MAX6175AASA+

Overview

The MAX6175AASA+ is a high-precision series voltage reference providing a fixed +5.0V output with ±0.06% initial accuracy and a maximum temperature coefficient of 3ppm/°C. It accepts input voltages from 7V to 40V, draws 320µA typical supply current, and sources up to 30mA load current. The device includes a linear temperature sensor output proportional to die temperature and a TRIM pin for fine adjustment. It operates over the -40°C to +125°C automotive range in an 8-pin SO package.

Feature Summary

• Proprietary curvature-correction circuit and laser-trimmed thin-film resistors ensure low noise and high precision.
• Integrated linear temperature transducer output provides voltage proportional to die temperature.
• TRIM input allows fine adjustment of the output voltage using a resistive divider network.
• Short-circuit protected output capable of sourcing 30mA or sinking 2mA without external stability capacitors.

Applications

• High-resolution Analog-to-Digital Converters (ADCs)
• Digital-to-Analog Converters (DACs)
• Precision Digital Voltmeters
• Automotive Sensor Interfaces

Procurement Notes

Verify the specific suffix 'AASA+' against the manufacturer's official ordering guide to confirm RoHS compliance and lead-free status. Ensure the input voltage range meets the minimum dropout requirement for the selected load current. Confirm that the thermal management strategy accounts for the specified junction-to-ambient resistance in the SO-8 package.

Selection Notes

Select this component when a fixed 5.0V reference with tight initial accuracy and low drift is required. The integrated temperature sensor eliminates the need for separate sensing components. Verify that the application does not require output voltages other than the preset 5.0V, as trimming is limited to ±6%. Consider the 320µA quiescent current for battery life calculations.

Part Context

Part of the MAX6173–MAX6177 family of high-precision voltage references. Shares identical architecture, pinout, and features across the series, differing only in factory-preset output voltages (+2.5V, +3.3V, +4.096V, +5.0V, +10V). All members offer the same temperature coefficient, noise performance, and short-circuit protection characteristics.

Replacement Considerations

Direct functional substitutes within the same family include MAX6173AASA+, MAX6174AASA+, MAX6176AASA+, and MAX6177AASA+. These parts share the same package and feature set but provide different preset output voltages. Cross-family replacements require verification of pin compatibility and electrical parameter alignment.

FAQ

Does the MAX6175AASA+ require an output capacitor for stability?

No, the device does not require an output bypass capacitor for stability and is stable with capacitive loads up to 100µF.

How is the output voltage trimmed?

The output voltage can be fine-tuned by connecting a resistive divider network between the OUT, TRIM, and GND pins.

What is the function of the TEMP pin?

The TEMP pin provides an output voltage proportional to the die temperature, serving as a linear temperature transducer.