MAX6043CAUT25

Overview

The MAX6043CAUT25 is a precision voltage reference IC from the MAX6043 series, manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed output voltage of 2.5V with an initial accuracy of 0.05% and a maximum temperature coefficient of 15ppm/°C. The device operates from a supply voltage range of +4.5V to +40V and supports a maximum load current of 10mA. It features low noise characteristics, including 4µVP-P typical noise at 2.5V output, and is stable with capacitive loads up to 100µF without requiring external stabilization capacitors. The component is housed in a compact SOT-23-6 package and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Delivers high-precision fixed output voltages with tight initial accuracy and low temperature drift for stable performance across varying thermal conditions.
• Operates efficiently over a wide input supply voltage range while maintaining stability with significant capacitive loads without additional components.
• Incorporates short-circuit protection and proprietary curvature-correction circuitry to ensure reliable operation in demanding environments.

Applications

• High-resolution analog-to-digital converter (ADC) reference sources
• Digital-to-analog converter (DAC) voltage references
• Precision measurement instrumentation systems

Procurement Notes

Verify the specific suffix 'CAUT25' against official manufacturer documentation to confirm exact electrical tolerances and temperature grades. Confirm availability status as distribution channels may list obsolete or limited-stock items. Ensure the ordering part number matches the required output voltage and package type precisely before procurement.

Selection Notes

Select this component when a fixed 2.5V reference is required with high accuracy and wide input voltage capability. Consider the SOT-23-6 package size constraints and the need for stability with capacitive loads. Evaluate if the 15ppm/°C temperature coefficient meets the system's thermal stability requirements compared to other series options.

Part Context

The MAX6043 series comprises precision high-voltage voltage references designed for space-constrained applications. These devices utilize laser-trimmed thin-film resistors and curvature-correction circuits to achieve superior performance. The family offers multiple fixed output voltages, including 2.5V, 3.3V, 4.096V, 5.0V, and 10V, all packaged in the tiny SOT-23 form factor.

Replacement Considerations

Direct substitutes include other MAX6043 variants with different output voltages such as MAX6043AAUT33 or MAX6043AAUT10, provided the voltage level matches the application requirement. Verify pinout compatibility and thermal specifications when considering alternative manufacturers' precision references.