MAX875BCPA

Overview

The MAX875BCPA is a precision voltage reference providing a fixed +5.0V output in an 8-pin SO package. It features a maximum initial accuracy of ±0.06% and a temperature coefficient of 20ppm/°C over the -40°C to +85°C operating range. The device draws a maximum quiescent current of 450µA, sources up to 10mA, and sinks up to 2mA. It operates with a supply voltage range of +4.5V to +18V and includes a TRIM pin for ±6% voltage adjustment and a TEMP pin for temperature sensing.

Feature Summary

• Provides stable +5.0V reference with low drift and high accuracy
• Includes dedicated pins for output voltage trimming and temperature monitoring
• Capable of sourcing 10mA and sinking 2mA load currents
• Operates efficiently with low quiescent current consumption

Applications

• 12-bit ADCs and DACs
• Digital Multimeters
• Portable Data-Acquisition Systems
• Low-Power Test Equipment

Procurement Notes

Verify the specific suffix 'CPA' against official documentation, as the provided datasheet primarily lists 'E' (SOIC) and 'A' (PDIP) variants. Confirm lead-free status and RoHS compliance details directly with the manufacturer or authorized distributors, as standard Maxim parts often carry '+' suffixes for environmental compliance. Ensure the package type matches your PCB footprint requirements before ordering.

Selection Notes

Select this component when a fixed +5.0V precision reference is required with moderate accuracy specifications. It is suitable for applications where the ±0.06% initial accuracy and 20ppm/°C drift are sufficient. Consider the available TRIM functionality if fine-tuning is necessary. Compare against MAX875AESA+ variants if tighter accuracy (±0.04%) and lower drift (7ppm/°C) are needed for higher-precision systems.

Part Context

This part belongs to the MAX873/MAX875/MAX876 family of low-power, low-drift precision voltage references. The MAX875 variant specifically provides a +5.0V output, distinguishing it from the +2.5V MAX873 and +10V MAX876. All members share similar architectures, including curvature-correction circuits and laser-trimmed thin-film resistors for stability.

Replacement Considerations

MAX875AESA+