LT6658AIDE-2.5#TRPBF

Overview

The LT6658AIDE-2.5#TRPBF is a precision dual output voltage reference from Analog Devices, featuring a fixed 2.5V output with ±0.05% initial accuracy and a maximum temperature coefficient of 10ppm/°C. It operates within an industrial temperature range of -40°C to +85°C and utilizes a 16-lead (4mm × 3mm) 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. It accepts input voltages up to 36V and includes thermal shutdown protection.

Feature Summary

• Dual output architecture with identical precision specifications that track each other over temperature and load variations
• Integrated Refulator technology combining high-current linear regulation with low-noise voltage referencing capabilities
• Kelvin sense connections for precise load regulation and separate supply pins to isolate buffer amplifiers

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, low-drift voltage sources
• Precision instrumentation and process control equipment

Procurement Notes

Verify the specific suffix #TRPBF confirms tape and reel packaging rather than tube configuration. Confirm the A-grade designation matches required accuracy and drift specifications. Ensure the DFN package footprint aligns with PCB layout requirements. Validate RoHS compliance status through official documentation before procurement.

Selection Notes

Select this component when dual isolated outputs are required for simultaneous analog and digital power needs. Consider the 150mA capability of Output 1 for driving multiple high-resolution converters. Evaluate the 10ppm/°C drift specification against system stability requirements. Verify input voltage headroom meets minimum dropout requirements for the selected load current.

Part Context

This part belongs to the LT6658 family of precision dual output references. The 'A' grade indicates tighter performance tolerances compared to B-grade variants. The 'IDE' suffix specifies the 16-lead DFN package type. The '#TRPBF' suffix denotes tape and reel packaging with lead-free finish.

Replacement Considerations

LT6658BIDE-2.5#TRPBF offers similar functionality with relaxed accuracy and drift specifications.