LTC2633HTS8-LO10#TRMPBF

Overview

The LTC2633HTS8-LO10#TRMPBF is a dual 10-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 operates on a single 2.7V to 5.5V supply. The device utilizes a 2-wire I2C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Key specifications include rail-to-rail output buffers, guaranteed monotonicity over the –40°C to 125°C temperature range, and a power-on reset configuration that sets outputs to high impedance. The part is housed in an 8-lead TSOT-23 package.

Feature Summary

• Dual 10-bit DACs with integrated 2.5V full-scale precision reference
• I2C-compatible serial interface with standard and fast mode support
• Power-on reset to high impedance state for safe initialization
• Rail-to-rail output buffers guaranteed monotonic over –40°C to 125°C

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 option, distinct from the standard 2,500-unit reel. Confirm the LO10 code corresponds to the 10-bit resolution with high-impedance power-on reset behavior as defined in the manufacturer's selection guide.

Selection Notes

Select this variant when a high-impedance power-on state is required to prevent unintended signal driving during system startup. Ensure the supply voltage remains within the 2.7V to 5.5V range suitable for the 2.5V full-scale internal reference. Verify that the I2C bus timing requirements align with the specified clock frequencies.

Part Context

This component belongs to the LTC2633 family of dual DACs, which offers various combinations of resolution, reset behaviors, and full-scale voltages. The 'H' denotes the automotive temperature grade (-40°C to 125°C), while 'L' specifies the 2.5V internal reference. The 'O' code specifically configures the power-on reset to place DAC outputs in a high-impedance state.

Replacement Considerations

Direct replacements within the same family include LTC2633HTS8-LI10#TRMPBF or LTC2633HTS8-LZ10#TRMPBF, differing primarily in their power-on reset states (mid-scale or zero-scale). Cross-family substitutes like the LTC2635 offer quad channels but require different pinout and software considerations.