LTC2633HTS8-LI8#TRMPBF

Overview

The LTC2633HTS8-LI8#TRMPBF 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 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 ±2.5 LSB, a typical supply current of 0.4mA at 3V, and rail-to-rail output buffers that are guaranteed monotonic over the –40°C to 125°C temperature range.

Feature Summary

• Dual 8-bit DACs with integrated 2.5V precision reference (10ppm/°C drift)
• I²C compatible serial interface with standard and fast mode support
• Rail-to-rail output buffers guaranteed monotonic from –40°C to 125°C
• Power-on reset configured to mid-scale in internal reference mode

Applications

• Mobile communications systems
• Process control and industrial automation
• Portable equipment requiring low power consumption
• Automotive applications operating in extended temperature ranges

Procurement Notes

Verify the specific ordering suffix #TRMPBF indicates a 500-unit tape and reel packaging configuration. Confirm the 'H' grade designation aligns with the required automotive temperature range of –40°C to 125°C for the target application environment. Ensure the I²C address configuration via the CA0 pin matches the system bus requirements.

Selection Notes

Select this part when a compact dual-channel solution with an integrated reference is required for 8-bit resolution applications. The LI8 suffix specifies a 2.5V full-scale output with mid-scale power-on reset. Consider the LTC2633A variant if tighter linearity specifications (±1.5 LSB INL) are necessary, or the LTC2633-HI8/HZ8 variants if a 4.096V full-scale output is preferred.

Part Context

This component belongs to the LTC2633 family of dual DACs, which offers various combinations of resolution (8-, 10-, 12-bit), accuracy grades, and power-on reset options. The HTS8 designation identifies the high-grade temperature version in the thin plastic TSOT-23 package. The family shares a common pinout and I²C interface architecture, allowing for design flexibility across different voltage and accuracy requirements within the same footprint.

Replacement Considerations

Direct replacements within the same package and functionality include other LTC2633 variants such as LTC2633HTS8-LI12#TRMPBF for higher resolution or LTC2633HTS8-HI8#TRMPBF for different full-scale voltage. Verify that any substitute maintains the 8-lead TSOT-23 form factor and compatible I²C timing characteristics.