LTC2634CUD-LMX10#PBF

Overview

The LTC2634CUD-LMX10#PBF is a quad 10-bit voltage-output digital-to-analog converter (DAC) from Analog Devices. It features an integrated precision reference with a full-scale output of 2.5V and operates on a single 2.7V to 5.5V supply. The device utilizes a 3-wire SPI/MICROWIRE compatible interface with clock rates up to 50MHz. Key electrical specifications include a maximum integral nonlinearity (INL) error of ±1 LSB, a settling time of 3.8µs at 3V, and a typical supply current of 0.6mA. It incorporates double-buffered data latches and offers power-on reset to mid-scale in external reference mode.

Feature Summary

• Quad 10-bit resolution with rail-to-rail buffered outputs
• Integrated 10ppm/°C precision reference yielding 2.5V full-scale output
• Power-on reset configured for mid-scale output in external reference mode
• Ultralow DAC-to-DAC crosstalk of 2.4nV•s typical

Applications

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

Procurement Notes

Verify the specific ordering suffix LMX10#PBF against the manufacturer's official documentation to confirm the power-on reset behavior and reference mode configuration. Ensure the component meets the required commercial temperature range specifications for the intended application environment.

Selection Notes

Select this part when a quad-channel DAC with low power consumption and high accuracy is required. The LMX suffix indicates a mid-scale reset in external reference mode; choose LZ or MI suffixes if zero-scale or internal reference mid-scale resets are needed instead. Verify that the 2.5V internal full-scale range suits the system requirements.

Part Context

This component belongs to the LTC2634 family of quad DACs available in 12-, 10-, and 8-bit resolutions. The C grade denotes the commercial temperature range (0°C to 70°C), while the UD package identifies the 16-lead 3mm × 3mm QFN form factor. The #PBF suffix confirms lead-free construction compliant with RoHS standards.

Replacement Considerations

Direct replacements within the same family include LTC2634CUD-LMI10#PBF and LTC2634CUD-LZ10#PBF. These variants share identical pinouts and electrical characteristics but differ in their power-on reset configurations.