LT1790BIS6-2.5#TRMPBF

Voltage Reference Overview

The LT1790BIS6-2.5#TRMPBF is a micropower low dropout series voltage reference from Analog Devices, housed in a 6-lead plastic TSOT-23 package. It provides a fixed output voltage of 2.5V with an initial accuracy of ±0.1% and a maximum temperature coefficient of 25ppm/°C. The device operates within a supply voltage range of 3V to 18V and draws a maximum supply current of 80µA. It supports both sourcing and sinking currents, ensuring stable performance across the industrial temperature range of –40°C to +85°C.

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
• Post-package trimmed to reduce temperature coefficient and increase output accuracy
• Capable of operating as a micropower negative voltage reference by sinking current

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 #TRMPBF indicates tape and reel packaging with restricted availability. Confirm the B grade denotes 0.1% initial accuracy and 25ppm/°C max temperature coefficient. Ensure the IS6 designation matches the required –40°C to +85°C industrial temperature range. Check for lead-free finish compliance and RoHS status before finalizing procurement orders.

Voltage Reference Selection Notes

Select this component when precise voltage referencing is required in space-constrained designs. The low supply current makes it suitable for battery-operated systems where power efficiency is critical. The ability to sink current allows for flexible circuit topologies, including negative reference generation. Verify that the 2.5V output meets the system's reference requirements and that the TSOT-23 package fits the PCB layout 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 and accuracy grades (A and B). The LT1790 series is designed for applications requiring high accuracy, low drift, and minimal power consumption in a compact surface-mount package.

Voltage Reference Replacement Considerations

LT1790BCS6-2.5#TRMPBF