LT6656AIDC-3.3#TRMPBF

Voltage Reference Overview

The LT6656AIDC-3.3#TRMPBF is a precision series voltage reference from Analog Devices Inc., featuring a fixed output of 3.3V with an initial accuracy of ±0.1% and a temperature coefficient of 10ppm/°C. It operates within a supply range of 2.51V to 18V, drawing a typical supply current of 1µA. The device provides up to 5mA of output drive current and includes reverse input/output protection. It is housed in a 6-lead DFN package and specified for operation from –40°C to 85°C.

Voltage Reference Feature Summary

• Ultralow supply current consumption suitable for battery-powered applications
• High accuracy with low temperature drift characteristics
• Capable of sourcing up to 5mA output drive current
• Includes reverse input and output protection

Voltage Reference Applications

• Precision A/D and D/A converters
• Portable gas monitors
• Battery- or solar-powered systems
• Micropower remote sensing

Voltage Reference Procurement Notes

Verify the specific grade suffix (A vs B) and package type (DC vs S6) against project requirements, as performance metrics like initial accuracy vary between grades. Confirm that the industrial temperature range (-40°C to 85°C) aligns with environmental specifications. Ensure proper PCB layout for the DFN exposed pad connection to ground to maintain thermal and electrical stability.

Voltage Reference Selection Notes

Select this component when a stable 3.3V reference is needed with minimal quiescent current draw. The A-grade offers tighter initial accuracy than the B-grade. Consider the DFN package for space-constrained designs requiring surface-mount assembly. Verify load regulation requirements against the 0.1% accuracy specification for critical analog front-end applications.

Voltage Reference Part Context

This part belongs to the LT6656 family of 1µA precision series voltage references. It shares core architectural features with other variants in the series, such as the TSOT-23 packaged versions, but utilizes the DFN package for different thermal and footprint characteristics. The 'I' suffix denotes the industrial temperature range, distinguishing it from commercial grade options.

Voltage Reference Replacement Considerations

LT6656ACDC-3.3#TRMPBF

Voltage Reference FAQ

What is the minimum required output capacitance for stable operation?

A minimum output capacitor of 1µF is required for stable operation.

Does the LT6656 support reverse polarity connections?

Yes, the device can withstand the reversal of input connections and includes reverse input/output protection.