MAX6126B28+

Overview

The MAX6126B28+ is a series-mode voltage reference with a fixed output of 2.800V, housed in an 8-pin μMAX package. It provides ±0.1% initial accuracy and operates over a -40°C to +125°C temperature range. The device features a maximum temperature coefficient of 7ppm/°C (TA = -40°C to +85°C) and 12ppm/°C (TA = -40°C to +125°C). It draws a typical quiescent supply current of 380μA and supports up to 10mA sink/source load current.

Feature Summary

• Ultra-low noise architecture producing flicker noise as low as 1.45μVP-P from 0.1Hz to 10Hz
• Curvature-correction circuitry utilizing laser-trimmed thin-film resistors for high stability
• Independent force and sense outputs (OUTF, OUTS, GNDS) enabling remote Kelvin sensing
• Capacitive-load stability maintained across a range of 0.1μF to 10μF

Applications

• High-resolution analog-to-digital and digital-to-analog converters
• Precision current sources requiring stable bias voltages
• High-accuracy industrial and process control systems
• Digital voltmeters and ATE equipment

Procurement Notes

Verify the specific suffix 'B' indicates B-grade accuracy (+/-0.1%) and '28' denotes the 2.800V output. Confirm the 'μMAX' package designation matches the required footprint. Ensure the '+' suffix confirms lead-free/RoHS compliance status before finalizing procurement specifications.

Selection Notes

Select this component when a fixed 2.800V precision reference is required in a compact surface-mount form factor. The B-grade specification suits applications tolerating slightly higher initial accuracy deviations compared to A-grade variants. Verify that the input voltage remains within the specified dropout limits relative to the 2.800V output under all operating conditions.

Part Context

This part belongs to the MAX6126 family of ultra-high-precision, ultra-low-noise series voltage references manufactured by Analog Devices Inc./Maxim Integrated. The family utilizes proprietary low-noise architectures and curvature correction to achieve exceptional performance without excessive supply current consumption.

Replacement Considerations

Cross-reference other MAX6126 variants such as MAX6126A28+ for tighter accuracy or different packages like SOIC if pin-out compatibility allows. Verify that substitute parts maintain the same 2.800V output and μMAX package dimensions.