LT1790BCS6-2.5#TRPBF

Voltage Reference Overview

The LT1790BCS6-2.5#TRPBF is a micropower low dropout series voltage reference from Analog Devices, housed in a 6-lead TSOT-23 package. It provides a fixed output voltage of 2.5V with an initial accuracy tolerance of ±0.1%. The device operates within a commercial temperature range of 0°C to 70°C and supports input voltages from 2.6V up to 18V. Key electrical characteristics include a maximum supply current of 80µA, a typical thermal hysteresis of 40ppm, and a temperature coefficient of 25ppm/°C. It features curvature compensation and post-package trimming for high precision.

Voltage Reference Feature Summary

• Combines high accuracy and low drift with low power dissipation and small package size
• Uses curvature compensation and trimmed precision thin-film resistors for stability
• Capable of sinking and sourcing current for positive or negative reference applications
• Minimizes thermally induced hysteresis through specialized manufacturing care

Voltage Reference Applications

• Handheld Instruments
• Negative Voltage References
• Industrial Control Systems
• Data Acquisition Systems
• Battery-Operated Equipment

Voltage Reference Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging with lead-free finish. Confirm the 'BCS6' designation corresponds to the B grade (0.1% accuracy) and commercial temperature range (0°C to 70°C). Ensure compatibility with the required 2.5V output specification. Check for any discontinuation notices or limited availability status from the manufacturer before finalizing procurement plans.

Voltage Reference Selection Notes

Select this component when a fixed 2.5V reference with 0.1% initial accuracy is required in a compact SOT-23 form factor. It is suitable for battery-operated systems due to its micropower consumption and low dropout voltage. Consider the commercial temperature range limitation if operation below 0°C is necessary, as industrial variants exist. Verify that the 80µA supply current meets the system's power budget constraints.

Voltage Reference Part Context

This part belongs to the LT1790 family of micropower SOT-23 low dropout references. The family offers various output voltages including 1.25V, 2.048V, 3V, 3.3V, 4.096V, and 5V. Variants are available in A grade (0.05% accuracy) and B grade (0.1% accuracy), with both commercial and industrial temperature ranges. The LT1790 is designed to replace shunt references by eliminating the need to idle load current.

Voltage Reference Replacement Considerations

LT1790BCS6-2.5#TRMPBF