LT1671CMS8#PBF

Overview

The LT1671CMS8#PBF is a low-power, single-supply comparator featuring complementary outputs and an internal latch. It operates from a single 5V or dual ±5V supply with input common mode range extending to the negative rail. Key electrical parameters include a propagation delay of 60ns at 20mV overdrive, an input offset voltage of 0.8mV typical, and positive supply current of 450µA. The device provides TTL-compatible outputs and remains stable for slow input transitions without requiring a minimum slew rate.

Feature Summary

• Complementary outputs designed for direct interface with TTL or CMOS logic
• Internal latch capability for retaining data at the outputs
• Input common mode range extends down to the negative supply rail
• Stable operation with slow input transitions without minimum slew rate requirement

Applications

• High speed A/D converters
• Zero-crossing detectors
• Current sense for switching regulators
• Fast pulse height/width discriminators
• Line receivers

Procurement Notes

Verify the specific suffix CMS8 corresponds to the MSOP-8 package and commercial temperature grade when ordering. Confirm that the #PBF designation indicates lead-free compliance and RoHS adherence as per manufacturer standards. Ensure the procurement channel sources directly from Analog Devices or authorized distributors to guarantee component authenticity and traceability.

Selection Notes

Select this component for applications requiring ground-sensing inputs and low power consumption in high-speed comparison tasks. The internal latch feature is advantageous for data retention needs. Consider the 60ns propagation delay and 0.8mV offset voltage for precision requirements. Verify that the single 5V or dual supply configuration matches the system design constraints.

Part Context

This part belongs to the LT1671 series of comparators, which are characterized by low power and fast response times. It shares pin compatibility with related models such as the LT1394, LT1016, and LT1116. The series is designed for improved stability across a wide range of operating conditions, making it suitable for various analog-to-digital and signal processing interfaces.

Replacement Considerations

LT1394CMS8#PBF

FAQ

Does the LT1671 require a minimum input slew rate for stable operation?

No, unlike other fast comparators, the LT1671 remains stable even for slow transitions through the active region, eliminating the need to specify a minimum input slew rate.

How does the LATCH pin function on the LT1671?

When the LATCH pin is held high, the outputs remain in a latched condition, independent of the current state of the inputs, allowing for data retention.