LT1021CCN8-5#PBF

Voltage Reference Overview

The LT1021CCN8-5#PBF is a precision shunt voltage reference manufactured by Analog Devices Inc. It provides a fixed output voltage of 5 V with an initial accuracy of 0.05%. The device operates within a temperature range of 0°C to +70°C and features a low temperature coefficient of 3 PPM/°C. It supports a maximum input voltage of 40 V and can source or sink up to 10 mA of load current while consuming a typical supply current of 800 µA. The component is housed in an 8-pin PDIP package.

Voltage Reference Feature Summary

• Ultra-low drift and noise characteristics for high-precision applications
• Extremely good long-term stability ensuring consistent performance over time
• Almost total immunity to input voltage variations
• Bidirectional current capability allowing the reference output to both source and sink up to 10 mA

Voltage Reference Applications

• Handling higher load currents in precision circuits
• Ultraprecise current sources
• Precision DAC voltage references
• Strain gauge conditioners
• Ultra linear platinum temperature sensors

Voltage Reference Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and tube packaging when sourcing. Confirm the CC grade corresponds to the required 0.05% initial accuracy and 3 PPM/°C temperature coefficient specifications. Ensure the operating environment stays within the 0°C to +70°C commercial temperature range. Check for restricted availability status as distribution may vary by region.

Voltage Reference Selection Notes

Select this component when a stable 5 V reference is needed with minimal drift and noise. The bidirectional 10 mA output capability makes it suitable for driving loads that require both sourcing and sinking current. The PDIP-8 package facilitates through-hole mounting for prototyping or robust industrial designs requiring high reliability.

Voltage Reference Part Context

This part belongs to the LT1021 series of buried zener voltage references known for superior stability compared to standard bandgap references. The LT1021 family offers various output voltages and packages, with the CCN8 variant specifically providing the 5 V output in an 8-pin DIP configuration. It serves as a foundational reference element in analog signal chains requiring high accuracy.

Voltage Reference Replacement Considerations

Direct substitutes include other LT1021 variants such as LT1021DCN8-5 or LT1021BCN8-5, which share the same core architecture but may differ in accuracy grades or temperature ranges. Verify pin compatibility and electrical specifications before substitution.