Broadcom Isolation Amplifier Optocoupler SMD DIP 8-Pin 3.75kV 100kHz

The Broadcom Isolation Amplifier Optocoupler is a single-channel SMD DIP 8-pin device with a 3.75kV isolation rating and a 100kHz bandwidth, designed for precise current sensing and signal isolation in demanding electronic applications. Its core design uses a fully differential circuit topology and Sigma-Delta A/D converter technology.

Applications

The device is designed for electronic motor drives, where reliable measurement is important. It is suited to motor phase and rail current sensing and inverter current sensing, supporting control and protection of motor systems. It also provides signal isolation in switched-mode power supplies (SMPS), general-purpose current sensing and monitoring circuits, and general-purpose analogue signal isolation.

Key Features

• High-speed isolation: Common-mode transient immunity (CMTI) of 15kV/µs at 1000V, for operation in electrically noisy environments.
• Low input offset: Input offset voltage of 0.3mV.
• Low nonlinearity: Nonlinearity of 0.004%.
• Wide bandwidth: 100kHz bandwidth for monitoring and control applications.
• Compact surface-mount package: SMD DIP (Dual In-line Package) format that is auto-insertable, for high-volume PCB assembly.
• Safety certification: UL 1577 certified for 3750 V RMS isolation for 1 minute, and compliant with CSA and IEC/EN/DIN EN 60747-5-2.

Dimensions and Weight

The product measures 3.3 (width) by 1.5 (depth) by 4.3 (height) and weighs 10.584 g.

This isolation amplifier is intended for industrial and power electronic systems where accurate measurement and signal isolation support safety and reliability.