Overview
The ADC12DJ3200AAV is a high-performance, RF-sampling, giga-sample analog-to-digital converter (ADC) produced by Texas Instruments. This device is capable of directly sampling input frequencies from DC to above 10 GHz, making it highly versatile for various high-frequency applications. It offers programmable tradeoffs in channel count and Nyquist bandwidth, allowing for flexible hardware design to meet the needs of both high channel count and wide instantaneous signal bandwidth applications.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 12-bit |
| Sampling Rate (Single-Channel Mode) | Up to 6.4 GSPS |
| Sampling Rate (Dual-Channel Mode) | Up to 3.2 GSPS |
| Noise Floor (No Signal, VFS = 1.0 V PP-DIFF) | Dual-Channel Mode: –151.8 dBFS/Hz, Single-Channel Mode: –154.6 dBFS/Hz |
| HD2, HD3 | –65 dBc up to 3 GHz |
| Analog Input Bandwidth (–3 dB) | 8.0 GHz |
| Usable Input Frequency Range | >10 GHz |
| Full-Scale Input Voltage (VFS, default) | 0.8 V PP |
| Analog Input Common-Mode (VICM) | 0 V |
| Package | 144-FCBGA (10x10 mm) |
| Operating Temperature Range | –40°C to 85°C |
| Power Consumption | 3 W |
| Power Supplies | 1.1 V, 1.9 V |
| JESD204B Serial Data Interface | Up to 16 lanes, maximum lane rate: 12.8 Gbps |
Key Features
- High-Speed Sampling: Up to 6.4 GSPS in single-channel mode and up to 3.2 GSPS in dual-channel mode.
- Buffered Analog Inputs: With VCMI of 0 V and analog input bandwidth of 8.0 GHz.
- Precise Sampling Control: Noiseless aperture delay (TAD) adjustment with 19-fs step, temperature and voltage invariant delays.
- Synchronization Features: Automatic SYSREF timing calibration, timestamp for sample marking, and SYSREF windowing.
- Digital Down-Converters (DDCs): Real output: DDC bypass or 2x decimation; Complex output: 4x, 8x, or 16x decimation in dual-channel mode.
- JESD204B Interface: Supports subclass 0 and 1, up to 16 serialized lanes with a maximum lane rate of 12.8 Gbps.
Applications
- Communications Testers: 802.11ad, 5G.
- Satellite Communications (SATCOM): Various satellite communication systems.
- Phased Array Radar, SIGINT, and ELINT: Advanced radar and surveillance systems.
- Synthetic Aperture Radar (SAR): High-resolution imaging systems.
- Time-of-Flight and LIDAR Distance Measurement: Precision distance measurement applications.
- Oscilloscopes and Wideband Digitizers: High-speed data acquisition systems.
- Microwave Backhaul: High-frequency communication links.
- RF Sampling Software-Defined Radio (SDR): Flexible radio communication systems.
- Spectrometry: Analytical instruments for spectral analysis.
Q & A
- What is the maximum sampling rate of the ADC12DJ3200 in single-channel mode?
The maximum sampling rate in single-channel mode is up to 6.4 GSPS.
- What is the noise floor performance of the ADC12DJ3200?
The noise floor is –151.8 dBFS/Hz in dual-channel mode and –154.6 dBFS/Hz in single-channel mode.
- What is the analog input bandwidth of the ADC12DJ3200?
The analog input bandwidth is 8.0 GHz.
- What is the full-scale input voltage of the ADC12DJ3200?
The full-scale input voltage is 0.8 V PP.
- Does the ADC12DJ3200 support digital down-converters?
- What type of serial data interface does the ADC12DJ3200 use?
The ADC12DJ3200 uses a JESD204B serial data interface with up to 16 serialized lanes and a maximum lane rate of 12.8 Gbps.
- What are the power supply requirements for the ADC12DJ3200?
The power supplies required are 1.1 V and 1.9 V.
- What is the operating temperature range of the ADC12DJ3200?
The operating temperature range is –40°C to 85°C.
- What are some of the key applications of the ADC12DJ3200?
Key applications include communications testers, satellite communications, phased array radar, synthetic aperture radar, and RF sampling software-defined radio.
- How does the ADC12DJ3200 simplify system design for phased array radar and MIMO communications?
The ADC12DJ3200 simplifies system design through innovative synchronization features such as noiseless aperture delay (TAD) adjustment and SYSREF windowing.
