LT1634AIS8-5#PBF

Voltage Reference Overview

The LT1634AIS8-5#PBF is a micropower precision shunt voltage reference manufactured by Analog Devices Inc. It provides a fixed 5V output with an initial accuracy of ±0.05% and a maximum temperature coefficient of 10ppm/°C. The device operates at a low current of 10µA and features less than 1Ω dynamic impedance. It is housed in an 8-lead plastic SO package and supports an industrial operating temperature range from -40°C to +85°C.

Voltage Reference Feature Summary

• Utilizes trimmed precision thin film resistors for high initial accuracy
• Operates at extremely low quiescent current levels
• Stable with capacitive loads without requiring external compensation

Voltage Reference Applications

• Portable meters
• Precision regulators
• A/D and D/A converters
• Calibrators

Voltage Reference Procurement Notes

Verify the specific suffix #PBF indicates lead-free finish and tube packaging when sourcing. Confirm that the AIS8 designation corresponds to the industrial temperature grade (-40°C to +85°C) and the S8 narrow SOIC package type required for your PCB layout. Ensure compatibility with existing supply voltages given the minimum operating current specifications.

Voltage Reference Selection Notes

Select this component when upgrading from older references like LM185 or LT1034 where lower power consumption and guaranteed temperature drift are critical requirements. The industrial grade variant is suitable for environments requiring operation below zero degrees Celsius. Verify that the 5V output aligns with system logic levels and ADC input ranges.

Voltage Reference Part Context

This part belongs to the LT1634 family of micropower precision shunt voltage references. The family includes variants with different output voltages (1.25V, 2.5V, 4.096V) and packages (MSOP, TO-92). The 'AI' prefix specifically denotes the industrial temperature range version within the 8-lead SOIC form factor.

Voltage Reference Replacement Considerations

• LT1634BCS8-5#PBF
• LT1634ACS8-5#PBF

Voltage Reference FAQ

Does the LT1634 require an output compensation capacitor?

No, the LT1634 does not require an output compensation capacitor but remains stable with capacitive loads.

What is the maximum temperature coefficient for this device?

The LT1634 guarantees a maximum temperature drift of 10ppm/°C due to improved curvature correction techniques.