LT1021BCN8-5#PBF

Voltage Reference Overview

The LT1021BCN8-5#PBF is a precision shunt voltage reference from Analog Devices, housed in an 8-pin PDIP package. It provides a fixed output of 5 V with an initial accuracy of 0.05% and a temperature coefficient of 2 PPM/C. The device operates within a supply voltage range up to 40 V and draws a maximum supply current of 1.5 mA. It supports both sourcing and sinking currents up to 10 mA at the reference output. The component functions reliably across an operating temperature range of 0°C to +70°C.

Voltage Reference Feature Summary

• Ultra-low drift and noise characteristics ensure high stability
• Extremely good long-term stability for precision applications
• Almost total immunity to input voltage variations
• Reference output capable of sourcing and sinking up to 10 mA

Voltage Reference Applications

• Ultraprecise current sources
• Precision DAC voltage references
• Strain gauge conditioners
• Handling higher load currents

Voltage Reference Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and tube packaging when ordering. Confirm the BC grade accuracy (0.05%) matches design requirements against other grades like B or C. Check availability status as distribution may vary. Ensure the 8-pin PDIP through-hole package fits the target PCB layout constraints before finalizing procurement.

Voltage Reference Selection Notes

Select this component for designs requiring a stable 5 V reference with minimal drift over time and temperature. The shunt topology suits applications where the reference must handle varying load conditions by sourcing or sinking current. Consider the 0.05% initial accuracy and 2 PPM/C temperature coefficient for high-precision analog signal chains. Verify that the 40 V maximum input voltage accommodates the system's supply rails.

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 LT1021 family offers exceptional long-term stability and low noise, making it suitable for demanding instrumentation. The BCN8-5 variant specifically denotes the 5 V output version in the commercial temperature grade packaged in a standard DIP format.

Voltage Reference Replacement Considerations

LT1021DCN8-5

Voltage Reference FAQ

Can the LT1021BCN8-5#PBF source and sink current?

Yes, the reference output can both source and sink up to 10 mA.

What is the temperature coefficient of this voltage reference?

The temperature coefficient is 2 PPM/C.