LT1019CS8-4.5#PBF

Voltage Reference Overview

The LT1019CS8-4.5#PBF is a precision shunt voltage reference IC manufactured by Analog Devices Inc., housed in an 8-SOIC surface-mount package. It provides a fixed output voltage of 4.5 V with an initial accuracy of ±0.2% and a temperature coefficient of 20 ppm/°C. The device operates within a supply voltage range of 6.5 V to 40 V, drawing a typical supply current of 650 µA and supporting a maximum cathode current of 10 mA. It functions reliably across a commercial temperature range of 0°C to +70°C.

Voltage Reference Feature Summary

• Delivers high-precision fixed voltage output with tight initial tolerance
• Features low temperature coefficient for stable performance over thermal variations
• Operates efficiently with low quiescent supply current consumption

Voltage Reference Applications

• Precision analog-to-digital converter (ADC) reference sources
• Digital-to-analog converter (DAC) voltage references
• High-accuracy measurement instrumentation circuits
• Battery-powered systems requiring stable reference voltages

Voltage Reference Procurement Notes

Verify the complete part number including suffixes such as #PBF for lead-free compliance and CS8 for the SOIC-8 package variant. Confirm that the required operating temperature range aligns with the commercial specification limits. Ensure input voltage constraints are respected to maintain regulation integrity. Cross-reference manufacturer documentation for any recent product change notifications or marking updates.

Voltage Reference Selection Notes

Select this component when a fixed 4.5 V reference is required in a compact surface-mount form factor. Consider the 20 ppm/°C temperature coefficient against application stability needs. Evaluate the 10 mA maximum sink current capability against load requirements. Compare alternative packages like PDIP if through-hole mounting is necessary for the same electrical specifications.

Voltage Reference Part Context

This component belongs to the LT1019 series of precision shunt voltage references from Analog Devices. The series offers various fixed output voltages and packaging options to suit different design constraints. The CS8 suffix specifically denotes the 8-pin Small Outline Integrated Circuit package, distinguishing it from through-hole variants like the CN8 or IN8 series members.

Voltage Reference Replacement Considerations

LT1019CS8-5#PBF: Provides 5V output instead of 4.5V; verify voltage compatibility. LT1019CN8-4.5#PBF: Same electrical specs but in PDIP-8 through-hole package.