AD9778ABSVZRL

Digital To Analog Converters Overview

The AD9778ABSVZRL is a dual-channel, 14-bit digital-to-analog converter (DAC) from the AD9778A series, manufactured by Analog Devices Inc. It operates at a maximum sample rate of 1 GSPS and utilizes an advanced 0.18 μm CMOS process. The device features a 100-lead thin quad flat package (TQFP) with an exposed paddle for thermal management. It requires 3.3 V analog/digital supplies and 1.8 V clock/digital supplies. Key specifications include ±0.65 LSB DNL and ±1.5 LSB INL. Power consumption reaches 1.0 W at full speed.

Digital To Analog Converters Feature Summary

• Dual 14-bit DACs with 1 GSPS sampling rate
• Integrated 2x, 4x, and 8x interpolator/coarse complex modulator
• Internal reference voltage of 1.2 V
• Programmable full-scale output current from 8.7 mA to 31.7 mA

Digital To Analog Converters Applications

• Wireless infrastructure base stations
• W-CDMA, CDMA2000, TD-SCDMA, WiMax, GSM, LTE transmitters
• Digital high or low IF synthesis
• Transmit diversity systems

Digital To Analog Converters Procurement Notes

Verify the specific suffix 'RL' indicates reel packaging against official documentation. Confirm the 'A' grade designation matches required performance tolerances such as DNL and INL limits. Ensure supply voltages align with the 3.3 V and 1.8 V requirements specified in the datasheet.

Digital To Analog Converters Selection Notes

Select this component when dual-channel 14-bit resolution at 1 GSPS is required. Consider the internal interpolators for reducing host data rates. Verify that the 100-lead TQFP package fits the PCB layout constraints. Check if auxiliary DACs are needed for external VGA control.

Digital To Analog Converters Part Context

This part belongs to the AD9776A/AD9778A/AD9779A family, differentiated primarily by resolution: 12-bit, 14-bit, and 16-bit respectively. All share the same 1 GSPS architecture and pinout. The AD9778A specifically targets applications requiring a balance between dynamic range and bandwidth.

Digital To Analog Converters Replacement Considerations

The AD9778BSVZRL is a non-A grade variant within the same family. Verify if performance differences in DNL/INL or temperature drift are acceptable for the application.