Overview
The AD9767ASTZRL is a 14-bit, high-speed, dual-port, 2-channel digital-to-analog converter (DAC) produced by Analog Devices Inc. This component integrates two high-quality TxDAC+® cores, a voltage reference, and digital interface circuitry into a compact 48-lead LQFP package. It is designed to offer exceptional AC and DC performance, supporting update rates of up to 125 MSPS. The AD9767 is optimized for processing I and Q data in communications applications, making it a versatile choice for various high-speed signal processing needs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 14 | bits |
| Number of Channels | 2 | |
| Converter Primary Function | High Speed DAC | |
| DAC Type | Current Out | |
| Data Input Format | Straight Binary | |
| Interface | Parallel | |
| Operating Temperature Range | -40 to 85 | °C |
| Power (typ) | 380 mW | W |
| Maximum Output Update Rate (fCLK) | 125 | MSPS |
| Output Settling Time (tST) to 0.1% | 35 | ns |
| Output Propagation Delay (tPD) | 1 | ns |
| Package | 48-lead LQFP | |
| Supply Voltage | 3.3 V to 5 V | V |
Key Features
- Dual 14-bit, 125 MSPS DACs optimized for low distortion performance and flexible transmission of I and Q information.
- Excellent gain and offset matching: 0.1% full-scale current matching and better than 0.02% offset error.
- Fully independent or single-resistor gain control.
- Dual-port or interleaved data interface with separate write inputs and clocks for each DAC port.
- On-chip 1.2 V temperature-compensated band gap voltage reference.
- Low power operation: 380 mW from a 3.3 V to 5 V single supply, with a sleep mode for low power idle periods.
- Segmented current source architecture combined with a proprietary switching technique to reduce glitch energy and maximize dynamic accuracy.
Applications
- Communications: Base stations, digital synthesis, and quadrature modulation.
- 3D ultrasound systems.
- High-speed signal processing in various industrial and medical applications.
Q & A
- What is the resolution of the AD9767ASTZRL DAC?
The AD9767ASTZRL has a resolution of 14 bits.
- What is the maximum output update rate of the AD9767ASTZRL?
The maximum output update rate is 125 MSPS.
- What type of interface does the AD9767ASTZRL use?
The AD9767ASTZRL uses a parallel interface.
- What is the operating temperature range of the AD9767ASTZRL?
The operating temperature range is -40°C to 85°C.
- How much power does the AD9767ASTZRL consume?
The AD9767ASTZRL consumes 380 mW of power from a 3.3 V to 5 V single supply.
- What is the package type of the AD9767ASTZRL?
The package type is a 48-lead LQFP.
- Can the gain of the AD9767ASTZRL be controlled independently for each DAC?
- What is the output settling time of the AD9767ASTZRL?
The output settling time to 0.1% is 35 ns.
- Is the AD9767ASTZRL RoHS compliant?
- What are some typical applications of the AD9767ASTZRL?
