LT6658BHDE-5#PBF

Overview

The LT6658BHDE-5#PBF is a precision dual output voltage reference from Analog Devices, operating at a fixed 5V output. It features B-grade specifications with an initial accuracy of ±0.1% and a maximum temperature coefficient of 20ppm/°C. The device utilizes a 16-lead DFN package (4mm × 3mm) and supports an extended junction temperature range from -40°C to +125°C. Key electrical parameters include a maximum input voltage of 36V, a typical supply current of 1.9mA, and low noise performance of 2.2ppm peak-to-peak in the 0.1Hz to 10Hz band.

Feature Summary

• Combines precision voltage reference and linear regulator functions for high-current driving capability
• Features separate supply pins for each output to reduce power consumption and isolate buffer amplifiers
• Includes Kelvin sense connections on outputs for precise load regulation
• Provides thermal shutdown protection and short-circuit prevention

Applications

• Microcontroller or FPGA systems with integrated ADC/DAC components
• High-resolution data acquisition systems requiring stable reference voltages
• Automotive control and monitoring circuits
• Precision instrumentation and process control equipment

Procurement Notes

Verify the specific suffix DE indicates the 16-lead DFN package configuration. Confirm the BH designation corresponds to the B-grade accuracy and H-grade temperature range requirements. Ensure compatibility with the 5V fixed output option. Check for RoHS compliance status as indicated by the PBF suffix. Validate that the supplier provides genuine Analog Devices components.

Selection Notes

Select this component when dual isolated outputs are required for sensitive analog front ends. The DFN package offers thermal management benefits for compact designs. Consider the B-grade tolerance if tighter A-grade specifications are not necessary. Verify input voltage headroom meets the dropout requirements for the 5V output under maximum load conditions.

Part Context

This part belongs to the LT6658 family of Refulator devices, which integrate precision references with linear regulators. The BHDE variant specifically denotes the B-grade performance level, High-temperature grade (-40°C to 125°C), and DFN package type. It shares architectural similarities with other LT6658 models but differs in package footprint and thermal characteristics.

Replacement Considerations

LT6658BIDE-5#PBF serves as a direct substitute within the same family, offering identical electrical specifications but housed in a 16-lead MSOP package instead of the DFN form factor.