MAX6070AAUT12+T

Overview

The MAX6070AAUT12+T is a low-noise, high-precision series voltage reference in a 6-pin SOT23 package. It provides a fixed output of 1.25V with ±0.04% initial accuracy and a maximum temperature drift of 6ppm/°C (A grade). The device operates on a supply voltage range of 2.7V to 5.5V, consuming 130µA to 200µA of quiescent current. It supports ±10mA load current and features an enable pin for shutdown control.

Feature Summary

• Integrated filter input allows connection of a capacitor to reduce high-frequency noise for wideband applications.
• Force-sense output architecture minimizes errors caused by trace resistance between the reference and the load.
• Low dropout voltage enables stable regulation even when the input-to-output differential is minimal.

Applications

• High-accuracy industrial and process control systems
• Precision instrumentation requiring stable references
• High-resolution ADCs and DACs
• Precision current sources

Procurement Notes

Verify the specific suffix '+T' indicates tape-and-reel packaging and confirm RoHS compliance status. Ensure the 'AA' designation matches the required A-grade accuracy specifications. Cross-reference the manufacturer's ordering guide to validate availability and lead times before finalizing procurement plans.

Selection Notes

Select this component when a 1.25V reference is needed with ultra-low noise and high precision. The MAX6070 variant includes a filter pin for noise reduction, whereas the MAX6071 lacks it but offers faster settling times. Consider the SOT23 package size constraints and the requirement for force-sense connections to maintain accuracy.

Part Context

This part belongs to the MAX6070/MAX6071 family of low-noise, high-precision series voltage references manufactured by Analog Devices Inc./Maxim Integrated. The family shares similar electrical characteristics but differs in package options and feature sets, such as the presence of a filter input or ground sense pins.

Replacement Considerations

Direct substitutes within the same family include the MAX6071AAUT12+T, which lacks the filter pin but maintains identical electrical performance. Verify that any replacement matches the 1.25V output, SOT23-6 package, and A-grade accuracy requirements.

FAQ

What is the function of the FILTER pin on the MAX6070?

The FILTER pin allows the connection of a capacitor to ground to bypass high-frequency noise, reducing the output noise density for wideband applications.

How does the MAX6070 handle ground errors?

It uses a force-sense output configuration where OUTS connects to the load ground, minimizing errors caused by voltage drops across PCB traces.