Overview
The AD9726BSVZ, manufactured by Analog Devices Inc., is a high-performance 16-bit digital-to-analog converter (DAC) designed to offer exceptional dynamic performance and noise characteristics. This device operates at conversion rates of up to 400 MSPS, making it suitable for applications requiring high-speed and high-precision signal synthesis. The AD9726BSVZ uses low voltage differential signaling (LVDS) inputs and includes internal 100 Ω terminations. It features an internal precision reference and supports both single-ended and differential current output configurations.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 16 bits | |||
| Conversion Rate | Up to 400 MSPS | |||
| DVDD Voltage Range | 2.37 | 2.5 | 2.63 | V |
| DBVDD Voltage Range | 3.13 | 3.3 | 3.47 | V |
| Supply Current (IDVDD) | 80 | 90 | mA | |
| Supply Current (IDBVDD) | 16 | 18 | mA | |
| Power Dissipation (PDISS) | 575 | mW | ||
| Operating Temperature Range | -40 | 85 | °C | |
| Output Settling Time (tST) to 0.1% | 10.5 | ns | ||
| Output Rise Time (10% to 90%) | 500 | ns | ||
Key Features
- High Dynamic Performance: The AD9726BSVZ offers exceptional noise and spurious performance, including SFDR ≥ 78 dBc at fOUT = 20 MHz, IMD ≥ 82 dBc at fOUT = 70 MHz, and ACLR ≥ 76 dBc at fOUT = 70 MHz.
- Low Voltage Differential Signaling (LVDS): The device uses LVDS inputs and includes internal 100 Ω terminations.
- Flexible Output Configuration: Supports both single-ended and differential current output configurations.
- Internal Precision Reference: Includes an internal precision reference for accurate output.
- Programmable via SPI: All device operations are fully programmable using the flexible serial port interface (SPI).
- Power Management: Features sleep and power-down modes to reduce power consumption, with power dissipation as low as ≤10 mW in power-down mode.
Applications
The AD9726BSVZ is suited for a variety of high-performance applications, including:
- Wireless Infrastructure: Ideal for synthesizing multicarrier transmit signals at intermediate frequencies (IFs) of 140 MHz and beyond, reducing the need for an up-conversion stage and lowering total system cost.
- Wideband Signal Synthesis: The high conversion rate enables the synthesis of wideband signals, making it suitable for applications requiring high-speed signal generation.
- Test and Measurement Equipment: Its high dynamic performance and precision make it a good fit for test and measurement equipment that require accurate and stable signal generation.
Q & A
- What is the resolution of the AD9726BSVZ DAC?
The AD9726BSVZ has a resolution of 16 bits.
- What is the maximum conversion rate of the AD9726BSVZ?
The maximum conversion rate is up to 400 MSPS.
- What type of input signaling does the AD9726BSVZ use?
The device uses low voltage differential signaling (LVDS) inputs.
- Can the AD9726BSVZ be configured for single-ended or differential output?
Yes, the AD9726BSVZ supports both single-ended and differential current output configurations.
- Does the AD9726BSVZ have an internal precision reference?
Yes, it includes an internal precision reference.
- How is the AD9726BSVZ programmed?
All device operations are fully programmable using the flexible serial port interface (SPI).
- What are the power management features of the AD9726BSVZ?
The device features sleep and power-down modes, with power dissipation as low as ≤10 mW in power-down mode.
- What is the operating temperature range of the AD9726BSVZ?
The operating temperature range is from -40°C to 85°C.
- What are some typical applications for the AD9726BSVZ?
Typical applications include wireless infrastructure, wideband signal synthesis, and test and measurement equipment.
- What is the package type of the AD9726BSVZ?
The AD9726BSVZ is available in an 80-Lead TQFP (12mm x 12mm) package.
