ADR4540CRZ

Overview

The ADR4540CRZ is a high-precision, low-power voltage reference from Analog Devices featuring an output of 4.096 V and ±0.02% initial accuracy. It operates within a 3 V to 15 V input range with a maximum quiescent current of 950 μA. The C-grade device provides a temperature coefficient of 1 ppm/°C over the 0°C to +70°C range. It utilizes an innovative core topology for excellent stability and low noise.

Feature Summary

• Ultra-low noise performance utilizing specialized core topology
• High precision with ±0.02% maximum initial output error
• Low dropout capability suitable for portable equipment
• Excellent long-term drift characteristics

Applications

• Precision data acquisition systems
• High resolution data converters
• Industrial instrumentation
• Medical devices

Procurement Notes

Verify the specific grade suffix (C) against project requirements to ensure the operating temperature range matches the application environment. Confirm package availability as distribution status may vary by region. Ensure proper ESD handling procedures are followed during assembly due to device sensitivity.

Selection Notes

Select this component when a stable 4.096 V reference is required in industrial environments. The C-grade specification limits operation to 0°C to +70°C; consider B or A grades if extended temperature ranges are necessary. Verify that the input voltage remains within the specified 3 V to 15 V window for optimal regulation.

Part Context

This part belongs to the ADR4540 series of ultralow noise voltage references. It shares architectural similarities with the ADR4520, ADR4525, ADR4530, ADR4533, and ADR4550 models. All variants utilize the same 8-lead SOIC package and offer varying output voltages and temperature coefficients.

Replacement Considerations

ADR4540BRZ offers the same electrical specifications but supports an extended temperature range of -40°C to +125°C.