Overview
The AD9780BCPZ, produced by Analog Devices Inc., is a high-performance, dual digital-to-analog converter (DAC) with a 12-bit resolution. This component is part of the AD9780/AD9781/AD9783 family, which offers pin-compatible devices with varying resolutions. The AD9780BCPZ is designed for high dynamic range applications and supports sample rates of up to 500 MSPS. It features a Low-Voltage Differential Signaling (LVDS) interface and is particularly suited for direct conversion transmit applications in wireless infrastructure and wideband communications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 12 bits | |||
| Sample Rate | Up to 500 MSPS | |||
| DAC Clock Input (CLKP - CLKN) | 400 | 800 | 1600 | mV |
| Common-Mode Voltage | 300 | 400 | 500 | mV |
| Power Dissipation | 315 mW | |||
| Analog Supply Voltage (AVDD33) | 3.13 | 3.3 | 3.47 | V |
| Digital Supply Voltage (DVDD18) | 1.7 | 1.8 | 1.9 | V |
| Package Type | 72-Lead LFCSP (10mm x 10mm w/ EP) | |||
Key Features
- High dynamic range, dual DAC parts with low noise and intermodulation distortion
- LVDS inputs with dual-port or optional interleaved single-port operation
- Differential analog current outputs programmable from 8.6 mA to 31.7 mA full scale
- Auxiliary 10-bit current DACs for external offset nulling
- Internal 1.2 V precision reference voltage source
- Operates from 1.8 V and 3.3 V supplies
- Proprietary dynamic output architecture for usable outputs beyond Nyquist frequency
- Full programmability through a serial peripheral interface (SPI) port
- Pin-programmable features for applications without a controller
Applications
- Wireless infrastructure: W-CDMA, CDMA2000, TD-SCDMA, WiMAX
- Wideband communications: LMDS/MMDS, point-to-point RF signal generators, arbitrary waveform generators
Q & A
- What is the resolution of the AD9780BCPZ DAC?
The AD9780BCPZ has a 12-bit resolution.
- What is the maximum sample rate of the AD9780BCPZ?
The maximum sample rate is up to 500 MSPS.
- What type of interface does the AD9780BCPZ use?
The AD9780BCPZ uses an LVDS (Low-Voltage Differential Signaling) interface.
- What are the power supply requirements for the AD9780BCPZ?
The device operates from 1.8 V and 3.3 V supplies.
- What is the power dissipation of the AD9780BCPZ?
The power dissipation is 315 mW.
- What is the package type of the AD9780BCPZ?
The package type is a 72-Lead LFCSP (10mm x 10mm w/ EP).
- What are some key applications of the AD9780BCPZ?
Key applications include wireless infrastructure and wideband communications.
- Does the AD9780BCPZ support external offset nulling?
- How is the AD9780BCPZ programmed?
The device is fully programmable through a serial peripheral interface (SPI) port and also offers pin-programmable features.
- What is the significance of the dynamic output architecture in the AD9780BCPZ?
The proprietary dynamic output architecture allows for the synthesis of analog outputs even above the Nyquist frequency by shifting energy away from the fundamental and into the image frequency.
