LTC1145CN

Overview

The LTC1145CN is a digital isolator manufactured by Analog Devices Inc. It provides high-speed data transmission across isolation barriers with a rated isolation voltage of 3000Vrms. The device features a single channel capable of operating at frequencies up to 200 kHz, with a common-mode transient immunity (CMTI) of 200 kV/µs. It is housed in an 18-pin DIP package and supports both 2.5kV and 3kV isolation ratings depending on specific configuration or standard.

Feature Summary

• Provides secure digital data transfer through isolation barriers
• Supports high common-mode transient immunity for noise rejection
• Offers flexible isolation voltage ratings for diverse safety standards

Applications

• Industrial communication interfaces requiring galvanic isolation
• Medical equipment signal isolation
• Power electronics control circuits

Procurement Notes

Verify current availability status as the component may be obsolete or subject to limited supply. Confirm that the 18-DIP package matches your PCB footprint requirements. Ensure the 3000Vrms isolation rating meets your system's safety certification needs. Check for any alternative lead times if immediate procurement is required.

Selection Notes

Select this component when a single-channel digital isolator with robust CMTI is needed. The 18-pin DIP format suits through-hole assembly processes. Consider the 200 kHz data rate limit for application compatibility. Verify that the 3kV isolation barrier satisfies regulatory compliance for the intended environment.

Part Context

This part belongs to the LTC1145 series of digital isolators from Analog Devices. It is designed to replace optocouplers in many applications, offering faster switching speeds and better reliability. The series focuses on providing reliable signal transmission across high-voltage boundaries in compact packages.

Replacement Considerations

Public sources indicate this product is no longer manufactured. Evaluate compatible successors within the Analog Devices portfolio that maintain similar pinouts and isolation specifications.