MAX9002ESA+T

Overview

The MAX9002ESA+T is a low-power, high-speed single-supply operational amplifier from the MAX9000 family. It operates within a voltage range of +2.5V to +5.5V and draws a typical quiescent current of 340µA. The device features a unity-gain stable op-amp with a 1.25MHz gain-bandwidth product and a 0.85V/µs slew rate. It includes a fast comparator with 185ns propagation delay and ±2mV hysteresis. The unit is housed in an 8-pin SO package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Combines a high-speed op-amp, a fast comparator, and precision reference options in a space-saving package
• Operates from a single +2.5V to +5.5V supply with ultra-low power consumption
• Features rail-to-rail outputs for both the amplifier and comparator stages
• Includes internal comparator hysteresis to prevent oscillations during slow input transitions

Applications

• Single-supply zero-drift photodiode preamplifiers
• Crossing detectors and smart card readers
• Infrared receivers and bar-code readers for remote controls
• Keyless entry systems and sensor signal detection

Procurement Notes

Verify the specific suffix and packaging configuration against the manufacturer's latest documentation before ordering. Confirm that the component meets all required environmental and electrical specifications for the intended application environment.

Selection Notes

Select this part when a combined solution of an amplifier and comparator is needed without an internal reference. Ensure the design utilizes the unity-gain stable architecture suitable for gains of one or higher. Verify that the 340µA supply current aligns with the system's power budget constraints.

Part Context

This component belongs to the MAX9000 series, which integrates multiple analog functions into a single integrated circuit. The series offers various configurations regarding gain stability and reference inclusion. The MAX9002 specifically excludes the internal voltage reference found in other variants of the family.

Replacement Considerations

Consult official manufacturer substitution guides for verified alternative part numbers. Ensure any replacement maintains compatibility with the 8-pin SO footprint and matches the electrical performance requirements of the original design.

FAQ

Does the MAX9002 include an internal precision voltage reference?

No, the MAX9002 does not feature an internal reference. The inverting input of the comparator is available externally for connection to an external reference source.

What is the gain stability characteristic of the operational amplifier in this device?

The operational amplifier in the MAX9002 is unity-gain stable with a gain-bandwidth product of 1.25MHz.