LTC2632HTS8-LI8#TRPBF

Overview

The LTC2632HTS8-LI8#TRPBF is a dual 8-bit voltage-output digital-to-analog converter (DAC) from Analog Devices, housed in an 8-lead TSOT-23 package. It features an integrated precision reference with a full-scale output of 2.5V and a temperature coefficient of 10ppm/°C. The device operates on a single supply ranging from 2.7V to 5.5V and communicates via a 3-wire SPI/MICROWIRE compatible interface supporting clock rates up to 50MHz. It includes rail-to-rail output buffers, guaranteed monotonicity, and a power-on reset function that initializes outputs to mid-scale in internal reference mode.

Feature Summary

• Dual 8-bit DACs with integrated 2.5V full-scale reference (10ppm/°C)
• Rail-to-rail output buffers with ±0.5LSB maximum INL
• 3-wire SPI/MICROWIRE serial interface with 50MHz clock capability
• Power-on reset to mid-scale in internal reference mode

Applications

• Mobile communications
• Process control and industrial automation
• Automatic test equipment
• Portable equipment
• Automotive systems

Procurement Notes

Verify the specific ordering suffix #TRPBF corresponds to the tape and reel packaging configuration required for automated assembly. Confirm that the LI designation matches the intended power-on reset behavior (mid-scale in internal reference mode). Ensure the component meets the required automotive temperature range specifications if deployed in such environments.

Selection Notes

Select this part when a compact dual-channel solution with low integral nonlinearity error is required. The 8-bit resolution offers faster settling times compared to higher-resolution variants. Consider the external reference option if a different full-scale voltage than 2.5V is needed, or if system-level reference sharing is preferred over the internal integrated source.

Part Context

This component belongs to the LTC2632 family, which provides various combinations of resolution (8, 10, 12-bit), accuracy grades, and power-on reset options. The HTS8 suffix indicates the Automotive temperature grade (-40°C to 125°C) and the TSOT-23 package type. The LI code specifies the mid-scale reset behavior for internal reference operation upon power-up.

Replacement Considerations

Direct substitutes within the same family include LTC2632HTS8-LX8#TRPBF (external reference reset) and LTC2632HTS8-LZ8#TRPBF (zero-scale reset). For different resolutions, consider LTC2632HTS8-LI10#TRPBF or LTC2632HTS8-LI12#TRPBF, noting changes in linearity specifications and settling times.