LTC1841CS8#PBF

Overview

The LTC1841CS8#PBF is an ultralow power dual comparator housed in an 8-lead SOIC package. It operates from a single 2V to 11V supply or a dual ±1V to ±5.5V supply, drawing a typical quiescent current of 3.5μA. The device features open-drain outputs capable of sinking greater than 20mA and inputs that extend to the negative supply rail. It includes a built-in 1.182V reference with programmable hysteresis and eliminates cross-conduction current spikes during state transitions.

Feature Summary

• Ultralow quiescent current consumption for battery-powered applications
• Open-drain output stage capable of high sink currents
• Built-in precision voltage reference with bypass capability
• Programmable hysteresis via external resistors

Applications

• Battery-powered system monitoring
• Threshold detectors
• Window comparators
• Oscillator circuits

Procurement Notes

Verify the specific suffix CS8 corresponds to the commercial temperature range (0°C to 70°C) as defined in the ordering information. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure supply voltage limits are respected within the specified operational range to maintain device integrity.

Selection Notes

Select this component when low static power consumption is critical compared to standard comparators. The integrated reference simplifies design by removing external components. Verify input common-mode voltage requirements align with the V– to V+ – 1.3V range. Consider the open-drain output configuration for necessary level shifting or wire-OR logic capabilities.

Part Context

This part belongs to the LTC1841/LTC1842/LTC1843 family of micropower comparators. While the LTC1841 lacks an internal reference, the CS8 variant specifically denotes the commercial grade plastic SOIC package. The family shares architectural similarities regarding input leakage and propagation delay characteristics across different temperature grades.

Replacement Considerations

LTC1841IS8