LT1021DCN8-5#PBF

Voltage Reference Overview

The LT1021DCN8-5#PBF is a precision shunt voltage reference from Analog Devices, housed in an 8-pin SOIC surface-mount package. It provides a fixed 5 V output with an initial accuracy of 0.05% and a temperature coefficient of 3 PPM/C. The device operates within a supply voltage range up to 40 V and draws a typical working current of 800 uA, with a maximum power supply current of 1.5 mA. It supports a maximum shunt current of 10 mA and functions reliably across a temperature range of 0°C to +70°C.

Voltage Reference Feature Summary

• Delivers ultra-low drift and noise characteristics for high-precision applications
• Exhibits extremely good long-term stability independent of input voltage variations
• Capable of sourcing and sinking up to 10 mA of reference output current

Voltage Reference Applications

• Strain gauge conditioners
• Ultraprecise current sources
• Negative series voltage references

Voltage Reference Procurement Notes

Verify the specific suffix DCN8 against the required package type (SOIC-8) and tolerance grade. Confirm RoHS compliance status via the manufacturer datasheet. Check for restricted distribution availability in your region as indicated by distributor listings. Ensure the operating temperature range meets system requirements.

Voltage Reference Selection Notes

Select this component when a stable 5 V reference is needed in a compact surface-mount form factor. The low temperature coefficient ensures minimal drift over thermal changes. Verify that the 10 mA sink/source capability matches the load requirements. Consider the 0.05% initial accuracy for critical measurement circuits.

Voltage Reference Part Context

This part belongs to the LT1021 series of buried zener voltage references known for superior performance compared to standard bandgap references. The DCN8 designation indicates an 8-pin PDIP or SOIC variant depending on the specific sub-model, here specified as SOIC-8. It is designed for applications demanding high precision and stability.

Voltage Reference Replacement Considerations

LT1021CCN8-5#PBF: Same electrical specifications but in a PDIP-8 through-hole package.