Overview
The AD9764ARZRL is a 14-bit resolution digital-to-analog converter (DAC) from Analog Devices Inc., part of the TxDAC series. This high-performance, low-power CMOS DAC is optimized for the transmit signal path of communication systems. It offers exceptional AC and DC performance, supporting update rates up to 125 MSPS. The AD9764ARZRL operates on a single supply voltage ranging from 2.7 V to 5.5 V, making it suitable for both portable and low-power applications. The device features a segmented current source architecture combined with a proprietary switching technique to enhance dynamic performance and reduce spurious components.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Resolution | 14 | - | - | Bits |
| Update Rate | - | - | 125 | MSPS |
| Supply Voltage | 2.7 | - | 5.5 | V |
| Full-Scale Output Current | 2 | - | 20 | mA |
| Output Impedance | - | - | > 100 kΩ | - |
| Logic '1' Voltage @ DVDD = +5 V | 3.5 | - | 5 | V |
| Logic '0' Voltage @ DVDD = +5 V | 0 | - | 1.3 | V |
| Input Capacitance | - | - | 5 | pF |
| Input Setup Time (tS) | - | - | 2.0 | ns |
| Input Hold Time (tH) | - | - | 1.5 | ns |
| Latch Pulsewidth (tLPW) | - | - | 3.5 | ns |
Key Features
- High-performance, low-power CMOS DAC with 14-bit resolution.
- Supports update rates up to 125 MSPS.
- Flexible single-supply operation from 2.7 V to 5.5 V.
- Nominal full-scale output current of 20 mA with > 100 kΩ output impedance.
- Differential current outputs for single-ended or differential applications.
- Segmented current source architecture and proprietary switching technique for enhanced dynamic performance.
- Edge-triggered input latches and a 1.2 V temperature-compensated bandgap reference.
- Power-down mode reduces standby power dissipation to approximately 25 mW.
Applications
- Communication systems: basestations, ADSL/HFC modems.
- Instrumentation.
- Portable and low-power applications.
- Digital synthesis and quadrature modulation.
Q & A
- What is the resolution of the AD9764ARZRL DAC?
The AD9764ARZRL has a 14-bit resolution.
- What is the maximum update rate of the AD9764ARZRL?
The AD9764ARZRL supports update rates up to 125 MSPS.
- What is the operating voltage range of the AD9764ARZRL?
The AD9764ARZRL operates on a single supply voltage ranging from 2.7 V to 5.5 V.
- What is the nominal full-scale output current of the AD9764ARZRL?
The nominal full-scale output current is 20 mA.
- Does the AD9764ARZRL support differential output configurations?
- How does the AD9764ARZRL reduce power consumption?
The AD9764ARZRL has a power-down mode that reduces standby power dissipation to approximately 25 mW.
- What type of architecture does the AD9764ARZRL use?
The AD9764ARZRL uses a segmented current source architecture combined with a proprietary switching technique.
- What is the input capacitance of the AD9764ARZRL?
The input capacitance is 5 pF.
- What are the typical input setup and hold times for the AD9764ARZRL?
The input setup time (tS) is 2.0 ns, and the input hold time (tH) is 1.5 ns.
- What are some common applications of the AD9764ARZRL?
