LT1671IS8#TRPBF

Overview

The LT1671IS8#TRPBF is a low power, single-supply, ground-sensing comparator featuring complementary outputs and an internal latch. It operates from a single 5V supply or dual ±5V supplies with a propagation delay of 60ns at 20mV overdrive. The input common mode range extends to the negative supply rail, allowing for ground sensing applications. Key electrical specifications include a maximum input offset voltage of 4.0mV, a typical input bias current of 280nA, and a positive supply current of 450µA. The device provides active drive in both directions for fast transitions into TTL or CMOS logic loads.

Feature Summary

• Complementary outputs designed for direct interface with TTL or CMOS logic families
• Internal latch capability retains output data when the LATCH pin is held high
• Input common mode range extends down to the negative supply rail for ground sensing
• Stable operation without minimum input slew rate requirements

Applications

• High speed analog-to-digital converters
• Zero-crossing detectors
• Current sense circuits for switching regulators
• Fast pulse height or width discriminators
• Line receivers

Procurement Notes

Verify that the ordering suffix #TRPBF corresponds to the tape and reel packaging format required for automated assembly processes. Confirm that the IS8 variant meets the extended operating temperature range specifications compared to commercial grade parts. Ensure compatibility with the 8-lead MSOP package dimensions during PCB layout planning.

Selection Notes

Select this component for applications requiring ground-sensing inputs on a single supply rail. The internal latch feature simplifies data retention in sampling circuits. Consider the 60ns propagation delay and 450µA supply current for power-speed trade-offs. Verify that the 4mA output drive capability is sufficient for the connected logic load impedance.

Part Context

This part belongs to the LT1671 family of precision comparators. It shares pinout compatibility with legacy devices such as the LT1394, LT1016, and LT1116. The IS8 designation indicates the industrial temperature range and the specific 8-lead MSOP plastic surface mount package configuration.

Replacement Considerations

LT1671IS8#PBF