MAX6174AASA+T

Overview

The MAX6174AASA+T is a high-precision voltage reference providing a fixed +4.096V output with ±0.06% initial accuracy and a maximum temperature coefficient of 3ppm/°C. It accepts input voltages from (VOUT + 2V) up to +40V, draws 320μA typical supply current, and sources 30mA or sinks 2mA load current. The device includes a TEMP pin for die temperature sensing and a TRIM pin for fine voltage 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 drift and high precision.
• Integrated linear temperature transducer output proportional to die temperature.
• Capable of sourcing 30mA and sinking 2mA without requiring external output bypass capacitors for stability.
• Short-circuit protected output limits current to 60mA when shorted to ground.

Applications

• High-resolution A/D converters
• D/A converters
• Digital voltmeters
• Automotive systems
• Threshold detectors

Procurement Notes

Verify the specific suffix against the manufacturer's official ordering information to confirm RoHS compliance and packaging type. Ensure the selected variant matches the required initial accuracy grade and operating temperature range specifications for your design.

Selection Notes

Select this component when a stable 4.096V reference is needed alongside integrated temperature sensing capabilities. Consider the wide input voltage range and low quiescent current for power-sensitive designs. Verify that the 30mA source capability meets the load requirements.

Part Context

This part belongs to the MAX6173–MAX6177 family of high-precision voltage references. These devices share common features including band-gap technology, low noise performance, and the inclusion of both TRIM and TEMP outputs within an 8-pin SO package.

Replacement Considerations

Other members of the MAX6173–MAX6177 series offer different preset output voltages such as +2.5V, +3.3V, +5.0V, and +10V while maintaining similar electrical characteristics and pinouts.

FAQ

Does the MAX6174AASA+T require an output capacitor for stability?

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

What is the function of the TEMP pin?

The TEMP pin provides an output voltage that is proportional to the die temperature, making the device suitable for temperature-sensing applications.