LT1021BCN8-7#PBF

Voltage Reference Overview

The LT1021BCN8-7#PBF is a precision shunt voltage reference manufactured by Analog Devices Inc. It provides a nominal output voltage of 7 V with a maximum tolerance of 7.05 V. The device operates within an input voltage range up to 40 V and draws a typical supply current of 750 uA, with a maximum of 1.5 mA. It supports a maximum shunt current of 10 mA and requires a minimum operating current of 1.2 mA. The temperature coefficient is specified at 2 PPM/C. It functions in an industrial temperature range from 0 C to +70 C and 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
• Reference output capable of both sourcing and sinking up to 10 mA

Voltage Reference Applications

• Strain gauge conditioners
• Ultra-linear platinum temperature sensors
• High load current handling circuits
• Precision analog-to-digital converter references

Voltage Reference Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and RoHS status before procurement. Confirm the BC grade accuracy meets design requirements. Check for obsolescence notices or PCNs regarding packaging changes. Ensure the 8-PDIP through-hole package fits the target PCB footprint. Validate that the 7V output aligns with system voltage needs.

Voltage Reference Selection Notes

Select this component when a stable 7V reference is required with low drift. Consider the 2 PPM/C temperature coefficient for thermal environments. Evaluate the 10mA source/sink capability against load demands. Compare against other LT1021 variants if different voltages or grades are needed. Ensure the 0C to +70C operating range suits the application environment.

Voltage Reference Part Context

This part belongs to the LT1021 series of precision voltage references known for buried zener technology. It offers superior stability compared to standard bandgap references. The series includes various output voltages and accuracy grades. It is widely used in instrumentation and data acquisition systems requiring high reliability.

Voltage Reference Replacement Considerations

LT1021DCN8-7#PBF: Higher accuracy grade (DC) with same 7V output. LT1021CCN8-7#PBF: Lower accuracy grade (CC) with same 7V output. LT1021BCN8-5#PBF: Same grade but 5V output. LT1021BCN8-10#PBF: Same grade but 10V output.