LTC2632HTS8-LI8#TRMPBF

Overview

The LTC2632HTS8-LI8#TRMPBF is a dual 8-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. 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 voltage ranging from 2.7V to 5.5V. It utilizes a 3-wire SPI/MICROWIRE compatible serial interface for communication, supporting clock rates up to 50MHz. The part includes power-on reset circuitry that sets the output to mid-scale in internal reference mode upon startup. It is housed in an 8-lead TSOT-23 package.

Feature Summary

• Dual 8-bit DACs with integrated 2.5V full-scale reference
• 10ppm/°C reference temperature coefficient
• SPI/MICROWIRE compatible 3-wire serial interface
• Power-on reset to mid-scale in internal reference mode

Applications

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

Procurement Notes

Verify the specific ordering suffix #TRMPBF indicates a 500-piece tape and reel packaging configuration. Confirm the H-grade designation corresponds to the automotive temperature range of -40°C to 125°C as defined in the selection guide. Ensure compatibility with the required supply voltage range of 2.7V to 5.5V for the L-series internal reference specifications.

Selection Notes

Select this component when a dual-channel, low-resolution DAC with an integrated reference is required. The LI suffix specifies a power-on reset to mid-scale using the internal reference. For applications requiring zero-scale reset, consider the LZ suffix variants. Verify that the 8-bit resolution meets the system accuracy requirements, as higher precision options are available in the 10-bit and 12-bit configurations within the same family.

Part Context

This part belongs to the LTC2632 family of dual DACs, which offers various combinations of resolution (8, 10, or 12 bits), power-on reset behaviors, and full-scale voltages (2.5V or 4.096V). The HTS8 designation identifies the H-grade temperature range and the 8-lead TSOT-23 package type. Other variants include the C-grade commercial version and different reset options like LX for external reference mid-scale reset.

Replacement Considerations

Direct substitutes within the same package and pinout include other LTC2632 variants such as LTC2632HLS8-LI8#TRMPBF for zero-scale reset or LTC2632HIS8-LI8#TRMPBF for 12-bit resolution. Cross-family replacements require verification of pin compatibility and electrical parameter alignment.