LTC2631CTS8-HM10#TRMPBF

Overview

The LTC2631CTS8-HM10#TRMPBF is a single-channel, 10-bit voltage-output digital-to-analog converter (DAC) manufactured by Analog Devices Inc. It features an integrated precision reference with a full-scale output of 4.096V and operates from a 4.5V to 5.5V supply. The device utilizes a 2-wire I²C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Key electrical specifications include a maximum Integral Nonlinearity (INL) error of ±1 LSB, a typical settling time of 4.2µs at ±1 LSB for 10-bit resolution, and a power-down current of 1.8µA maximum. The part includes a power-on reset circuit configured to initialize the output to mid-scale upon power-up.

Feature Summary

• 10-Bit Resolution with ±1 LSB Maximum INL Error
• Integrated 4.096V Reference with 10ppm/°C Temperature Coefficient
• I²C Interface Supporting 400kHz Fast Mode
• Power-On Reset to Mid-Scale Output
• Automotive Temperature Grade (-40°C to 125°C)

Applications

• Mobile Communications
• Process Control and Industrial Automation
• Automatic Test Equipment
• Portable Equipment
• Automotive Systems

Procurement Notes

Verify the specific ordering suffix #TRMPBF indicates a 500-unit tape and reel packaging configuration as defined in the manufacturer's documentation. Confirm that the H-grade temperature rating (-40°C to 125°C) aligns with the operational environment requirements. Ensure the supply voltage range of 4.5V to 5.5V is compatible with the system design, as this variant does not support operation below 4.5V.

Selection Notes

Select this component when a 10-bit resolution with high accuracy (±1 LSB INL) is required in a compact TSOT-23 package. The H-grade designation is necessary for applications operating between -40°C and 125°C. The HM suffix specifies a mid-scale power-on reset state; choose the LZ suffix if a zero-scale reset is preferred. This model requires a minimum supply voltage of 4.5V, distinguishing it from the L-grade variants which operate down to 2.7V.

Part Context

This part belongs to the LTC2631 family of single-channel DACs available in 8-, 10-, and 12-bit resolutions. The family shares a common 8-lead TSOT-23 package and I²C interface architecture. Variants are differentiated by resolution, internal reference voltage (2.5V or 4.096V), power-on reset behavior, and temperature grade. The CTS8 designation identifies the commercial temperature grade version in the ThinSOT-23 package.

Replacement Considerations

Direct pin-compatible replacements within the same family include LTC2631CTS8-LM10#TRMPBF (2.5V FS, lower voltage range) or LTC2631CTS8-HZ10#TRMPBF (zero-scale reset). Cross-family replacements require verification of I²C compatibility and package dimensions.