AD9777BSV

Digital To Analog Converters Overview

The AD9777BSV is a 16-bit, dual-channel digital-to-analog converter (DAC) from Analog Devices Inc., operating at a maximum update rate of 400 MSPS. It features selectable 2×/4×/8× interpolation filters and supports fS/2, fS/4, or fS/8 digital quadrature modulation with image rejection. The device includes programmable channel gain and offset adjustment, an internal PLL clock multiplier, and a single 3.3 V supply operation. Key electrical specifications include ±6 LSB INL, ±3 LSB DNL, and a typical settling time of 11 ns. It utilizes an 80-lead TQFP_EP package.

Digital To Analog Converters Feature Summary

• 16-bit resolution with 400 MSPS maximum DAC output update rate
• Selectable 2×/4×/8× interpolating half-band filters
• Digital quadrature modulation and image rejection capabilities
• Programmable channel gain (±6 dB range) and offset adjustment
• Internal 1.2 V bandgap voltage reference and PLL clock multiplier

Digital To Analog Converters Applications

• Wideband CDMA systems
• Multicarrier GSM and TDMA systems
• High-order QAM modulation schemes
• Direct IF transmission for frequencies above 70 MHz

Digital To Analog Converters Procurement Notes

Verify the specific suffix 'BSV' against the manufacturer's ordering guide to confirm package type and temperature range. Ensure compatibility with the 80-lead TQFP_EP footprint and exposed pad thermal requirements during procurement planning.

Digital To Analog Converters Selection Notes

Select this component for applications requiring high linearity and flexible digital filtering. Consider the 1.2 W power dissipation and verify that the system can support the required 3.1 V to 3.5 V supply rails. Evaluate if the integrated interpolation filters meet the reconstruction filter requirements for the target data rates.

Digital To Analog Converters Part Context

The AD9777 is part of the AD977x family of pin-compatible, high-performance interpolating DACs. It serves as the 16-bit member of this series, designed for wide dynamic range and multicarrier systems. The device shares architectural similarities with other members but offers specific resolution and performance characteristics tailored for complex modulation applications.

Digital To Analog Converters Replacement Considerations

Check the manufacturer's ordering guide for direct replacements or upgrades within the AD977x family. Verify pin compatibility and electrical parameter alignment before substituting with other models.