LTC6655LNCHMS8-4.096#PBF

Overview

The Analog Devices LTC6655LNCHMS8-4.096#PBF is a precision bandgap voltage reference featuring low noise and drift characteristics, housed in an 8-lead MSOP package. It provides a fixed output voltage of 4.096V with an initial accuracy of ±0.025% and a maximum temperature coefficient of 2ppm/°C. The device operates within a supply voltage range from VOUT + 0.5V up to 13.2V, drawing a typical supply current of 7mA. It supports sourcing and sinking currents of ±5mA and includes a shutdown mode consuming less than 20µA.

Feature Summary

• Low Noise: Features a dedicated noise reduction pin for wideband noise attenuation using a single external capacitor.
• High Accuracy: Delivers exceptional initial accuracy and low drift performance suitable for high-resolution measurements.
• Dual Output Capability: Includes separate force and sense pins to minimize load regulation errors.
• Low Power Shutdown: Offers a shutdown mode with minimal current consumption for power-sensitive applications.

Applications

• Instrumentation and test equipment
• High resolution data acquisition systems
• Precision battery monitors

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and lead finish. Confirm availability status as distribution channels may list limited stock or special order requirements. Ensure the component matches the exact part number for the required temperature grade and electrical specifications before procurement.

Selection Notes

Select this component when low noise and high stability are critical for precision measurement applications. The LN variant is specifically designed for reduced wideband noise compared to standard versions. Consider the MSOP package for surface mount assembly needs. Verify that the 4.096V output aligns with system requirements and that the operating temperature range covers the intended environment.

Part Context

This part belongs to the LTC6655 family of precision voltage references from Analog Devices. The family offers various output voltages and packages, including hermetic LS8 options. The 'LN' designation indicates the low noise version with a noise reduction pin, while 'C' denotes the commercial temperature grade. The '#PBF' suffix specifies lead-free packaging.

Replacement Considerations

LTC6655CHMS8-4.096#PBF (Standard noise version)

FAQ

How does the noise reduction pin function?

The NR pin allows for the reduction of wideband noise by connecting a capacitor between this pin and ground, enabling customization of the noise performance based on application requirements.

What is the purpose of the VOUT_S pin?

The VOUT_S pin serves as the remote sense connection. Connecting it directly at the load minimizes load regulation errors caused by trace resistance, ensuring accurate voltage delivery.