MAX9092AUA+T

Overview

The MAX9092AUA+T is a dual general-purpose comparator manufactured by Analog Devices Inc. under the Maxim Integrated brand, housed in an 8-pin µMAX package. It operates on a single supply voltage ranging from +1.8V to +5.5V and supports an operating temperature range of -40°C to +125°C. The device features open-drain outputs with a low output saturation voltage of 120mV at 1mA sink current. Propagation delay is typically 100ns, with an input common-mode voltage range that includes ground. Supply current is approximately 65µA per channel at +5.0V.

Feature Summary

• Dual-channel architecture designed for low-voltage portable applications
• Open-drain output configuration providing flexibility in logic interfacing
• Input common-mode voltage range extends to include ground potential
• No phase reversal occurs even when inputs are overdriven beyond supply rails

Applications

• Mobile communications equipment
• Notebooks and personal digital assistants (PDAs)
• Battery-powered electronic devices
• General-purpose low-voltage signal processing

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging upon ordering. Confirm the 'A' designation aligns with the required -40°C to +125°C automotive-grade temperature range. Ensure the µMAX-8 footprint matches the target PCB design constraints. Cross-reference the manufacturer's latest datasheet revision to confirm pinout compatibility with legacy components.

Selection Notes

Select this component for designs requiring rail-to-rail input capability near ground without external biasing. The open-drain output necessitates an external pull-up resistor; verify the load requirements against the 16mA maximum sink current specification. Consider the 7mV maximum input offset voltage for precision threshold detection. Evaluate thermal dissipation limits if operating continuously at high ambient temperatures within the specified range.

Part Context

This part belongs to the MAX909x family of general-purpose comparators, which also includes quad-channel variants (MAX9094/MAX9095). The family serves as a pin-compatible replacement for older LMX393/LMX339 series parts. Unlike the MAX9093 and MAX9095 models, the MAX9092 does not include internal hysteresis, requiring external feedback networks if noise immunity is critical for the application.

Replacement Considerations

The MAX9092AUA+T is documented as a direct pin-for-pin compatible replacement for the LMX393H in the 8-pin SOT23/µMAX form factor. Verify that the target system can accommodate the specific electrical characteristics, such as the 120mV output saturation voltage and 100ns propagation delay, which may differ from legacy discrete comparator solutions.