Overview
The AD9739ABBCZRL, produced by Analog Devices Inc., is a 14-bit, 2.5 GSPS high-performance RF digital-to-analog converter (DAC). This component is designed to synthesize wideband signals from dc up to 3.0 GHz, making it suitable for various high-frequency applications. The AD9739 features a proprietary quad-switch DAC architecture, which provides exceptional AC linearity performance and enables mix-mode operation. It operates from 1.8 V and 3.3 V supplies and is packaged in a 160-ball chip scale ball grid array to minimize package parasitics.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| DAC Clock Rate | 800 | - | 2500 | MSPS |
| Adjusted DAC Update Rate | 800 | - | 2500 | MSPS |
| Output Settling Time (tst) to 0.1% | - | 13 | - | ns |
| Spurious-Free Dynamic Range (SFDR) at fOUT = 100 MHz | - | 69.5 | - | dBc |
| Programmable Differential Current Output | 8.66 | - | 31.66 | mA |
| Supply Voltages | 1.8 V, 3.3 V | - | - | V |
| Package Type | - | - | - | 160-ball chip scale ball grid array |
Key Features
- Proprietary quad-switch DAC architecture for exceptional AC linearity performance and mix-mode operation.
- Dual-port, source synchronous, LVDS interface supporting up to 2.5 GSPS conversion rate.
- On-chip controllers to manage external and internal clock domain variations over temperature.
- Programmable differential current output with a range of 8.66 mA to 31.66 mA.
- Serial peripheral interface (SPI) for device configuration and status register readback.
- Multichip synchronization capability.
Applications
- Broadband communications systems.
- DOCSIS CMTS systems.
- Military jammers.
- Instrumentation and automatic test equipment.
- Radar and avionics systems.
Q & A
- What is the maximum DAC clock rate of the AD9739?
The maximum DAC clock rate of the AD9739 is 2.5 GSPS (gigasamples per second).
- What is the resolution of the AD9739 DAC?
The AD9739 is a 14-bit DAC.
- What is the output current range of the AD9739?
The output current can be programmed over the range of 8.66 mA to 31.66 mA.
- What type of interface does the AD9739 use for data transfer?
The AD9739 uses a dual-port, source synchronous, LVDS (Low-Voltage Differential Signaling) interface.
- What are the supply voltages for the AD9739?
The AD9739 operates from 1.8 V and 3.3 V supplies.
- What is the package type of the AD9739?
The AD9739 is supplied in a 160-ball chip scale ball grid array.
- What are some of the key applications of the AD9739?
The AD9739 is used in broadband communications systems, DOCSIS CMTS systems, military jammers, instrumentation and automatic test equipment, and radar and avionics systems.
- Does the AD9739 support multichip synchronization?
- How does the AD9739 manage clock domain variations?
The AD9739 uses on-chip controllers to manage external and internal clock domain variations over temperature to ensure reliable data transfer.
- What interface is used for device configuration and status register readback?
A serial peripheral interface (SPI) is used for device configuration and status register readback.
