AD9777BSVRL

Digital To Analog Converters Overview

The AD9777BSVRL is a 16-bit, dual-channel digital-to-analog converter (DAC) from Analog Devices. It supports input and output data rates up to 400 MSPS with selectable 2×, 4×, or 8× interpolation filters. The device operates on a single 3.1 V to 3.5 V supply, consuming approximately 1.2 W of power at full scale. Key specifications include an integral nonlinearity of ±6 LSB, a differential nonlinearity of −6.5/+6.5 LSB, and a typical spurious-free dynamic range (SFDR) of 85 dBc. It features an internal 1.2 V reference, programmable channel gain and offset, and an integrated PLL clock multiplier.

Digital To Analog Converters Feature Summary

• 16-bit resolution with 400 MSPS maximum DAC update rate
• Selectable 2×/4×/8× interpolating half-band filters
• fS/2, fS/4, and fS/8 digital quadrature modulation capability
• Internal 1.2 V temperature-compensated voltage reference
• Programmable channel gain (±6 dB) and offset adjustment

Digital To Analog Converters Applications

• Wideband CDMA and multicarrier TDMA/GSM systems
• High-order QAM modulation schemes
• Direct IF transmission for frequencies above 70 MHz
• Multicarrier point-to-point microwave radios

Digital To Analog Converters Procurement Notes

Verify the specific suffix 'RL' indicates reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation. Ensure ESD precautions are observed during handling due to sensitivity. Check for availability of the AD9777-EBZ evaluation board for design validation.

Digital To Analog Converters Selection Notes

Select this component for applications requiring high linearity and flexible digital filtering. The internal PLL simplifies clocking requirements but requires verification against external clock sources if lower jitter is needed. Ensure the host processor supports the required SPI interface speed of up to 15 MHz for register configuration.

Digital To Analog Converters Part Context

The AD9777 is part of the AD977x family, which includes pin-compatible variants such as the AD9776A, AD9777, AD9778, and AD9779. These devices share similar form factors and control interfaces but differ in resolution and sampling rates. The AD9777 specifically targets the 16-bit performance tier within this series.

Digital To Analog Converters Replacement Considerations

Pin-compatible alternatives within the same package include the AD9776ABSVZRL (12-bit), AD9778BSVZRL (14-bit), and AD9779BSVZRL (14-bit). Verify that the lower resolution or different interpolation capabilities of these substitutes meet system requirements.