LT1461BCS8-2.5#PBF

Voltage Reference Overview

The LT1461BCS8-2.5#PBF is a micropower precision low dropout series voltage reference from Analog Devices, offering a fixed 2.5V output in an 8-lead plastic SO package. It features high accuracy with an initial tolerance of ±0.06% and a maximum temperature coefficient of 7ppm/°C. The device operates within a specified commercial temperature range of 0°C to 70°C, drawing a typical supply current of 35µA. It supports a minimum output drive current of 50mA and includes a shutdown feature for power management.

Voltage Reference Feature Summary

• Combines advanced curvature compensation techniques with trimmed precision thin-film resistors to achieve high output accuracy and low drift.
• Integrates a power shutdown function that allows switching full load currents and enables system power down while minimizing supply current consumption.
• Includes thermal limiting protection to safeguard the component against overload conditions and potential damage.

Voltage Reference Applications

• A/D and D/A Converters
• Precision Regulators
• Handheld Instruments
• Power Supplies

Voltage Reference Procurement Notes

Verify the specific suffix #PBF indicates tube packaging when ordering. Confirm the B grade designation aligns with the required ±0.06% initial accuracy and 7ppm/°C temperature coefficient specifications. Ensure the 0°C to 70°C commercial operating range meets the environmental requirements of the target application before finalizing procurement.

Voltage Reference Selection Notes

Select this part for applications requiring a stable 2.5V reference with low quiescent current. The 50mA output drive capability makes it suitable for driving moderate loads directly or serving as a reference for precision regulators. Consider the 8-lead SO package constraints and verify that the specified thermal hysteresis characteristics fit the system's calibration stability needs.

Voltage Reference Part Context

This component belongs to the LT1461 family of micropower precision low dropout series voltage references. The family provides various voltage options including 2.5V, 3V, 3.3V, 4.096V, and 5V. The B grade variant specifically offers tighter performance metrics compared to lower grades, balancing precision with low power consumption for portable and battery-operated systems.

Voltage Reference Replacement Considerations

LT1461BCS8-2.5#TRPBF