Overview
The AD9787BSVZ from Analog Devices Inc. is a high-performance, dual-channel digital-to-analog converter (DAC) designed for demanding applications requiring high dynamic range and precision. This device is part of the AD9785/AD9787/AD9788 family, offering 14-bit resolution and a sample rate of up to 800 MSPS. It is particularly optimized for direct conversion transmit applications, including complex digital modulation, and features gain, phase, and offset compensation.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 14 | - | - | Bits |
| Differential Nonlinearity (DNL) | ±0.5 | - | ±2.1 | LSB |
| Integral Nonlinearity (INL) | ±1.0 | - | ±3.7 | LSB |
| Main DAC Output Current | 8.66 | 20.2 | 31.66 | mA |
| Output Compliance Range | -1.0 | - | +1.0 | V |
| Output Resistance | 10 | - | - | MΩ |
| Settling Time, to Within ±0.5 LSBs | 20 | - | - | ns |
| Power Consumption (fDATA = 100 MSPS, Inverse Sinc Off, PLL Off) | 533 | - | - | mW |
| Operating Range | -40 | - | +85 | °C |
Key Features
- Dual 14-bit digital-to-analog converters with sample rates up to 800 MSPS, enabling multicarrier generation up to the Nyquist frequency.
- Optimized for direct conversion transmit applications, including complex digital modulation, and features for gain, phase, and offset compensation.
- Full programmability through a serial peripheral interface (SPI) port, with some pin-programmable features for applications without a controller.
- Full-scale output current programmable over a range of 10 mA to 30 mA.
- Manufactured on a 0.18 μm CMOS process, operating from 1.8 V and 3.3 V supplies.
- Enclosed in a 100-lead TQFP package.
- Seamless interface with analog quadrature modulators such as the ADL5375 family from Analog Devices.
Applications
- Direct conversion transmit applications in wireless communication systems.
- Complex digital modulation schemes.
- High dynamic range signal generation.
- Integration with analog quadrature modulators for advanced signal processing.
- Wireless infrastructure, including base stations and repeaters.
- Aerospace and defense systems requiring high precision and dynamic range.
Q & A
- What is the resolution of the AD9787BSVZ DAC?
The AD9787BSVZ has a resolution of 14 bits.
- What is the maximum sample rate of the AD9787BSVZ?
The maximum sample rate is up to 800 MSPS.
- What are the key features optimized for in the AD9787BSVZ?
The device is optimized for direct conversion transmit applications, including complex digital modulation, and features gain, phase, and offset compensation.
- How is the AD9787BSVZ programmed?
The device is fully programmable through a serial peripheral interface (SPI) port, with some pin-programmable features available.
- What is the operating voltage range of the AD9787BSVZ?
The device operates from 1.8 V and 3.3 V supplies.
- What is the package type of the AD9787BSVZ?
The device is enclosed in a 100-lead TQFP package.
- Can the AD9787BSVZ interface with analog quadrature modulators?
- What is the typical power consumption of the AD9787BSVZ at 100 MSPS?
The typical power consumption is 533 mW at 100 MSPS with Inverse Sinc Off and PLL Off.
- What is the operating temperature range of the AD9787BSVZ?
The operating temperature range is from -40°C to +85°C.
- What are some common applications of the AD9787BSVZ?
