LT1389BCS8-2.5#PBF

Voltage Reference Overview

The LT1389BCS8-2.5#PBF is a nanopower precision shunt voltage reference manufactured by Analog Devices Inc., housed in an 8-lead plastic SOIC package. It provides a fixed output voltage of 2.5V with an initial accuracy of ±0.05% and a maximum temperature coefficient of 20ppm/°C over the commercial operating range of 0°C to +70°C. The device maintains regulation at an ultralow operating current of 800nA, featuring less than 1Ω dynamic impedance and stability with capacitive loads without requiring external compensation.

Voltage Reference Feature Summary

• Achieves high precision through trimmed thin-film resistors and curvature correction techniques
• Maintains voltage regulation at ultralow operating currents for minimal power consumption
• Exhibits low dynamic impedance suitable for use with unregulated supplies
• Operates stably with capacitive loads without requiring output compensation capacitors

Voltage Reference Applications

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

Voltage Reference Procurement Notes

Verify component authenticity using official manufacturer documentation and datasheets. Confirm that the specific ordering suffix matches the required electrical specifications and package type. Ensure handling precautions are followed due to electrostatic sensitivity. Cross-reference part markings against factory standards to validate origin and quality compliance before integration into designs.

Voltage Reference Selection Notes

Select this component when lowest power consumption and guaranteed temperature drift are critical requirements. It serves as a high-performance upgrade for applications previously utilizing LM185/LM385, LT1004, LT1034, or LT1634 references. Consider board layout details to minimize leakage paths between pins and supply rails to maximize performance accuracy.

Voltage Reference Part Context

The LT1389 series represents a family of nanopower precision shunt voltage references designed for battery-powered and energy-efficient systems. The BCS8 variant specifically denotes the 2.5V output version within the 8-lead SOIC package lineup, offering improved curvature correction compared to standard bandgap references.

Voltage Reference Replacement Considerations

LT1389ACS8-1.25#PBF

Voltage Reference FAQ

Does the LT1389BCS8-2.5 require an output compensation capacitor?

No, the LT1389 does not require an output compensation capacitor but remains stable with capacitive loads.

What is the minimum operating current for the LT1389BCS8-2.5?

The minimum operating current is typically 0.7mA, though regulation is maintained down to ultralow currents.