MAX9004EUB+T

Overview

The MAX9004EUB+T is a low-power, high-speed single-supply integrated circuit combining an operational amplifier, a comparator, and a precision voltage reference. It operates from +2.5V to +5.5V supplies with typical quiescent current of 410µA. The op amp offers 8MHz gain-bandwidth product and rail-to-rail outputs. The comparator features 185ns propagation delay and internal hysteresis. An internal 1.230V reference provides ±1% accuracy. The device includes shutdown mode reducing current to 2µA and is housed in a 10-pin µMAX package.

Feature Summary

• Combines high-speed op amp, fast comparator, and precision reference in compact package
• Features shutdown mode for ultra-low power consumption in portable applications
• Provides rail-to-rail input and output swing for maximum dynamic range
• Includes internal comparator hysteresis for noise immunity

Applications

• Single-supply zero-drift photodiode preamplifiers
• Crossing detectors and sensor signal detection circuits
• Smart card readers and infrared receivers
• Bar-code readers for remote control systems
• Keyless entry security sensors

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to ensure correct package type and temperature rating. Confirm availability status through authorized distribution channels as supply conditions may vary. Ensure compatibility with existing design specifications regarding pinout and electrical characteristics before integration.

Selection Notes

Select this component when space-constrained designs require combined amplification, comparison, and reference functions. Choose the MAX9004 variant specifically for its decompensated op amp stability at gains of 10V/V or greater. Consider the shutdown capability if battery life extension is critical for the target application environment.

Part Context

This part belongs to the MAX9000 family of mixed-signal ICs designed for single-supply operation. The family integrates analog signal processing components to reduce board space and component count. The MAX9004 specifically targets applications requiring higher speed amplification compared to unity-gain stable variants within the same series.

Replacement Considerations

Consult official manufacturer substitution guides for verified alternative part numbers. Ensure any replacement maintains identical pin configurations and electrical performance parameters. Verify that functional equivalents support the required shutdown modes and reference accuracies specified in the original design.

FAQ

What is the gain stability requirement for the MAX9004 operational amplifier?

The MAX9004 op amp is decompensated and requires a closed-loop gain of 10V/V or greater for stability.

How does the MAX9004 achieve low power consumption during idle states?

It features a shutdown mode that reduces supply current to 2µA and places outputs in a high-impedance state.

What is the function of the internal comparator hysteresis in this device?

The built-in ±2mV hysteresis provides noise immunity and prevents output oscillations caused by slow-moving input signals.