LT6658BIDE-1.2#TRPBF

Overview

The LT6658BIDE-1.2#TRPBF is a precision dual output voltage reference from Analog Devices, operating at a fixed 1.2V output with B-grade accuracy of ±0.1% and a maximum temperature coefficient of 20ppm/°C. It features Output 1 sourcing up to 150mA and Output 2 sourcing up to 50mA, utilizing Kelvin sense connections for low load regulation. The device operates within a specified junction temperature range of –40°C to 85°C and is housed in a 16-lead (4mm × 3mm) plastic DFN package.

Feature Summary

• Dual outputs with identical precision specifications that track each other over temperature and load variations
• Kelvin sense connection capability enabling high current drive with minimal load regulation error
• Separate supply pins provided for each output to allow power consumption reduction and buffer amplifier isolation

Applications

• Microcontroller or FPGA systems incorporating ADC/DAC components
• Data acquisition systems requiring stable reference inputs
• Automotive control and monitoring circuits
• Precision instrumentation and process control equipment

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm the B-grade designation aligns with required accuracy tolerances of ±0.1%. Ensure the DFN package thermal pad is properly soldered to the PCB ground plane for adequate heat dissipation during operation.

Selection Notes

Select this component when dual isolated references are needed for driving heavy loads on both ADC and DAC lines simultaneously. The B-grade offers standard precision suitable for general industrial applications. Consider the A-grade if tighter initial accuracy and lower drift are required for higher performance data conversion systems.

Part Context

This part belongs to the LT6658 family of Refulator devices, combining voltage reference and linear regulator performance. The 'IDE' suffix denotes the 16-lead DFN package variant, while 'B' specifies the B-grade performance tier. The '1.2' indicates the fixed 1.2V output voltage option available across the series.

Replacement Considerations

LT6658AIMSE-1.2#TRPBF

FAQ

Can the output voltage be adjusted?

Yes, although the base voltage is 1.2V, each output can be configured with external resistors to provide an adjustable output voltage up to 6V.

What is the purpose of the OD pin?

The OD pin allows for output disable functionality, providing an option to reduce power consumption by shutting down the internal circuitry when not in use.