LTC2633HTS8-LI10#TRMPBF

Overview

The LTC2633HTS8-LI10#TRMPBF is a dual 10-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 voltage ranging from 2.7V to 5.5V and communicates via a 2-wire I²C-compatible serial interface supporting standard (100kHz) and fast (400kHz) modes. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±1 LSB, a supply current of 0.4mA at 3V, and guaranteed monotonicity over the –40°C to 125°C temperature range.

Feature Summary

• Dual 10-bit DACs with rail-to-rail output buffers and integrated 2.5V precision reference
• I²C-compatible serial interface with selectable internal or external reference input
• Power-on reset configured to mid-scale in internal reference mode
• Guaranteed monotonic operation across –40°C to 125°C temperature range

Applications

• Mobile communications systems
• Process control and industrial automation
• Portable equipment requiring low power consumption
• Automotive electronic applications

Procurement Notes

Verify the #TRMPBF suffix indicates a 500-unit tape and reel packaging configuration. Confirm the LI10 designation corresponds to the 10-bit resolution variant with internal reference and mid-scale power-on reset behavior. Ensure the HTS8 package type matches the required 8-lead TSOT-23 footprint for PCB layout compatibility.

Selection Notes

Select this part when a dual-channel DAC with 10-bit resolution and an integrated 2.5V reference is required. The 'H' grade ensures operation from –40°C to 125°C, suitable for automotive or harsh industrial environments. Choose this model over the 'L' grade if extended temperature performance is necessary, noting that the 'H' grade requires a minimum supply voltage of 4.5V for specified performance in some contexts, though the datasheet lists 2.7V to 5.5V for the family generally; verify specific voltage requirements against the H-grade section of the datasheet.

Part Context

This component belongs to the LTC2633 family of dual DACs, which offers various combinations of resolution (8-, 10-, 12-bit), accuracy grades ('A' for ±1.5LSB INL, standard for ±1LSB or ±2.5LSB), and power-on reset options. The 'LI10' code specifies the 10-bit resolution, internal reference mode, and mid-scale reset configuration within the high-temperature 'H' grade series.

Replacement Considerations

Direct replacements within the same family include LTC2633HTS8-LI12#TRMPBF for 12-bit resolution or LTC2633HTS8-LX10#TRMPBF for external reference operation. Verify pinout compatibility and software register mapping when substituting between different resolutions or reset configurations.