LT6658BIMSE-3.3#TRPBF

Voltage Reference Overview

The LT6658BIMSE-3.3#TRPBF is a precision dual output voltage reference from Analog Devices, packaged in a 16-lead MSOP with an exposed pad. It provides a fixed 3.3V output with B-grade initial accuracy of ±0.1% and a maximum temperature coefficient of 20ppm/°C over the -40°C to +85°C range. The device features separate supply pins for each output, supporting Output 1 sourcing up to 150mA and Output 2 sourcing up to 50mA. It operates with input voltages up to 36V and includes thermal shutdown protection.

Voltage Reference Feature Summary

• Dual independent outputs with identical precision specifications that track each other across temperature and load variations
• High current drive capability utilizing Kelvin sense connections for precise regulation under heavy loading conditions
• Separate supply pins allow for power consumption reduction and isolation between buffer amplifiers
• Integrated noise reduction pin enables band-limiting and lowering of total integrated output noise

Voltage Reference Applications

• Driving reference inputs of high resolution ADCs and DACs
• Providing stable power for microcontrollers and FPGA circuitry
• Data acquisition systems requiring low drift references
• Precision instrumentation and process control equipment

Voltage Reference Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when ordering. Confirm the B-grade designation matches the required ±0.1% accuracy and 20ppm/°C drift specifications for your application. Ensure the MSOP-16 package footprint aligns with your PCB layout requirements. Check for RoHS compliance status if mandated by your manufacturing standards.

Voltage Reference Selection Notes

Select this component when dual tracking references are needed for mixed-signal systems. The B-grade offers a balance of cost and performance for general precision applications. Consider the A-grade variant if tighter ±0.05% accuracy or lower 10ppm/°C drift is required. Evaluate the DFN package option if smaller board space is available.

Voltage Reference Part Context

This part belongs to the LT6658 family of Refulator™ devices, combining voltage reference and linear regulator performance. The BIMSE-3.3 variant specifically denotes the B-grade temperature performance, MSOP-16 package, and 3.3V fixed output. It is designed to replace standard LDOs where higher precision and lower noise are critical for signal integrity.

Voltage Reference Replacement Considerations

LT6658AIMSE-3.3#TRPBF (A-grade, tighter specs)

Voltage Reference FAQ

Can the output voltage be adjusted?

Yes, although the BIMSE-3.3 is factory-trimmed to 3.3V, the LT6658 architecture allows external resistors to configure outputs up to 6V.

What is the purpose of the OD pin?

The OD pin provides a shutdown function to reduce power consumption by disabling the internal regulators when not in use.