MAX44290ANT+

Instrumentation, Op Amps, Buffer Amps Overview

The MAX44290ANT+ is a single-channel operational amplifier in a 6-bump WLP package. It operates from a supply voltage of 1.8V to 5.5V, with support for 1.7V between 0°C and +70°C. Key electrical parameters include a gain-bandwidth product of 15MHz, a slew rate of 7 V/µs, and an input offset voltage of 50 µV maximum at +25°C. The quiescent current is 750 µA, reducing to under 1 µA in shutdown mode. Input bias current is 500 fA, and the input voltage noise density is 12.7 nV/√Hz.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Features rail-to-rail input and output capabilities with extended common-mode range extending beyond supply rails.
• Includes an integrated charge pump to eliminate crossover distortion typically found in CMOS input structures.
• Provides fast power-on autotrim functionality that self-calibrates input offset voltage upon startup.
• Supports active-low shutdown mode to significantly reduce quiescent current while maintaining high-impedance outputs.

Instrumentation, Op Amps, Buffer Amps Applications

• Analog-to-Digital Converter Buffers
• Transimpedance Amplifiers
• Portable Medical Instruments
• General-Purpose Signal Processing

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the component designation matches the specific ordering information provided in official documentation. Confirm the package type corresponds to the 6-bump wafer-level configuration. Ensure environmental compliance requirements align with lead-free specifications. Validate operating temperature ranges against application constraints before procurement.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this device for applications requiring low-voltage operation combined with precision signal conditioning. The low input bias current makes it suitable for interfacing with high-impedance sensors. Consider the compact package size for space-constrained portable designs. Evaluate the shutdown feature if power management during idle states is critical.

Instrumentation, Op Amps, Buffer Amps Part Context

This component belongs to the MAX44290 series of low-power, high-speed operational amplifiers manufactured by Analog Devices. It is designed for portable and industrial equipment where power efficiency and signal integrity are paramount. The series supports various signal-processing functions including filtering and amplification.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Consult official manufacturer documentation for verified substitute part numbers. Cross-reference pin configurations and electrical characteristics carefully when considering alternatives.

Instrumentation, Op Amps, Buffer Amps FAQ

How does the MAX44290 handle crossover distortion?

It utilizes an optimized input stage with an ultra-quiet integrated charge pump that powers the PMOS differential pair, eliminating crossover distortion common in traditional CMOS architectures.

What is the behavior of the inputs and outputs during shutdown?

In shutdown mode, both inputs and outputs enter a high-impedance state, allowing multiple outputs to be multiplexed onto a single line without external buffers.