AD9774ASZ

Digital To Analog Converters Overview

The AD9774ASZ is a single-supply, oversampling, 14-bit digital-to-analog converter (DAC) optimized for waveform reconstruction applications requiring exceptional dynamic range. Manufactured on an advanced CMOS process, it integrates a complete, low distortion 14-bit DAC with a 4x digital interpolation filter and clock multiplier. The two-stage, 4x digital interpolation filter provides more than a six-fold reduction in the complexity of the analog reconstruction-filter. It does so by multiplying the input data rate by a factor of four while simultaneously suppressing the original inband images by more than 69 dB. The on-chip clock multiplier provides all the necessary clocks. The AD9774 can reconstruct full-scale waveforms having bandwidths as high as 13.5 MHz when operating at an input data rate of 32 MSPS and a DAC output rate of 128 MSPS.

Digital To Analog Converters Feature Summary

• 14-Bit DAC Resolution and Input Data Width
• 32 MSPS Input Data Rate at 5 V
• 13.5 MHz Reconstruction Bandwidth
• 43 Interpolation Filter

Digital To Analog Converters Applications

• Communication Transmit Channel: Wireless Basestations
• ADSL/HFC Modems
• Direct Digital Synthesis (DDS)

Digital To Analog Converters Procurement Notes

Verify the specific ordering suffix 'ASZ' against the manufacturer's official documentation to confirm package type and temperature range specifications. Ensure compatibility with system power supply requirements and interface logic levels before procurement.

Digital To Analog Converters Selection Notes

Select this component for applications requiring high dynamic range and low spurious performance in waveform reconstruction. Consider the integrated 4x interpolation filter to simplify external analog reconstruction filter design. Verify that the required input data rate does not exceed 32 MSPS at 5V operation.

Digital To Analog Converters Part Context

The AD9774 is part of Analog Devices' TxDAC+ family of high-performance digital-to-analog converters. This series is designed for communication systems and other applications demanding precise signal generation and reconstruction capabilities.

Digital To Analog Converters Replacement Considerations

Consult official cross-reference tools or distributor databases for parametrically similar components. Verify pinout compatibility, resolution, and speed specifications before considering alternative parts.