LT6656ACDC-1.25#TRPBF

Voltage Reference Overview

The LT6656ACDC-1.25#TRPBF is a precision series voltage reference manufactured by Analog Devices Inc., featuring a fixed output of 1.25V with an initial accuracy of ±0.1% and a maximum temperature coefficient of 10ppm/°C. It operates within a supply voltage range up to 18V, drawing a typical supply current of 1µA. The device provides a minimum output drive current of 5mA and requires a minimum output capacitance of 1µF for stability. It is housed in a 6-lead (2mm × 2mm) plastic DFN package and is specified for commercial operation from 0°C to 70°C.

Voltage Reference Feature Summary

• Ultralow supply current consumption suitable for battery-powered applications
• Low dropout voltage allowing operation with minimal headroom
• High output drive capability supporting low-power ADCs
• 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 suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the AC grade designation corresponds to the required 0.1% initial accuracy and 10ppm/°C drift specifications. Ensure the DC package type matches the PCB footprint requirements. Check that the commercial temperature range meets the application's environmental needs.

Voltage Reference Selection Notes

Select this component for designs requiring a compact surface-mount voltage reference with minimal quiescent current. The 1.25V output is ideal for low-voltage signal processing or as a reference for microcontrollers. Consider the 10ppm/°C drift specification against the system's total error budget. Verify that the 5mA output drive is sufficient for the connected load without exceeding thermal limits.

Voltage Reference Part Context

This part belongs to the LT6656 family of 1µA precision series voltage references. The family offers various output voltages including 1.25V, 2.048V, 2.5V, and 5V. Other packages include TSOT-23 and hermetic LS8. The AC grade denotes commercial temperature range availability, while AIS6 variants offer industrial range.

Voltage Reference Replacement Considerations

LT6656BCDC-1.25#TRPBF: Offers 0.2% accuracy and 20ppm/°C drift.

Voltage Reference FAQ

What is the minimum output capacitance required for stable operation?

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

Does the LT6656 support reverse input connections?

Yes, the device can withstand the reversal of input connections.