LTC2633HTS8-HI12#TRMPBF

Overview

The LTC2633HTS8-HI12#TRMPBF 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 with a full-scale output of 4.096V and operates on a single 4.5V to 5.5V supply. The device 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. Power-on reset options allow initialization to mid-scale.

Feature Summary

• Dual 12-bit DACs with integrated 4.096V precision reference (±10ppm/°C drift)
• Maximum INL error of ±1.5 LSB for high accuracy
• Rail-to-rail output buffers with low noise (750µVP-P, 0.1Hz to 200kHz)
• Guaranteed monotonic operation across –40°C to 125°C temperature range

Applications

• Mobile communications systems
• Process control and industrial automation
• Power supply margining
• Portable equipment
• Automotive applications

Procurement Notes

Verify the #TRMPBF suffix indicates a 500-unit tape and reel packaging configuration, distinct from the standard 2,500-unit reel. Confirm the H-grade designation corresponds to the automotive temperature range of –40°C to 125°C. Ensure the HI12 code specifies the internal reference mode with power-on reset to mid-scale. Cross-reference the specific lot date code against current lifecycle notices to confirm active manufacturing status.

Selection Notes

Select this part when a dual-channel 12-bit DAC requires a 4.096V full-scale range powered by a 4.5V to 5.5V supply. The HI12 variant is appropriate if mid-scale initialization upon power-up is required. Consider the TSOT-23 package constraints for thermal management and PCB space. Verify that the I²C address configuration via the CA0 pin aligns with the system bus topology.

Part Context

This component belongs to the LTC2633 family of dual DACs, which also includes variants with 2.5V full-scale outputs (L-grade) and different resolutions (8-bit, 10-bit). The 'A' grade denotes improved linearity performance compared to standard grades. The HTS8 package identifier confirms the 8-lead ThinSOT form factor designed for compact surface-mount applications.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Engineering changes or obsolescence notices should be consulted directly from Analog Devices for potential replacement strategies.