MAX983CSA

Comparators Overview

The MAX983CSA is a dual ultra-low-power analog comparator featuring an internal 1.182V ±2% voltage reference and programmable hysteresis. It operates from a single 2.5V to 11V supply or ±1.25V to ±5.5V dual supplies, drawing less than 4µA quiescent current. The device provides open-drain outputs with a separate ground pin for level translation and includes a 12µs propagation delay at 10mV overdrive.

Comparators Feature Summary

• Ultra-low power consumption with less than 4µA supply current
• Integrated 1.182V precision bandgap voltage reference
• Programmable hysteresis via dedicated HYST pin
• Open-drain outputs with separate GND pin for level shifting

Comparators Applications

• Battery-powered threshold detectors
• Window comparators for undervoltage/overvoltage detection
• Level translators between bipolar and single-ended signals
• Oscillator circuits requiring low power

Comparators Procurement Notes

Verify the specific suffix 'CSA' corresponds to the commercial temperature range (0°C to +70°C) and SOIC-8 package. Confirm RoHS compliance status as indicated in official documentation. Ensure design-in compatibility with existing board layouts due to the specific pinout configuration of the dual comparator variant.

Comparators Selection Notes

Select this component when low quiescent current is critical for battery life. The integrated reference simplifies circuit design by eliminating external components. Verify that the open-drain output architecture aligns with the system's pull-up requirements and logic levels. Consider the 12µs response time against application speed needs.

Comparators Part Context

Part of the MAX971–MAX984 family of micropower comparators. This series offers various combinations of single, dual, and quad comparators with or without internal references. The MAX983 specifically integrates two comparators with the 2% accuracy reference and hysteresis control.

Comparators Replacement Considerations

Direct substitutes include MAX973CSA (1% reference accuracy) and MAX982CSA (different pinout/configuration). Cross-reference with MAX933 series for complementary output stages if required.