MAX6070BAUT50+T

Overview

The MAX6070BAUT50+T is a low-noise, high-precision series voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed output voltage of 5.0V with an initial accuracy of ±0.08% at +25°C and a maximum temperature drift of 8ppm/°C. The device operates within an input voltage range of 5.2V to 5.5V and consumes a typical supply current of 150µA. It supports bidirectional load currents up to 10mA and features a shutdown mode with 6µA current consumption. The component is housed in a compact 6-pin SOT-23 package and is specified for operation across 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 a filter option on the MAX6070 variant to lower high-frequency noise for wideband applications.
• Offers low dropout voltage and high ripple rejection capabilities.
• Includes an enable pin for power management and shutdown functionality.

Applications

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

Procurement Notes

Verify the specific grade suffix 'B' corresponds to the required ±0.08% accuracy and 8ppm/°C drift specifications. Confirm that the 5.2V minimum input voltage aligns with the system's available supply rails. Ensure the SOT-23 footprint matches the design layout. Check for AEC-Q100 qualification if automotive compliance is mandatory.

Selection Notes

Select this part when low noise and high precision are critical for system accuracy. The MAX6070 includes a filter pin for reducing wideband noise, whereas the MAX6071 lacks this feature but offers faster settling times. Consider the 5.2V minimum input voltage requirement against the available supply. Evaluate the need for remote sense outputs (OUTS/GNDS) if long trace resistance affects accuracy.

Part Context

This component belongs to the MAX6070/MAX6071 family of low-noise, high-precision series voltage references. The family is designed to enhance system accuracy in demanding environments through ultra-low drift and noise characteristics. Variants cover common voltage levels including 1.25V, 1.8V, 2.5V, 3.3V, and 5.0V, packaged in small form factors like SOT-23 and WLP.

Replacement Considerations

MAX6071BAUT50+T: Identical electrical specifications but lacks the filter pin option.

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, while the MAX6071 does not have this pin and typically offers faster turn-on and enable settling times.

How does the B grade affect the temperature drift specification?

The B grade specifies a maximum temperature drift of 8ppm/°C, compared to 6ppm/°C for the A grade and 20ppm/°C for the D grade.