AD9779ABSVZ

Digital To Analog Converters Overview

The AD9779ABSVZ is a dual, 16-bit, high dynamic range digital-to-analog converter (DAC) from Analog Devices Inc., operating at a sample rate of 1 GSPS. It features an internal reference voltage of 1.2 V and supports analog supply voltages of 3.13 V to 3.47 V for AVDD33/DVDD33, and 1.70 V to 2.05 V for DVDD18/CVDD18. The device provides adjustable full-scale output currents ranging from 8.66 mA to 31.66 mA with a typical value of 20.2 mA. Key performance metrics include a differential nonlinearity (DNL) of ±2.1 LSB and integral nonlinearity (INL) of ±6.0 LSB. It utilizes a 100-lead exposed paddle TQFP package.

Digital To Analog Converters Feature Summary

• Dual-channel architecture with 16-bit resolution and 1 GSPS maximum sampling rate.
• Integrated 2×, 4×, and 8× interpolator/coarse complex modulator for flexible carrier placement.
• Internal digital inverse sinc filter and programmable gain/offset correction capabilities.
• Low power consumption of 1.0 W at 1 GSPS under full operating conditions.

Digital To Analog Converters Applications

• Wireless infrastructure systems including W-CDMA, CDMA2000, TD-SCDMA, WiMax, GSM, and LTE.
• Digital high or low intermediate frequency (IF) synthesis.
• Transmit diversity and wideband communications such as LMDS/MMDS and point-to-point links.

Digital To Analog Converters Procurement Notes

Verify the specific ordering suffix 'SVZ' against the manufacturer's current data sheet to confirm package type and temperature grade. Ensure compatibility with the required 3-wire serial interface timing specifications during integration planning.

Digital To Analog Converters Selection Notes

Select this component when 16-bit resolution and 1 GSPS throughput are required for direct conversion transmit applications. Consider the internal PLL clock multiplier if external clock multiplication is desired, and verify that the host system can support the necessary CMOS data input interface timing constraints.

Digital To Analog Converters Part Context

This part belongs to the AD9776A/AD9778A/AD9779A family of dual DACs. While sharing the same package and core architecture, the AD9779A is distinguished by its 16-bit resolution, whereas the AD9776A offers 12 bits and the AD9778A offers 14 bits. All variants share similar power consumption profiles and feature sets.

Digital To Analog Converters Replacement Considerations

The AD9779BSVZ is a documented alternative within the same product family offering identical pinout and functionality but potentially different performance grades or manufacturing revisions. Verify register compatibility and electrical specifications before substitution.