LTC2633CTS8-LI12#TRPBF

Overview

The LTC2633CTS8-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 2.7V to 5.5V supply 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 commercial temperature range of 0°C to 70°C.

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
• 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

Procurement Notes

Verify the specific suffix #TRPBF indicates a tape and reel packaging format containing 2,500 pieces. Confirm the 'C' grade designation aligns with the required commercial operating temperature range of 0°C to 70°C. Ensure the LI12 code corresponds to the 2.5V full-scale voltage and mid-scale power-on reset configuration as specified in the selection guide.

Selection Notes

Select this part when a dual-channel DAC with an integrated reference is required in a compact TSOT-23 package. The 2.5V full-scale output is suitable for single-supply applications operating between 2.7V and 5.5V. Choose the 'A' electrical grade if the application demands the tighter ±1.5 LSB INL specification compared to the standard ±2.5 LSB available in other variants.

Part Context

This component belongs to the LTC2633 family of dual DACs, which also includes 10-bit and 8-bit resolutions, as well as variants with 4.096V full-scale outputs (H-grade). The LTS8 package denotes the 8-lead ThinSOT form factor. The LI12 designation specifically identifies the internal reference voltage setting and the power-on reset behavior distinct from other combinations like LZ12 (zero-scale reset) or HI12 (4.096V full-scale).

Replacement Considerations

Direct replacements within the same family include LTC2633CTS8-LZ12#TRPBF for zero-scale reset or LTC2633CTS8-HI12#TRPBF for 4.096V full-scale operation. Verify that the pinout remains identical across these variants, as they share the same TSOT-23 footprint and I²C interface logic.