MAX6177BASA+

Overview

The MAX6177BASA+ is a high-precision voltage reference providing a fixed +3.3V output with ±0.1% initial accuracy and a maximum temperature coefficient of 3ppm/°C. It accepts input voltages from (VOUT + 2V) up to +40V, drawing a typical quiescent supply current of 320μA. The device sources up to 30mA and sinks up to 2mA of load current. It features a TEMP pin for die temperature sensing and a TRIM pin for fine output adjustment. Stability is maintained without external capacitors, supporting loads up to 100μF.

Feature Summary

• Proprietary curvature-correction circuit and laser-trimmed thin-film resistors ensure low noise and high precision.
• Integrated linear temperature transducer output proportional to die temperature for sensing applications.
• Short-circuit protection limits output current when shorted to ground or input.
• Stable operation without requiring an output bypass capacitor.

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 package type and RoHS compliance status. Ensure the selected variant matches the required initial accuracy grade and operating temperature range specifications for the target application environment.

Selection Notes

Select this component for designs requiring a stable 3.3V reference with minimal temperature drift. Consider the integrated temperature sensor if on-die monitoring is needed. Verify that the input voltage range accommodates the system supply variations and that the load current requirements do not exceed the sourcing or sinking limits.

Part Context

This part belongs to the MAX6173–MAX6177 family of high-precision voltage references. All members share identical architecture, including the curvature-correction circuit and thermal characteristics, differing only in their factory-preset output voltage levels ranging from +2.5V to +10V.

Replacement Considerations

Other members of the MAX6173–MAX6177 series are functionally compatible but provide different preset output voltages. Direct substitution requires matching the required reference voltage level alongside the shared electrical characteristics and package constraints.

FAQ

Does the MAX6177BASA+ 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 proportional to the die temperature, making the device suitable for temperature-sensing applications.

How can the output voltage be adjusted?

The output voltage can be finely trimmed using the TRIM pin by connecting a resistive divider network between OUT, TRIM, and GND.