LTC2633HTS8-HI8#TRMPBF

Overview

The LTC2633HTS8-HI8#TRMPBF is a dual-channel, 8-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It integrates a high-accuracy internal reference with a temperature coefficient of 10ppm/°C and operates within an automotive temperature range of –40°C to 125°C. The device features rail-to-rail output buffers and communicates via a 2-wire I²C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. It requires a supply voltage between 4.5V and 5.5V for specified performance when using the internal reference.

Feature Summary

• Dual 8-bit DAC channels with integrated 10ppm/°C precision reference
• Automotive temperature grade (-40°C to 125°C)
• Rail-to-rail output buffers with guaranteed monotonicity
• Power-on reset configured to mid-scale in internal reference mode

Applications

• Mobile communications
• Process control and industrial automation
• Power supply margining
• Portable equipment
• Automotive systems

Procurement Notes

Verify the specific ordering suffix #TRMPBF indicates a 500-unit tape and reel packaging configuration. Confirm that the HI designation corresponds to the 4.5V to 5.5V supply range and 4.096V full-scale output. Ensure the component meets the required automotive temperature specifications for the target application environment.

Selection Notes

Select this part for applications requiring dual-channel output in a compact 8-lead TSOT-23 package. The HI suffix specifies operation from 4.5V to 5.5V with a 4.096V full-scale output. The I power-on reset code sets outputs to mid-scale upon startup. For lower voltage applications or different reset behaviors, consider other variants within the LTC2633 family.

Part Context

This component belongs to the LTC2633 family of dual DACs. The HTS8 suffix denotes the H-grade automotive temperature rating and the TSOT-23 package type. The HI12 structure indicates the 8-bit resolution, internal reference mode, and mid-scale reset option. This specific part number represents a specialized variant optimized for automotive environments with higher supply voltage requirements.

Replacement Considerations

Direct replacements include other LTC2633 variants with matching pinout and I²C interface. Verify that substitute parts support the 4.5V to 5.5V supply range and –40°C to 125°C operating temperature if automotive qualification is required. Check for compatibility with the mid-scale power-on reset behavior.