LTC2631HTS8-HM10#TRPBF

Overview

The LTC2631HTS8-HM10#TRPBF 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 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 bidirectional reference capabilities. The part is housed in an 8-lead TSOT-23 package and includes power-on reset logic configured to initialize the output to mid-scale.

Feature Summary

• 10-Bit Resolution with ±1 LSB Maximum INL Error
• Integrated 4.096V Reference with 10ppm/°C Temperature Coefficient
• I²C Interface Supporting 400kHz Clock Rate
• Power-On Reset to Mid-Scale Configuration

Applications

• Mobile Communications
• Process Control and Industrial Automation
• Portable Equipment

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates a 2,500-piece tape and reel packaging format as defined in the manufacturer documentation. Confirm that the H-grade designation corresponds to the automotive temperature range of –40°C to 125°C. Ensure the HM10 suffix correctly identifies the 4.096V full-scale voltage and mid-scale power-on reset behavior before procurement.

Selection Notes

Select this component when a 10-bit resolution is sufficient for the application, offering a balance between performance and cost compared to 12-bit variants. The H-grade temperature rating (-40°C to 125°C) is required for automotive or harsh industrial environments. The mid-scale power-on reset option is suitable for systems where a zero-voltage startup is not mandatory, reducing potential transient issues during initialization.

Part Context

This part belongs to the LTC2631 family of single-channel DACs, which also includes 8-bit and 12-bit resolutions. Variants within the family differ by full-scale voltage (2.5V for L-grade, 4.096V for H-grade), power-on reset behavior (Zero vs. Mid-Scale), and accuracy grades (Standard vs. A-grade). The HTS8 package denotes the 8-lead ThinSOT form factor used across the series.

Replacement Considerations

Direct pin-compatible replacements within the same package include other LTC2631 variants such as LTC2631HTS8-LM10#TRPBF (2.5V FS) or LTC2631HTS8-HZ10#TRPBF (Zero-reset). Cross-family alternatives like the LTC2640 series require SPI interface adaptation.