LT1021BCN8-10#PBF

Voltage Reference Overview

The LT1021BCN8-10#PBF is a precision shunt voltage reference manufactured by Analog Devices Inc. It provides a fixed output voltage of 10 V with an initial accuracy of ±0.05%. The device operates within a supply voltage range of 11.5 V to 40 V and draws a maximum supply current of 2 mA. It supports a load current capability of up to 10 mA for both sourcing and sinking. The component features a temperature coefficient of 5 ppm/°C and exhibits low noise characteristics, specifically 3 µVp-p in the 0.1 Hz to 10 Hz frequency band. It is housed in an 8-pin PDIP package and functions reliably across a temperature range of 0°C to +70°C.

Voltage Reference Feature Summary

• Ultra-low drift and noise performance ensures high signal integrity
• Extremely good long-term stability maintains calibration over time
• Total immunity to input voltage variations prevents regulation errors

Voltage Reference Applications

• High-load current voltage reference circuits
• Ultra-linear platinum temperature sensors
• Ultraprecise current sources

Voltage Reference Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and RoHS adherence. Confirm the BC grade corresponds to the specified 5 ppm/°C temperature coefficient and 0.05% initial accuracy. Ensure the PDIP-8 package matches the target PCB footprint. Validate that the operating temperature range meets the environmental requirements of the final assembly.

Voltage Reference Selection Notes

Select this component when a stable 10 V reference is required with minimal thermal drift. The shunt topology allows for simple circuit implementation without external feedback loops. Consider the 10 mA output current capability for driving moderate loads directly. The through-hole PDIP package facilitates prototyping and manual assembly processes.

Voltage Reference Part Context

This part belongs to the LT1021 series of buried zener voltage references known for superior stability compared to standard bandgap regulators. The LT1021 family offers various output voltages and grades, with the 'B' indicating tighter tolerance specifications. The CN8 designation specifies the commercial temperature range and PDIP-8 packaging format used in industrial instrumentation.

Voltage Reference Replacement Considerations

LT1021CCN8-10#PBF: Lower grade version with higher temperature coefficient (20 ppm/°C). LT1021BCN8-5: Same grade but 5 V output. LT1021BMH-5: Higher grade (M) with 5 V output in TO-5 package.