LTC2631ITS8-LM10#TRMPBF

Overview

The LTC2631ITS8-LM10#TRMPBF is a single-channel, 10-bit voltage-output digital-to-analog converter (DAC) manufactured by Analog Devices Inc. It integrates a precision reference with a temperature coefficient of 10ppm/°C and operates from a single 2.7V to 5.5V supply. The device features a rail-to-rail output buffer guaranteed monotonic over temperature, achieving a typical settling time of 3.8µs for 10-bit accuracy. It utilizes a 2-wire I²C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. 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 ±0.5 LSB maximum Integral Nonlinearity (INL) error
• Integrated 10ppm/°C reference providing a 2.5V full-scale output
• I²C interface with selectable addresses via CA0 pin
• Power-on reset to mid-scale option

Applications

• Mobile communications
• Process control and industrial automation
• Portable equipment

Procurement Notes

Verify the specific ordering suffix #TRMPBF indicates a 500-unit tape and reel packaging configuration. Confirm that the 'I' grade designation matches the required operating temperature range of –40°C to 85°C for the target application environment.

Selection Notes

Select this component when a 10-bit DAC with an integrated low-drift reference is required in a compact TSOT-23 package. Ensure the system supply voltage remains within the 2.7V to 5.5V range. Verify that the mid-scale power-on reset behavior aligns with system initialization requirements, as zero-scale options are available in other variants.

Part Context

This part belongs to the LTC2631 family of single-channel DACs. The 'LM10' designation specifies a 10-bit resolution, 2.5V full-scale internal reference, and mid-scale power-on reset. The 'ITS8' indicates the Industrial temperature grade (-40°C to 85°C) and the 8-lead TSOT-23 package type.

Replacement Considerations

Other members of the LTC2631 family, such as the LTC2631ITS8-LZ10#TRMPBF, offer identical electrical performance but differ in power-on reset behavior (zero-scale vs. mid-scale). Substitution requires verifying that the reset state difference does not impact system safety or operation.