LTC2633HTS8-LX8#TRMPBF

Overview

The LTC2633HTS8-LX8#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 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 ±0.5 LSB, a settling time of 3.4µs at 3V, and a supply current of 0.4mA at 3V. The part includes double-buffered data latches and power-on reset functionality.

Feature Summary

• Dual-channel 8-bit resolution with rail-to-rail output buffers
• Integrated 2.5V precision reference with 10ppm/°C drift
• I²C interface with selectable internal or external reference input
• Power-on reset to mid-scale in external reference mode

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 configuration, distinct from the standard 2500-unit reel. Confirm the LX code corresponds to mid-scale reset in external reference mode and the H grade specifies the –40°C to 125°C automotive temperature range during acquisition.

Selection Notes

Select this variant for applications requiring 8-bit resolution with a 2.5V full-scale output and mid-scale initialization upon power-up when using an external reference. Ensure the system supply voltage remains within the 2.7V to 5.5V range and that the I²C bus timing meets the specified setup and hold requirements for reliable communication.

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-temperature grade (H) and the 8-lead TSOT-23 package type, while the LX8 suffix defines the specific reset behavior and 8-bit resolution configuration.

Replacement Considerations

Direct substitutes within the same family include LTC2633HTS8-LI8#TRMPBF for internal reference reset or LTC2633HTS8-LZ8#TRMPBF for zero-scale reset. Higher resolution variants such as the LTC2633HTS8-LX10#TRMPBF or LTC2633HTS8-LX12#TRMPBF are pin-compatible but offer increased bit depth.