LT1461BCS8-3.3#TRPBF

Voltage Reference Overview

The LT1461BCS8-3.3#TRPBF is a micropower precision low dropout series voltage reference manufactured by Analog Devices Inc., housed in an 8-lead plastic SO package with tape and reel packaging. It provides a fixed output voltage of 3.3V with an initial accuracy of ±0.06% and a maximum temperature coefficient of 7ppm/°C over the commercial operating range of 0°C to 70°C. The device draws a typical supply current of 35µA, supports a minimum output drive current of 50mA, and features a shutdown pin for power management.

Voltage Reference Feature Summary

• Combines high accuracy and low drift with low supply current and high output drive capability
• Utilizes advanced curvature compensation techniques and trimmed precision thin-film resistors
• Includes a shutdown feature to switch full load currents and enable system power down
• Incorporates thermal shutdown protection against overload conditions

Voltage Reference Applications

• A/D and D/A converters
• Precision regulators
• Handheld instruments
• Power supplies

Voltage Reference Procurement Notes

Verify the specific ordering suffix #TRPBF confirms tape and reel packaging rather than tube packaging. Confirm the B grade designation matches the required ±0.06% accuracy and 7ppm/°C temperature coefficient specifications. Ensure the component meets the 0°C to 70°C commercial temperature range requirements for your application environment.

Voltage Reference Selection Notes

Select this part when a fixed 3.3V reference with high precision is needed alongside low quiescent current consumption. The B grade offers tighter initial accuracy compared to C grade options. Consider the 8-lead SO package constraints and ensure adequate board space for recommended input and output capacitors to maintain stability under varying load conditions.

Voltage Reference Part Context

This component belongs to the LT1461 family of micropower precision low dropout series voltage references from Analog Devices Inc. The family includes various voltage options such as 2.5V, 3V, 3.3V, 4.096V, and 5V, available in different accuracy grades (A, B, C) and temperature ranges (Commercial, Industrial, High).

Voltage Reference Replacement Considerations

LT1461BCS8-3.3#PBF is the tube-packaged equivalent of this component.