LT6658BHDE-3.3#TRPBF

Overview

The LT6658BHDE-3.3#TRPBF is a precision dual output voltage reference from Analog Devices, featuring a fixed 3.3V output and housed in a 16-lead (4mm × 3mm) plastic DFN package with an exposed thermal pad. It operates within a junction temperature range of –40°C to 125°C. The device provides Output 1 sourcing up to 150mA and Output 2 sourcing up to 50mA. Key electrical specifications include a maximum initial accuracy of ±0.1% and a maximum temperature coefficient of 20ppm/°C. It supports input voltages up to 36V and includes features such as Kelvin sense connections, separate supply pins for each output, and thermal shutdown protection.

Feature Summary

• Dual independent outputs with identical precision specifications that track each other over temperature and load variations.
• High current capability allowing Output 1 to source up to 150mA and Output 2 to source up to 50mA.
• Kelvin sense connections on outputs to achieve low load regulation by compensating for trace resistance.
• Separate supply pins for each output to allow isolation of buffer amplifiers and power consumption reduction.

Applications

• Microcontroller or FPGA systems requiring integrated ADC/DAC references
• Data acquisition systems demanding high precision and stability
• Automotive control and monitoring circuits
• Precision low noise regulator designs

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm the BHDE designation corresponds to the B-grade performance, 125°C operating range, and DFN package type. Ensure compatibility with the required 3.3V fixed output configuration. Check for RoHS compliance status associated with the PBF suffix variant if lead-free assembly is mandatory.

Selection Notes

Select this component when a dual-output reference with high current drive is required for driving both analog and digital loads simultaneously. The B-grade specification offers a balance of cost and performance with 20ppm/°C drift. Consider the DFN package for thermal management needs and space-constrained layouts. Verify input voltage requirements do not exceed the 36V maximum rating.

Part Context

This part belongs to the LT6658 family of Refulator™ devices, which combine voltage reference and linear regulator performance. The family includes MSOP and DFN packages with various voltage options and grade distinctions (A, B, H). The BHDE suffix specifically denotes the B-grade accuracy, high-temperature operation, DFN package, and fixed 3.3V output.

Replacement Considerations

LT6658BIDE-3.3#TRPBF