LTC2633HTS8-HI10#TRPBF

Overview

The LTC2633HTS8-HI10#TRPBF is a dual-channel, 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. 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 specifications include rail-to-rail output buffers, guaranteed monotonicity over the –40°C to 125°C temperature range, and a power-on reset function that initializes outputs to mid-scale in internal reference mode.

Feature Summary

• Dual 10-bit DACs with integrated 4.096V precision reference (±10ppm/°C drift)
• Rail-to-rail output buffers with ±1 LSB INL error
• I²C interface with selectable power-on reset to mid-scale
• Operates from 4.5V to 5.5V supply with 0.5mA typical current consumption

Applications

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

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates a tape and reel packaging configuration containing 2,500 units. Confirm the H-grade designation corresponds to the automotive temperature range of –40°C to 125°C. Ensure the HI10 code matches the required 10-bit resolution and mid-scale power-on reset behavior for system initialization requirements.

Selection Notes

Select this component when a dual-channel DAC with high accuracy (±1 LSB INL) and low noise is required in a compact 8-lead TSOT-23 package. The 4.096V full-scale output is suitable for applications requiring higher dynamic range than the 2.5V variant. Verify that the system supply voltage remains within the 4.5V to 5.5V range to ensure specified performance and monotonicity.

Part Context

This part belongs to the LTC2633 family of dual DACs, which also includes 8-bit and 12-bit variants. The 'H' suffix denotes the automotive temperature grade, while 'I' specifies the mid-scale power-on reset option. The '10' indicates 10-bit resolution. Other family members include the LTC2633-L series for lower voltage operation and different reset configurations such as zero-scale or high-impedance states.

Replacement Considerations

Direct replacements within the same family include LTC2633HTS8-HI12#TRPBF for 12-bit resolution or LTC2633HTS8-HI8#TRPBF for 8-bit resolution, provided the pinout and interface remain compatible. Cross-family substitution requires verification of I²C address decoding and register mapping compatibility.