MAX5894EGK+D

Digital To Analog Converters Overview

The MAX5894EGK+D is a dual, 14-bit digital-to-analog converter (DAC) with a maximum update rate of 500Msps. It integrates selectable 2x/4x/8x interpolating filters and a digital quadrature modulator. The device features a standard 1.8V CMOS data input bus that is 3.3V tolerant, alongside a 3.3V SPI-compatible serial interface for configuration. Operating from -40°C to +85°C in a 68-pin QFN-EP package, it delivers an in-band SFDR of 86dBc at 30MHz output frequency and consumes 1.1W at full speed.

Digital To Analog Converters Feature Summary

• Integrates programmable 2x, 4x, or 8x linear-phase interpolation filters to reduce input data rates while maintaining high DAC update speeds.
• Includes a digital quadrature modulator with selectable image-rejection modes at fIM/2 or fIM/4 for direct upconversion architectures.
• Provides individual channel gain and offset programmability to calibrate local oscillator feedthrough and sideband suppression errors.
• Features separate analog and digital power supplies to minimize noise coupling between sections.

Digital To Analog Converters Applications

• Base Stations: 3G UMTS, CDMA, and GSM
• Broadband Wireless Transmitters
• Broadband Cable Infrastructure
• Instrumentation and Automatic Test Equipment (ATE)
• Analog Quadrature Modulation Architectures

Digital To Analog Converters Procurement Notes

Verify the ordering suffix '+D' indicates a dry-pack configuration suitable for moisture-sensitive devices. Confirm the '+' suffix denotes lead-free and RoHS compliance as specified in the datasheet. Ensure the 68-pin QFN-EP package matches the target PCB footprint and thermal requirements. Cross-reference the specific revision number on the component marking against the latest Analog Devices documentation.

Digital To Analog Converters Selection Notes

Select this part when a 14-bit resolution is required for wideband single-carrier transmit applications. Consider the MAX5893 if 12-bit resolution suffices, or the MAX5895 for 16-bit precision. Verify that the CMOS input logic levels are compatible with the host processor. Evaluate the need for the integrated digital modulator versus external analog upconversion stages.

Digital To Analog Converters Part Context

The MAX5894 belongs to a family of high-speed interpolating DACs from Maxim Integrated. Pin-compatible variants include the 12-bit MAX5893 and the 16-bit MAX5895. These devices share similar architectural features but differ in resolution and dynamic performance specifications. The MAX5898 offers a similar update rate but utilizes LVDS inputs instead of CMOS.

Digital To Analog Converters Replacement Considerations

Pin-compatible alternatives include the MAX5893 (12-bit) and MAX5895 (16-bit). Verify that the resolution and dynamic performance metrics of the substitute meet the system requirements before implementation.