LTC6655LNCHMS8-2.5#TRPBF

Overview

The LTC6655LNCHMS8-2.5#TRPBF is a precision bandgap voltage reference from Analog Devices, featuring low noise and drift characteristics suitable for high-resolution measurements. It provides a fixed output voltage of 2.5V with an initial accuracy of ±0.025% and a maximum temperature coefficient of 2ppm/°C. The device operates within a supply voltage range of 3V to 13.2V and draws a typical supply current of 7.5mA. It includes a dedicated noise reduction pin that allows wideband noise reduction via a single external capacitor. The component is housed in an 8-lead plastic MSOP package and is fully specified over the industrial temperature range of –40°C to +125°C.

Feature Summary

• Advanced curvature compensation achieves low drift of less than 2ppm/°C with predictable temperature characteristics.
• Integrated noise reduction pin enables significant wideband noise reduction with minimal external components.
• Superior load regulation and line rejection ensure consistent performance across varying operating conditions.
• Low power shutdown mode reduces consumption to under 20µA when the reference is not required.

Applications

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

Procurement Notes

Verify the specific ordering suffix #TRPBF confirms tape and reel packaging rather than tube. Confirm the LN designation indicates the low noise variant with the noise reduction pin. Ensure the CHMS8 code matches the required 8-lead MSOP plastic package. Validate the B grade corresponds to the ±0.025% accuracy specification. Check for any recent product change notifications affecting assembly or origin.

Selection Notes

Select this part when low noise and high accuracy are critical for signal integrity. The LN variant is preferred over standard versions for applications requiring reduced wideband noise. Ensure the system can accommodate the 7.5mA supply current. Verify that the 500mV dropout voltage fits within the available headroom. Consider the MSOP package size constraints against PCB layout requirements.

Part Context

This component belongs to the LTC6655 family of precision references designed for demanding automotive and industrial environments. It complements other Analog Devices voltage references by offering exceptional stability and low drift. The family includes various output voltages and packages, such as the hermetic LS8, to suit different reliability and space requirements.

Replacement Considerations

LTC6655BHMS8-2.5#TRPBF serves as a direct substitute within the same family, sharing identical electrical specifications but lacking the low noise pin feature.