LT1790ACS6-3.3#TRPBF

Voltage Reference Overview

The LT1790ACS6-3.3#TRPBF is a micropower low dropout series voltage reference from Analog Devices, featuring a fixed 3.3V output with an initial accuracy of ±0.05% and a maximum temperature coefficient of 10ppm/°C. It operates within a supply voltage range of 3.8V to 18V and draws a maximum no-load supply current of 80µA. The device is housed in a 6-lead plastic TSOT-23 package and is specified for commercial operation between 0°C and 70°C.

Voltage Reference Feature Summary

• Curvature compensation combined with trimmed precision thin-film resistors ensures high output accuracy and low drift.
• Post-package trimming significantly reduces the temperature coefficient and enhances output stability.
• Capable of both sourcing and sinking current, allowing operation as a micropower negative voltage reference.

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 when ordering. Confirm the 'AC' grade designation matches the required 0.05% accuracy and 10ppm/°C drift specifications. Ensure the commercial temperature range (0°C to 70°C) aligns with the application environment requirements before finalizing procurement.

Voltage Reference Selection Notes

Select this component for applications requiring high precision in a small form factor with minimal power consumption. The AC grade provides tighter tolerance than the BC grade. Consider the minimum operating voltage differential relative to the load current to ensure stable regulation under all expected operating conditions.

Voltage Reference Part Context

This part belongs to the LT1790 family of micropower SOT-23 low dropout references. The family offers various fixed output voltages including 1.25V, 2.048V, 2.5V, 3V, 3.3V, 4.096V, and 5V. The 'S6' indicates the 6-lead TSOT-23 package, while 'AC' denotes the A-grade performance level.

Voltage Reference Replacement Considerations

LT1790BCS6-3.3#TRPBF: Lower accuracy grade (0.1%). LT1790AIS6-3.3#TRPBF: Wider industrial temperature range (-40°C to 85°C). LT1790BIS6-3.3#TRPBF: Industrial range with lower accuracy.