LT6658BHMSE-1.2#TRPBF

Voltage Reference Overview

The LT6658BHMSE-1.2#TRPBF is a precision dual output voltage reference from Analog Devices, operating within the specified junction temperature range of –40°C to 125°C. It provides a nominal output voltage of 1.2V with an initial accuracy of ±0.1% and a maximum temperature coefficient of 20ppm/°C. The device features Output 1 capable of sourcing up to 150mA and sinking 20mA, while Output 2 sources up to 50mA and sinks 20mA. It utilizes a 16-lead MSOP package with tape and reel packaging.

Voltage Reference Feature Summary

• Combines precision voltage reference performance with linear regulator capabilities for high current drive
• Features two independent outputs that track each other over temperature and load variations
• Includes separate supply pins for each output to reduce power consumption and isolate buffer amplifiers
• Incorporates Kelvin sense connections on outputs for precise load regulation

Voltage Reference Applications

• Microcontroller or FPGA systems with integrated ADC/DAC applications
• Data acquisition systems requiring stable reference inputs
• Automotive control and monitoring circuits
• Precision low noise regulators in instrumentation

Voltage Reference Procurement Notes

Verify the specific suffix #TRPBF confirms tape and reel packaging rather than tube. Confirm the B-grade designation matches the required ±0.1% accuracy and 20ppm/°C drift specifications. Ensure the H-grade temperature rating aligns with the operational environment requirements. Cross-reference the manufacturer part number against official Analog Devices documentation to validate authenticity.

Voltage Reference Selection Notes

Select this component when dual isolated references are needed for simultaneous ADC/DAC powering and microcontroller supply. The B-grade offers cost-effective precision compared to A-grade options. Consider the H-grade temperature range if operation exceeds standard industrial limits. Evaluate the 150mA source capability of Output 1 against heavy loading requirements.

Voltage Reference Part Context

This part belongs to the LT6658 family of Refulator devices, which merge reference and regulator functions. The MSE16 package provides thermal management via an exposed pad. Other variants include different voltage options like 2.5V and 3.3V, and alternative grades such as AIMSE or AHMSE for varying accuracy and temperature ranges.

Voltage Reference Replacement Considerations

LT6658BIMSE-1.2#TRPBF (I-grade, -40°C to 85°C)

Voltage Reference FAQ

What is the maximum output current for Output 1?

Output 1 can source up to 150mA and sink up to 20mA.

How does the OD pin function?

The OD pin allows for shutdown functionality; pulling it low disables the outputs to reduce supply current.