LT1021DIN8-5#PBF

Voltage Reference Overview

The LT1021DIN8-5#PBF is a precision voltage reference IC manufactured by Analog Devices Inc., featuring a fixed output of 5V. It utilizes a series, shunt, buried Zener architecture to achieve ultra-low drift and noise characteristics. The device operates within an input voltage range of 8V to 40V and draws a supply current of 3.5mA. It provides a maximum output current of 15mA and maintains a tolerance of ±0.1% with a temperature coefficient of 7.5ppm/°C. Noise performance is specified at 3µVp-p (0.1Hz to 10Hz) and 10µVrms (10Hz to 10Hz). It is housed in an 8-SOIC package and functions reliably across a temperature range of 0°C to 70°C.

Voltage Reference Feature Summary

• Ultra-low drift and noise performance for high-precision applications
• Extremely good long-term stability with immunity to input voltage variations
• Capable of sourcing and sinking up to 15mA output current

Voltage Reference Applications

• Voltage reference for ultraprecise current sources
• Precision DAC voltage references
• Strain gauge conditioners
• Two-pole low-pass filtered voltage references

Voltage Reference Procurement Notes

Verify the specific suffix DIN8-5#PBF against the manufacturer's datasheet to confirm the 5V output variant and SOIC-8 package configuration. Ensure compatibility with the required operating temperature range of 0°C to 70°C. Confirm RoHS3 compliance status if environmental regulations apply to the end product. Cross-reference the part number with official Analog Devices documentation to avoid confusion with other LT1021 variants.

Voltage Reference Selection Notes

Select this component when designing circuits requiring superior long-term stability and minimal noise compared to standard bandgap references. The 15mA output capability allows direct driving of moderate loads without additional buffering. Consider the 7.5ppm/°C temperature coefficient for environments with significant thermal fluctuations. The buried Zener technology offers better noise performance than competing series references in similar packages.

Voltage Reference Part Context

The LT1021 series represents Analog Devices' high-performance precision voltage references, known for their exceptional stability and low noise. This specific model belongs to the LT1021 family, which uses buried Zener technology to minimize aging effects and thermal drift. The series is widely recognized in metrology and instrumentation for maintaining accuracy over extended periods and varying environmental conditions.

Voltage Reference Replacement Considerations

LT1021CCN8-5#PBF: Same 5V output but industrial temperature grade (-40°C to 85°C). LT1021DCN8-5#PBF: Same 5V output but commercial temperature grade (0°C to 70°C). LT1021ECS8-5#PBF: Same 5V output but enhanced temperature grade (-55°C to 125°C). Verify package and temperature specifications before substitution.