AD9777BSVZ

Digital To Analog Converters Overview

The AD9777BSVZ is a 16-bit, dual-channel digital-to-analog converter (DAC) from Analog Devices. It supports input data rates up to 160 MSPS and output update rates up to 400 MSPS. The device features selectable 2×, 4×, or 8× interpolation filters and an internal PLL clock multiplier. It operates on a single 3.1 V to 3.5 V supply with typical power dissipation of 1.2 W. Key specifications include ±6 LSB INL, ±3 LSB DNL, and a full-scale output current range of 2 mA to 20 mA. The component is housed in an 80-lead thin quad flat package with an exposed pad.

Digital To Analog Converters Feature Summary

• 16-bit resolution with 400 MSPS maximum DAC conversion rate
• Selectable 2×/4×/8× interpolating half-band filters
• Internal programmable PLL clock multiplier and divider
• Programmable channel gain control (±1 dB) and offset adjustment (±10% FSR)
• On-chip 1.2 V temperature-compensated bandgap voltage reference

Digital To Analog Converters Applications

• Wideband CDMA and multicarrier CDMA systems
• Multicarrier GSM and TDMA base stations
• Direct IF transmission for frequencies above 70 MHz
• Analog quadrature modulation architectures with image rejection

Digital To Analog Converters Procurement Notes

Verify the specific suffix 'B' against the manufacturer's ordering guide to confirm performance grade and revision status. Confirm that the package variant matches the 80-lead TQFP_EP outline dimensions specified in the datasheet. Ensure compatibility with the required SPI interface configuration for register programming.

Digital To Analog Converters Selection Notes

Select this component when system requirements demand high linearity (SFDR > 73 dBc) and flexible clocking options. The internal PLL allows operation with lower-frequency external clocks while achieving high DAC update rates. Consider the 1.2 W power consumption and thermal resistance of 23.5°C/W for adequate heat sinking design.

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, offering enhanced dynamic performance compared to lower-resolution variants. The device integrates digital modulation capabilities to simplify transmitter signal chains by reducing the need for external mixers and SAW filters.

Digital To Analog Converters Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.