LT1790ACS6-4.096#TRPBF

Voltage Reference Overview

The LT1790ACS6-4.096#TRPBF 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 4.096V with an initial accuracy of ±0.05% and a maximum temperature coefficient of 10ppm/°C. The device operates within a supply voltage range of 4.6V to 18V and draws a maximum supply current of 80µA. It is specified for commercial temperatures ranging from 0°C to +70°C.

Voltage Reference Feature Summary

• Curvature compensation and trimmed thin-film resistors ensure high output accuracy and low drift.
• Capable of sourcing and sinking current, allowing operation as a negative voltage reference.
• Post-package trimming minimizes thermal hysteresis and improves temperature stability.
• Low power dissipation and small package size are ideal for battery-operated systems.

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 'AC' grade corresponds to the required 0.05% accuracy and 10ppm/°C drift specifications. Ensure the commercial temperature range (0°C to 70°C) meets the application requirements, as industrial grades are available with different suffixes.

Voltage Reference Selection Notes

Select this component when high precision is required in a compact SOT-23 form factor. The AC grade offers superior accuracy compared to the BC grade. Consider the minimum operating voltage differential relative to the load current requirements. Verify that the 4.096V output aligns with system reference needs without requiring external scaling.

Voltage Reference Part Context

This part belongs to the LT1790 family of micropower references. It shares architectural similarities with other voltage options in the series, such as the LT1790ACS6-5#TRPBF. The family utilizes curvature compensation technology to achieve low temperature coefficients across various fixed output voltages.

Voltage Reference Replacement Considerations

LT1790AIS6-4.096#TRPBF offers the same electrical performance but with an extended industrial temperature range (-40°C to 85°C). LT1790BCS6-4.096#TRPBF provides a lower accuracy grade (0.1%) at potentially lower cost if precision requirements allow.