LTC2656CCFE-L16#PBF

Overview

The LTC2656CCFE-L16#PBF is an octal 16-bit voltage output digital-to-analog converter (DAC) in a 20-lead thermally enhanced TSSOP package. It features rail-to-rail output buffers and a precision integrated reference with a maximum temperature coefficient of 10ppm/°C. The device operates on a single 2.7V to 5.5V supply and communicates via a 4-wire SPI/MICROWIRE compatible serial interface with clock rates up to 50MHz. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±12LSB at 16 bits, a settling time of 8.9µs for 16-bit accuracy, and guaranteed monotonicity over the commercial temperature range of 0°C to 70°C.

Feature Summary

• Octal 16-bit resolution with ±12LSB maximum INL error
• Precision integrated reference with 10ppm/°C max temperature coefficient
• Rail-to-rail output buffers with ultralow crosstalk (<1nV•s)
• SPI/MICROWIRE compatible 4-wire serial interface operating up to 50MHz

Applications

• Mobile Communications
• Process Control and Industrial Automation
• Instrumentation
• Automatic Test Equipment
• Automotive

Procurement Notes

Verify the specific ordering suffix 'CCFE' corresponds to the Commercial temperature grade (0°C to 70°C), 16-bit resolution, ±12LSB INL, and Thermally Enhanced TSSOP package as defined in the manufacturer's selector guide. Confirm lead-free status and tape/reel availability if required for automated assembly processes.

Selection Notes

Select this part when eight independent 16-bit channels are required within a compact footprint. The C-grade offers a cost-effective solution for commercial applications where ±12LSB linearity is sufficient. Ensure the system power supply remains within the 2.7V to 5.5V range and that the thermal design accommodates the junction temperature limits specified for the TSSOP package.

Part Context

This component belongs to the LTC2656 family of octal DACs, which also includes variants with different resolutions (12-bit), accuracies (±4LSB B-grade), full-scale voltages (2.5V or 4.096V), and packages (QFN). The CC combination specifically denotes the commercial temperature grade and standard linearity specification within the 16-bit L-option subset.

Replacement Considerations

Direct pin-compatible alternatives within the same family include the LTC2656BCFE-L16#PBF for higher accuracy (±4LSB INL) and the LTC2656BIUFD-L16#PBF for industrial temperature range and QFN packaging. Verify that any substitute meets the specific INL and temperature requirements of the original design.