LT6658BIDE-3.3#TRPBF

Overview

The LT6658BIDE-3.3#TRPBF is a precision dual output voltage reference from Analog Devices, featuring a fixed 3.3V output with B-grade accuracy of ±0.1% and a maximum temperature coefficient of 20ppm/°C. It operates within an industrial temperature range of -40°C to 85°C and utilizes a 16-lead DFN package. The device integrates two independent outputs capable of sourcing up to 150mA on Output 1 and 50mA on Output 2, while supporting sink currents of 20mA each. Designed for high-performance applications, it offers low noise characteristics and excellent load regulation.

Feature Summary

• Dual output architecture with identical precision specifications that track each other over temperature and load variations
• Integrated Refulator technology combining precision reference performance with linear regulator capabilities
• Kelvin sense connections enable precise load regulation by minimizing trace resistance effects
• Separate supply pins allow isolation of buffer amplifiers to reduce power consumption

Applications

• Driving reference inputs of high-resolution ADCs and DACs under heavy loading conditions
• Simultaneous powering of microcontrollers and other circuitry alongside precision analog components
• Data acquisition systems requiring stable and accurate voltage references
• Automotive control and monitoring applications

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm the B-grade designation matches the required accuracy and temperature coefficient specifications for your design. Ensure the DFN package footprint aligns with your PCB layout constraints. Check current availability status as supply may be limited or subject to factory special orders.

Selection Notes

Select this component when dual tracking outputs are required for synchronized precision applications. The B-grade specification provides adequate accuracy for many industrial uses while offering cost benefits compared to A-grade options. Consider the separate supply pin feature if independent power management for buffers is necessary. Verify input voltage requirements meet the minimum dropout specifications for the desired load currents.

Part Context

This part belongs to the LT6658 family of precision dual output references. The 'B' indicates B-grade accuracy and temperature coefficient specifications. The 'IDE' denotes the 16-lead DFN package type. The '-3.3' specifies the fixed 3.3V output voltage option. The '#TRPBF' suffix confirms tape and reel packaging with lead-free compliance.

Replacement Considerations

LT6658AIMSE-3.3#TRPBF (A-grade MSOP version)

FAQ

What is the maximum source current capability for each output?

Output 1 can source up to 150mA, while Output 2 can source up to 50mA.

How does the Kelvin sense connection benefit the design?

It provides improved load regulation by sensing the voltage directly at the load, compensating for trace resistance drops.

Can the outputs be configured for different voltages?

Yes, external resistors can be used to configure each output to provide an output voltage up to 6V.