High-Speed DAC
High-Speed DAC
Leveraging our unique low-power architecture and patents, we offer ultra-low-power CMOS Hall sensors. With high signal-to-noise ratio signal reconstruction technology, we also provide ultra-high sensitivity magnetic field sampling products.
Product Model
DAD9747
The DAD9747 is a high dynamic range DAC, dual channel analog-to-digital converter with 16 bit resolution and a sampling rate of up to 250MSPS. Can output multi carrier broadband signals within the Nyquist frequency band. Specially designed internally for direct frequency conversion transmission applications, including gain and bias compensation. The DAC output can seamlessly connect with an analog quadrature modulator. Using a 4-wire SPI interface, DAC can be configured, read, and other operations. The DAC output current is configured from 8.6mA to 31.7mA.
Features
- High dynamic range, dual DAC.
- Low noise and intermodulation distortion.
- Single-carrier W-CDMA ACLR = 80dBc (61.55MHz).
- The innovative switching output stage allows for output frequencies exceeding the Nyquist frequency.
- Includes dual-port LVCMOS input or select interleaved access single-port operation.
- The differential analog current output can be programmed from 8.6mA to 31.7mA.
- The auxiliary 10-bit current DAC has current sinking/current sourcing capabilities and can be used in external zero-bias compensation circuits.
- Built-in 1.2V precision reference voltage source.
- Operating power supply: 1.8V～3.3V.
- Power consumption: 320mW.
- Small size, lead-free, 72-pin QFN package.
Applications
- Wireless infrastructure: WCDMA, CDMA2000, TD-SCDMA, WiMAX.
- Broadband communication: LMDS/MMDS, point-to-point.
- Instrumentation: Radio frequency (RF) signal generators, arbitrary waveform generators.
Specifications
Product Model | Resolution (bits) | Supply Voltage | Description | Channels | Data update rate | SFDR(dBc) | Data Interface | Noise spectral density | Temperature Range (°C) | Package Type | Datasheet |
|---|---|---|---|---|---|---|---|---|---|---|---|
DAD9747 | 16 | 1.8V 3.3V | High-Speed DAC | 2 | 250MSPS | 70.5@70MHZ | COMS | -164@15.36MHZ | -40°C ~ 85°C | QFN-72 |
