AD9780BCPZ

Digital To Analog Converters Overview

The AD9780BCPZ is a dual-channel, 12-bit digital-to-analog converter (DAC) from Analog Devices. It supports sampling rates up to 500 MSPS with LVDS data inputs and differential analog current outputs. The device features programmable full-scale output currents ranging from 8.6 mA to 31.7 mA and includes auxiliary 10-bit DACs for external offset nulling. Powered by 1.8 V and 3.3 V supplies, it dissipates approximately 315 mW at maximum sample rate. Key performance metrics include a typical Spurious Free Dynamic Range (SFDR) of 78 dBc at 20 MHz output and low noise spectral density.

Digital To Analog Converters Feature Summary

• Dual 12-bit resolution with 500 MSPS maximum sampling rate
• LVDS interface supporting dual-port or interleaved single-port operation
• Programmable differential current outputs (8.6 mA to 31.7 mA)
• Internal 1.2 V precision reference voltage source

Digital To Analog Converters Applications

• Wireless infrastructure (W-CDMA, CDMA2000, TD-SCDMA, WiMAX)
• Wideband communications (LMDS/MMDS, point-to-point)
• RF signal generators and arbitrary waveform generators

Digital To Analog Converters Procurement Notes

Verify the specific suffix BCPZ against the manufacturer's ordering guide to confirm package type and temperature range. Ensure compatibility with the required LVDS input levels and supply voltages (1.8 V and 3.3 V). Confirm that the 72-lead LFCSP footprint matches the PCB layout constraints.

Digital To Analog Converters Selection Notes

Select the AD9780BCPZ when 12-bit resolution is sufficient for the application, as opposed to the pin-compatible AD9781 (14-bit) or AD9783 (16-bit). Consider the mix mode capability if operating above the Nyquist frequency is required. Verify that the internal reference meets system accuracy requirements or plan for an external reference if higher precision is needed.

Digital To Analog Converters Part Context

The AD9780 is part of a family of high dynamic range, dual DACs including the AD9781 and AD9783. These devices share pin compatibility and similar architectures but differ in resolution (12-bit, 14-bit, and 16-bit respectively). They are designed for direct conversion transmit applications and interface seamlessly with analog quadrature modulators.

Digital To Analog Converters Replacement Considerations

Pin-compatible alternatives within the same family include the AD9781 (14-bit) and AD9783 (16-bit). These offer higher resolution but may have different power consumption and performance characteristics. No other cross-family replacements are confirmed in the provided documentation.