LTC2630ACSC6-HM12

Overview

The LTC2630ACSC6-HM12 is a single-channel, 12-bit voltage-output digital-to-analog converter housed in a 6-lead SC70 package. It features an integrated precision reference providing a full-scale output of 4.096V and operates from a 4.5V to 5.5V supply. The device includes a rail-to-rail output buffer with guaranteed monotonicity and maximum integral nonlinearity of ±1 LSB. It utilizes a 3-wire SPI/MICROWIRE compatible serial interface supporting clock rates up to 50MHz. Power-on reset options allow the output to initialize at mid-scale or zero scale.

Feature Summary

• Integrated 4.096V precision reference with 10ppm/°C temperature coefficient
• 12-bit resolution with ±1 LSB maximum INL error
• Rail-to-rail output buffer capable of driving capacitive loads up to 500pF
• Selectable internal reference or supply-as-reference mode
• Power-on reset to mid-scale (suffix M) or zero-scale (suffix Z)

Applications

• Mobile communications systems
• Process control and industrial automation
• Automatic test equipment
• Portable battery-powered equipment
• Automotive electronics

Procurement Notes

Verify the complete part number against the manufacturer's ordering guide to confirm specific suffixes for resolution, power-on reset behavior, and temperature grade. The 'A' grade indicates tighter linearity specifications compared to standard grades. Confirm packaging details such as tape and reel quantities if applicable to the specific order code suffix.

Selection Notes

Select this component when a compact 12-bit DAC with high accuracy is required in space-constrained designs. The HM12 variant specifically provides a 4.096V full-scale range and resets to mid-scale upon power-up. Ensure the system supply voltage remains within the 4.5V to 5.5V range specified for the H-grade devices. Consider the C, I, or H temperature grades based on the operating environment requirements.

Part Context

This part belongs to the LTC2630 family of single-channel DACs available in 8-, 10-, and 12-bit resolutions. The family shares a common 6-lead SC70 package and SPI interface architecture. Variations exist between L-grade (2.5V FS, 2.7V–5.5V supply) and H-grade (4.096V FS, 4.5V–5.5V supply) devices. The ACSC6 designation specifies the A electrical grade, Commercial temperature range, SC70 package, and specific configuration suffixes.

Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source documentation. When evaluating alternatives, ensure compatibility with the 3-wire SPI interface, 12-bit resolution, SC70 package dimensions, and supply voltage requirements.