MAX840ISA+

Overview

The MAX840ISA+ is a low-noise, regulated charge pump voltage regulator designed to generate a stable -2V output. It operates from an input voltage range of 2.5V to 10V and is housed in an 8-SOIC package. This component is specifically engineered for GaAsFET bias applications, providing precise negative voltage regulation with minimal ripple.

Feature Summary

• Generates a regulated -2V output suitable for GaAsFET biasing
• Operates within a wide input voltage range of 2.5V to 10V
• Designed for low-noise performance in sensitive analog circuits

Applications

• GaAsFET bias supply generation
• Mobile transmitter power management
• Low-noise analog circuit regulation

Procurement Notes

Verify the obsolete status of this component through official Analog Devices channels before procurement planning. Confirm availability of alternative packages or successor devices if current stock is insufficient. Ensure compliance with RoHS3 specifications as indicated in the datasheet.

Selection Notes

Select this part when a stable -2V rail is required for GaAsFET applications. Consider the 8-SOIC package constraints and thermal requirements. Verify that the input voltage range aligns with the system's power supply architecture.

Part Context

The MAX840 series includes variants like the MAX843 and MAX844, all serving as charge pump regulators. The ISA+ suffix indicates a specific temperature grade and lead-free packaging compliant with environmental standards. These parts are often used in communication equipment requiring precise negative bias voltages.

Replacement Considerations

Check for direct pin-compatible replacements within the MAX84x family. Consult Analog Devices for recommended upgrades due to the product's end-of-life status.