LTC2656CCFE-L16#TRPBF

Overview

The LTC2656CCFE-L16#TRPBF is an octal 16-bit voltage-output digital-to-analog converter (DAC) from Analog Devices Inc. It features a precision integrated reference with a maximum temperature coefficient of 10ppm/°C and rail-to-rail output buffers. The device operates on a single 2.7V to 5.5V supply, providing a full-scale output of 2.5V in internal reference mode. It communicates via a SPI/MICROWIRE compatible 4-wire serial interface with clock rates up to 50MHz. The part is housed in a 20-lead thermally enhanced TSSOP package and is guaranteed monotonic over the commercial temperature range of 0°C to 70°C.

Feature Summary

• Octal 16-bit resolution with ±12 LSB 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 that the specific ordering suffix #TRPBF corresponds to the tape and reel packaging format as defined in the manufacturer's documentation. Confirm the C-grade electrical specifications match the required integral nonlinearity performance for the target application before finalizing procurement.

Selection Notes

Select this component when eight independent 16-bit DAC channels are required within a compact footprint. The C-grade variant offers ±12 LSB INL, which is suitable for general-purpose applications where the higher accuracy B-grade (±4 LSB) is not strictly necessary. Ensure the system power supply remains within the 2.7V to 5.5V range for proper operation of the -L option.

Part Context

This part belongs to the LTC2656 family of octal DACs, which also includes 12-bit variants and industrial temperature grade options. The 'CC' designation indicates the commercial temperature range and C-grade linearity, while 'FE' specifies the 20-lead thermally enhanced TSSOP package. The '#TRPBF' suffix denotes lead-free construction and tape-and-reel shipping.

Replacement Considerations

Direct pin-compatible replacements within the same package include other LTC2656 variants such as the LTC2656BCFE-L16#TRPBF for improved linearity or the LTC2656CUFD-L16#TRPBF for QFN packaging. Verify that any substitute maintains the required 16-bit resolution and serial interface compatibility.