MAX6070BAUT25+T

Overview

The MAX6070BAUT25+T is a low-noise, high-precision series voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed output voltage of 2.5V with an initial accuracy of ±0.08% and a maximum temperature drift of 8ppm/°C. The device operates within an input voltage range of 2.8V to 5.5V and consumes a typical supply current of 150µA. It supports sourcing and sinking up to 10mA of load current and features a shutdown mode with a supply current of 6µA. The component is housed in a compact 6-pin SOT-23 package and is specified for operation over the extended industrial temperature range of -40°C to +125°C.

Feature Summary

• Provides stable performance over temperature and time with high initial accuracy and low temperature drift.
• Features very low noise characteristics suitable for precision applications.
• Includes an enable pin for power management and a filter option on the MAX6070 variant to reduce high-frequency noise.
• Offers remote sensing outputs (OUTS) to compensate for trace resistance.

Applications

• High-Accuracy Industrial and Process Control
• Precision Instrumentation
• High-Resolution ADCs and DACs
• Precision Current Sources

Procurement Notes

Verify the specific suffix 'AUT' indicates automotive-grade qualification and the '+T' denotes tape-and-reel packaging. Confirm RoHS compliance status via the manufacturer's documentation. Ensure the ordering part number matches the required grade (B grade) and output voltage (2.5V). Check for any lead-free or environmental certifications required by your manufacturing standards.

Selection Notes

Select this component when a fixed 2.5V reference with ±0.08% accuracy and 8ppm/°C drift is required. Choose the MAX6070 variant if a filter pin is needed for wideband noise reduction; otherwise, use the MAX6071 for faster settling times. Ensure the input voltage remains above the dropout voltage at the maximum load current. Consider the SOT-23 package size constraints and thermal dissipation requirements for the application environment.

Part Context

This device belongs to the MAX6070/MAX6071 family of low-noise, high-precision series voltage references. The family offers various output voltages including 1.25V, 1.8V, 2.048V, 3.0V, 3.3V, 4.096V, and 5.0V. The B grade provides ±0.08% accuracy, while the A grade offers tighter ±0.04% accuracy. The devices are designed to enhance system accuracy in high-precision industrial applications through low-drift and low-noise specifications.

Replacement Considerations

MAX6070BAUT25+T

FAQ

What is the difference between the MAX6070 and MAX6071 variants?

The MAX6070 includes a FILTER pin that allows connection of a capacitor to reduce high-frequency noise, which increases turn-on and enable settling times. The MAX6071 lacks this pin, offering significantly faster settling times but higher high-frequency noise.

How does the remote sensing feature work?

The device provides separate Force (OUTF) and Sense (OUTS) outputs. By connecting OUTS directly to the load ground, the reference compensates for voltage drops across PCB traces, ensuring accurate voltage delivery to the load.