photodiode and amplifier circuit into a single monolithic chip, enabling significantly faster response and higher stability than conventional phototransistor-based optocouplers.

The PC923 consists of an infrared LED on the input side coupled to a high-sensitivity photodetector IC that produces a clean digital output. This architecture allows the device to support high-speed data transmission, improved linearity, and excellent Common-Mode Transient Immunity (CMTI).

With its SOP-8 surface-mount package, the PC923 is ideal for modern PCB designs that require compact size, automated assembly, and reduced board space while still offering high isolation performance.

Features

• OPIC (Optical IC) technology for high-speed and stable operation
• High-speed digital output with fast propagation delay
• Infrared LED input + integrated photodiode + amplifier output
• High isolation voltage
• Excellent noise immunity and CMTI performance
• Low input current / low power consumption
• Compact SOP-8 SMD package
• Compatible with TTL / CMOS logic levels
• Wide operating temperature range
• Superior CTR stability compared to phototransistor optocouplers

Applications

• High-speed logic signal isolation
• Industrial control and PLC systems
• Microcontroller / DSP / FPGA / SoC isolation
• Communication interfaces (RS-232, RS-485, CAN bus)
• Switching power supplies and feedback circuits
• Motor drive and inverter systems
• Smart meters and energy monitoring units
• Data acquisition systems
• Noise-sensitive analog and digital circuit isolation
• Electronic safety and isolation barriers