Overview
The AD9142BCPZRL, produced by Analog Devices Inc., is a dual, 16-bit, high dynamic range digital-to-analog converter (DAC) designed for high-speed and high-performance applications. This component offers a sample rate of up to 1600 MSPS, enabling multicarrier generation up to the Nyquist frequency. It is optimized for direct conversion transmit applications, including complex digital modulation and seamless integration with analog quadrature modulators such as the ADL537x F-MOD series and the ADRF670x series. The AD9142 is available in a 72-lead LFCSP package and features a low power architecture, making it suitable for various wireless and wideband communication systems.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Sample Rate | - | - | 1600 | MSPS |
| Resolution | - | - | 16-bit | - |
| Full-Scale Output Current | 9 | - | 33 | mA |
| Power Consumption (2× Mode, fDAC = 491.52 MSPS, NCO OFF) | - | - | 700 | mW |
| Power Consumption (8× Mode, fDAC = 1600 MSPS, NCO OFF) | - | - | 1315 | mW |
| Operating Temperature Range | -40 | - | 85 | °C |
| DAC Latency Variation (SYNC Off) | - | - | 2 | DACCLK cycles |
| DAC Latency Variation (SYNC On) | - | - | 1 | DACCLK cycles |
Key Features
- Very small inherent latency variation: <2 DAC clock cycles
- Proprietary low spurious and distortion design
- Flexible 16-bit LVDS interface
- Multiple chip synchronization and fixed latency
- Selectable 2×, 4×, 8× interpolation filter
- Low power architecture with power saving features
- Input signal power detection and FIFO error detection for downstream analog circuitry protection
- On-chip numeric control oscillator for carrier placement anywhere in the DAC Nyquist bandwidth
- Digital gain and phase adjustment for sideband suppression
- Digital inverse sinc filter
Applications
- Wireless communications: 3G/4G and MC-GSM base stations, wideband repeaters, software defined radios
- Wideband communications: point-to-point, LMDS/MMDS
- Transmit diversity/MIMO
- Instrumentation
- Automated test equipment
Q & A
- What is the maximum sample rate of the AD9142?
The AD9142 has a maximum sample rate of 1600 MSPS. - What is the resolution of the AD9142 DAC?
The AD9142 is a 16-bit DAC. - What type of interface does the AD9142 support?
The AD9142 supports a flexible 16-bit LVDS interface. - What are the key applications of the AD9142?
The AD9142 is used in wireless communications, wideband communications, transmit diversity/MIMO, instrumentation, and automated test equipment. - How does the AD9142 protect downstream analog circuitry?
The AD9142 includes input signal power detection and FIFO error detection for protecting downstream analog circuitry. - What is the operating temperature range of the AD9142?
The operating temperature range of the AD9142 is from -40°C to 85°C. - What is the typical power consumption of the AD9142 in 2× mode at 491.52 MSPS with NCO OFF?
The typical power consumption in this mode is 700 mW. - Does the AD9142 support multiple chip synchronization?
Yes, the AD9142 supports multiple chip synchronization and fixed latency. - What types of filters does the AD9142 offer?
The AD9142 offers selectable 2×, 4×, 8× interpolation filters and a digital inverse sinc filter. - Is the AD9142 still in production?
No, the AD9142BCPZRL is obsolete and no longer manufactured.
