Dual-channel 10-bit 1GSPS High-Speed ADC GX10D1000 Replacement for ADC10D1000 in Broadband Radar Applications

Radar, as a crucial detection device, is widely used in military, civilian, and other fields. Its operating principle is based on the transmission and reception of electromagnetic waves. By emitting electromagnetic wave signals with a relatively wide bandwidth, when these signals interact with targets, they generate reflected or scattered echoes. The receiver of the broadband radar captures these echo signals and undergoes a series of complex processing steps to obtain various target information, such as distance, speed, azimuth, and shape.

Broadband radar systems require ADCs with high sampling rates to accurately capture high-frequency information from target echo signals. The GXSC dual-channel 10-bit 1GSPS high-speed ADC is suitable for applications demanding extremely high signal processing accuracy and speed, playing a critical role in broadband radar systems. Each channel of this ADC features independent DDR data clocks (DCLKI and DCLKQ). When both channels operate, DCLKI and DCLKQ remain in phase, allowing data acquisition to be performed using only one of them. If the 1:2 Demux mode is selected, an additional set of 10-bit LVDS buses is activated, reducing the data rate of each LVDS group to half that of the Non-Demux mode, thereby lowering the timing requirements for data capture.

The GX10D1000 supports the AutoSync function and can be used for multi-chip cascading. The chip achieves excellent dynamic performance with a low power consumption of less than 2W. Its data output format is programmable between offset binary code and two‘s complement, and it utilizes an LVDS interface compliant with international standards. This interface offers advantages such as high-speed transmission, low noise, low power consumption, electromagnetic interference resistance, and long transmission distance, ensuring the effective and reliable transfer of sampled data. The output common mode can be adjusted between 0.8V and 1.2V.

Features of the GX10D1000:

Built-in dual-channel 1.0 GSPS ADC

Low power consumption, no need for a heat sink

Built-in termination resistor (auto-calibrated), high-speed buffer

Provide Test Patterns for System Debugging and Batch Testing

1:1 Non-demuxed or 1:2 Demuxed LVDS Data Output

Multi-chip automatic synchronization function

Single 1.9V power supply

Full-power bandwidth: 2.4GHz

Data latency: 26 master clock cycles

Static performance: DNL -0.8/+1.2 LSB, INL -2.5/+2.8 LSB