LTC2632CTS8-LX8#TRPBF

Overview

The LTC2632CTS8-LX8#TRPBF is a dual 8-bit voltage-output digital-to-analog converter (DAC) in an 8-lead TSOT-23 package. It features an integrated reference with 10ppm/°C drift and operates from a single 2.7V to 5.5V supply. The device uses a 3-wire SPI/MICROWIRE interface with clock rates up to 50MHz. Key electrical parameters include ±1 LSB differential nonlinearity, ±1 LSB integral nonlinearity, and a typical supply current of 0.4mA at 3V. The output buffers are rail-to-rail and guaranteed monotonic.

Feature Summary

• Dual 8-bit DACs with integrated 2.5V full-scale reference
• SPI/MICROWIRE compatible 3-wire serial interface
• Rail-to-rail output buffers with guaranteed monotonicity
• Power-on reset to mid-scale in external reference mode

Applications

• Mobile communications
• Process control and industrial automation
• Automatic test equipment
• Portable equipment
• Automotive systems

Procurement Notes

Verify the specific ordering suffix #TRPBF indicates a tape and reel packaging configuration containing 2,500 pieces. Confirm the LX suffix corresponds to external reference mode selection with mid-scale power-on reset behavior as defined in the manufacturer's part marking guide. Ensure compatibility with the required supply voltage range of 2.7V to 5.5V for the L-grade variant.

Selection Notes

Select this component when dual low-resolution DAC outputs are required in a compact TSOT-23 footprint. The LX suffix designates operation with an external reference voltage applied to the REF pin, setting the full-scale output to that external voltage rather than the internal 2.5V source. This option is suitable for systems requiring flexible full-scale ranges or synchronization with other reference-driven components.

Part Context

This part belongs to the LTC2632 family, which includes 12-, 10-, and 8-bit variants. The 'L' designation indicates a 2.5V full-scale internal reference capability, while 'H' denotes 4.096V. The 'X' power-on reset code specifies mid-scale initialization when using an external reference. The 'TS8' package identifies the 8-lead ThinSOT form factor.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pinout and electrical specifications against alternative dual DACs if cross-referencing is necessary.