MAX9100ESA+

Overview

The MAX9100ESA+ is a single-channel analog comparator from the MAX9100/MAX9101 family, manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single supply voltage ranging from 1.0V to 5.5V with a typical quiescent current of 5µA at 1.0V and up to 8µA at 5.5V. The device features a push-pull CMOS output stage capable of rail-to-rail swing, sourcing and sinking currents up to 5mA. Propagation delay is typically less than 4µs (max 4.5µs). Input offset voltage is ±10mV typical, with an input common-mode range extending from ground to VCC-0.2V. It is housed in an 8-pin SO package and supports an operating temperature range of -40°C to +85°C.

Feature Summary

• Ultra-low voltage operation optimized for single-cell battery-powered systems
• Push-pull CMOS output stage providing rail-to-rail output swing
• Wide input common-mode range including the negative rail
• No output phase reversal for overdriven inputs

Applications

• Single-cell systems
• Battery-powered instrumentation
• Portable electronic equipment
• Logic-level translation between different voltage domains

Procurement Notes

Verify the specific suffix 'ESA+' indicates the lead-free/RoHS-compliant version in the 8-pin SO package. Confirm the manufacturer part number matches exactly as MAX9100ESA+. Check for availability status as distribution may vary. Ensure the ordering code aligns with the required packaging format if applicable.

Selection Notes

Select this component when low quiescent current and ultra-low voltage operation are critical. The push-pull output is suitable for driving loads directly without external pull-up resistors, unlike the open-drain MAX9101 variant. Consider the propagation delay and input offset voltage specifications against system timing requirements.

Part Context

This part belongs to the MAX9100/MAX9101 micropower comparator series designed for portable applications. It shares electrical characteristics with the MAX9101 but differs in output topology. The MAX9100 provides active drive capability, whereas the MAX9101 uses an open-drain output for mixed-voltage interfacing. Both share the same core performance metrics regarding speed and power consumption.

Replacement Considerations

The MAX9101ESA+ serves as a functional alternative if an open-drain output is preferred for wired-OR configurations or mixed-voltage logic levels. Verify that the output drive requirements can be met by the open-drain configuration with an appropriate external pull-up resistor.