LTC2633HTS8-LI12#TRPBF

Overview

The LTC2633HTS8-LI12#TRPBF is a dual 12-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 providing a 2.5V full-scale output with 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 ±1.5 LSB, rail-to-rail output buffers, and guaranteed monotonicity over the –40°C to 125°C temperature range.

Feature Summary

• Dual 12-bit resolution with integrated 2.5V precision reference (10ppm/°C drift)
• Maximum INL error of ±1.5 LSB for high accuracy
• Rail-to-rail output buffers with guaranteed monotonicity 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
• Power supply margining
• Portable equipment
• Automotive applications

Procurement Notes

Verify the specific ordering suffix #TRPBF corresponds to the 2,500-piece tape and reel packaging format as defined in the manufacturer's documentation. Confirm that the 'H' grade designation matches the required automotive temperature range of –40°C to 125°C for the target application environment.

Selection Notes

Select this part when a dual-channel DAC with a fixed 2.5V internal reference is required. The 'I' power-on reset code ensures outputs initialize to mid-scale upon power-up. Ensure the system supply voltage remains within the 2.7V to 5.5V range specified for the 'L' full-scale variant. Verify I²C address configuration via the CA0 pin if multiple devices are present on the bus.

Part Context

This component belongs to the LTC2633 family of dual DACs, which also includes variants with 10-bit and 8-bit resolutions, different full-scale voltages (such as 4.096V), and alternative power-on reset behaviors. The 'A' electrical grade indicates tighter linearity specifications compared to standard grades, while the 'H' temperature grade extends operational limits for harsh environments.

Replacement Considerations

Direct functional substitutes within the same package and specification profile include other LTC2633 variants such as LTC2633HTS8-LZ12#TRPBF or LTC2633HTS8-HI12#TRPBF, provided the power-on reset behavior and full-scale voltage requirements align with the design constraints.