MAX6165AESA+

Overview

The MAX6165AESA+ is a precision, micropower, low-dropout voltage reference providing a fixed 5.000V output in an 8-pin SO package. It operates within an input voltage range of 5.2V to 12.6V and maintains extended temperature stability from -40°C to +85°C. The device features a maximum initial accuracy of ±2mV and a temperature coefficient of 5ppm/°C (max). It typically draws 100μA of supply current while sourcing up to 5mA or sinking 2mA of load current.

Feature Summary

• Proprietary curvature-correction circuitry combined with laser-trimmed thin-film resistors ensures high precision and low temperature drift.
• Internally compensated design eliminates the need for external compensation capacitors, reducing board space requirements.
• Supply current remains virtually independent of the input voltage, maximizing efficiency in battery-operated systems.
• Capable of sourcing 5mA and sinking 2mA without requiring an external biasing resistor.

Applications

• Analog-to-Digital Converters (ADCs)
• Portable Battery-Powered Systems
• Notebook Computers
• PDAs, GPS, DMMs
• Cellular Phones

Procurement Notes

Verify the specific suffix 'A' indicates the ±2mV initial accuracy and 5ppm/°C temperature coefficient variant. Confirm the 'ESA+' designation corresponds to the 8-pin Small Outline package and lead-free/RoHS compliance status. Ensure the input supply voltage meets the minimum requirement of VOUT + 200mV for proper regulation.

Selection Notes

Select this component when a stable 5V reference is required with minimal quiescent current consumption. The low dropout characteristic allows operation close to the output voltage, making it suitable for single-supply applications. Consider the thermal hysteresis specification if the device undergoes significant temperature cycling during operation.

Part Context

This part belongs to the MAX6161–MAX6168 family of precision voltage references manufactured by Analog Devices / Maxim Integrated. The family shares identical pinouts and general electrical characteristics, differing primarily in their fixed output voltage options ranging from 1.25V to 5V. All variants utilize the same BiCMOS process and offer similar noise and stability profiles.

Replacement Considerations

Other members of the MAX6161–MAX6168 series are pin-compatible but provide different fixed output voltages. Verify that the alternative part number matches the required 5.000V output level before substitution.

FAQ

Does the MAX6165AESA+ require an external capacitor for stability?

No, the devices are internally compensated and do not require an external compensation capacitor for frequency stability.

What is the minimum input voltage required for the MAX6165AESA+?

The minimum input voltage is VOUT + 200mV, which equals 5.2V for the 5.000V output version.

How does the supply current behave relative to the input voltage?

The quiescent supply current is virtually independent of the supply voltage, varying by only 8μA/V maximum across the operating range.