FOD0738R1

Logic Output Optoisolators Overview

The FOD0738R1 is a dual-channel CMOS optocoupler featuring push-pull outputs and 2500VRMS isolation. It utilizes Optoplanar technology to achieve a minimum common-mode rejection rate of 25kV/µs and a data rate of 15MBd. The device operates within an industrial temperature range of -40°C to +100°C, ensuring reliable performance in noisy environments.

Logic Output Optoisolators Feature Summary

• Patented Optoplanar technology reduces package capacitance by over 30% for enhanced noise immunity
• Push-pull detector design eliminates the need for external pull-up resistors
• High common-mode noise rejection capability ensures signal integrity in harsh conditions

Logic Output Optoisolators Applications

• Industrial control systems requiring high noise immunity
• Profibus and Fieldbus communication networks
• DeviceNet and SDS interface applications
• Microprocessor peripheral I/O isolation

Logic Output Optoisolators Procurement Notes

Verify the manufacturer origin, as Fairchild Semiconductor's semiconductor assets were acquired by onsemi. Confirm that the specific part number corresponds to the original Fairchild production specifications rather than the current onsemi lineup. Ensure the component meets the required industrial temperature ratings and isolation voltage standards for your specific application environment before finalizing procurement.

Logic Output Optoisolators Selection Notes

Select this component when high-speed digital isolation is required alongside robust common-mode noise suppression. The dual-channel configuration offers higher installation density compared to single-channel alternatives. The push-pull output architecture simplifies circuit design by removing the need for external pull-up resistors, thereby reducing power consumption and component count in the system.

Logic Output Optoisolators Part Context

This device belongs to the FOD07X8 series, which includes single-channel variants like the FOD0708. The series was introduced to address noise interference in industrial control applications. It represents a shift from open-collector bipolar transistor solutions to CMOS-based push-pull designs, offering improved bandwidth and lower power requirements for modern industrial networking protocols.

Logic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Note that the FOD073LR1 is listed as a related variant with Darlington outputs, which differs significantly from the push-pull logic output of the FOD0738R1 and is not a direct functional replacement.