LT1019ACS8-5#PBF

Voltage Reference Overview

The LT1019ACS8-5#PBF is a precision shunt voltage reference manufactured by Analog Devices Inc., housed in an 8-SOIC surface-mount package. It provides a fixed output voltage of 5V with an initial accuracy of ±0.05% and a temperature coefficient of 10 ppm/°C. The device operates within an input voltage range of 6.5V to 40V, supporting a maximum shunt current of 10 mA while maintaining a minimum operating current of 800 µA. Typical supply current is 650 µA, with a maximum of 1.3 mA. Noise performance is specified at 2.5 ppm peak-to-peak from 0.1Hz to 10Hz. It functions without a shutdown feature across commercial (0°C to +70°C) and industrial (-40°C to +85°C) temperature grades.

Voltage Reference Feature Summary

• Delivers high-precision 5V reference output with ±0.05% initial accuracy
• Features low temperature drift of 10 ppm/°C for stable operation
• Supports wide input voltage range up to 40V for flexible biasing
• Provides low noise performance suitable for sensitive analog circuits

Voltage Reference Applications

• Precision data acquisition systems requiring stable reference voltages
• High-resolution analog-to-digital converter (ADC) reference inputs
• Calibration equipment needing accurate voltage standards
• Instrumentation amplifiers and sensor signal conditioning circuits

Voltage Reference Procurement Notes

Verify the specific suffix 'CS' indicates the commercial temperature grade variant when sourcing. Confirm the SOIC-8 package dimensions match the target PCB footprint. Ensure the 5V output aligns with system requirements. Check RoHS compliance status for environmental regulations. Validate supplier authenticity through authorized channels to avoid counterfeit components.

Voltage Reference Selection Notes

Choose this component when ±0.05% accuracy and 10 ppm/°C stability are required in a surface-mount format. Compare against the IN series for wider temperature ranges or CN series for through-hole mounting. Consider the IS series if industrial temperature operation is necessary. Evaluate power dissipation limits based on the maximum shunt current capability of 10 mA.

Voltage Reference Part Context

This part belongs to the LT1019 family of precision shunt references, offering higher accuracy than the standard LT1019 variants. It complements other Analog Devices voltage references like the ADR series for applications demanding ultra-low drift. The SOIC-8 package allows for compact design in modern electronic assemblies compared to traditional DIP packages.

Voltage Reference Replacement Considerations

LT1019IS8-5#PBF offers identical electrical specifications but supports an extended industrial temperature range (-40°C to +85°C). LT1019CN8-5#PBF provides through-hole mounting options with similar performance. Verify thermal management requirements when substituting between package types.