LT1019ACN8-4.5#PBF

Voltage Reference Overview

The LT1019ACN8-4.5#PBF is a shunt precision voltage reference manufactured by Analog Devices Inc., operating within the LT1019 series. It provides a fixed output voltage of 4.5 V with an initial accuracy of 0.05% and a temperature coefficient of 5 PPM/°C. The device supports a maximum input voltage of 40 V and handles a maximum shunt current of 10 mA, requiring a minimum operating current of 500 uA. It functions across a temperature range of 0°C to +70°C and is housed in a PDIP-8 through-hole package.

Voltage Reference Feature Summary

• Delivers high-precision voltage regulation with 0.05% initial accuracy
• Maintains stable performance with a low 5 PPM/°C temperature coefficient
• Operates reliably within a standard industrial temperature range

Voltage Reference Applications

• Precision analog-to-digital converter (ADC) reference sources
• High-resolution digital-to-analog converter (DAC) references
• Calibration equipment requiring stable voltage standards
• Instrumentation systems demanding low drift performance

Voltage Reference Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to limited supply status. Confirm RoHS compliance and specific lot traceability requirements before procurement. Ensure packaging integrity matches specifications for through-hole mounting. Validate that the AC grade meets strict accuracy needs compared to lower grades.

Voltage Reference Selection Notes

Select this part when 4.5 V output is required with superior accuracy compared to standard grades. The AC grade offers 0.05% tolerance versus 0.2% for CN variants. Choose the PDIP-8 package for through-hole assembly needs. Consider the 5 PPM/°C drift for applications sensitive to thermal variations over the industrial range.

Voltage Reference Part Context

This component belongs to the LT1019 family of shunt precision voltage references from Analog Devices. It shares architectural similarities with other LT1019 variants but differs in accuracy grading and output voltage. The AC designation indicates tighter manufacturing tolerances than the standard CN or IN grades, positioning it for higher-end instrumentation applications.

Voltage Reference Replacement Considerations

LT1019CN8-4.5#PBF offers similar functionality with 0.2% accuracy and 20 PPM/°C drift. LT1019IN8-4.5#PBF provides commercial grade performance. Verify pin compatibility and thermal characteristics when substituting.