ADC GX08200 replaces ADC08200 for use in LiDAR

Lidar measures the distance, velocity, and shape of targets by emitting laser pulses and receiving reflected light. The received optical signal is first converted into an analog electrical signal, and the analog-to-digital converter quickly and accurately converts these analog electrical signals into digital signals for subsequent digital processing and analysis.

High precision analog-to-digital converters can digitize weak light reflection signals at a fine quantization level, capturing small signal changes, which is crucial for measuring precise distance and detail information of distant or low reflectivity targets. GX08200 is a low-power high-speed analog-to-digital converter. Driven by an external input clock, the chip can achieve 8-bit data conversion of up to 1GSPS in a single channel. The high sampling rate ensures timely acquisition of rapidly changing reflected signals, thereby accurately capturing dynamic information of the target.

The analog-to-digital converter GX08200 includes a reference voltage source, a serial SPI control interface, and parallel LVDS/RSDS output clock and data. Through the serial SPI interface, data can be written to the ADC‘s internal registers to configure the ADC‘s operating status. The advantages of its application are introduced as follows:

• Ultra low power consumption: 510mW@1GSPS

Signal input frequency range: 0-500MHz

Maximum differential input range of signal: 1Vpp-1.2Vpp

PD, RSTN, SPI control interfaces support 1.8V CMOS logic

Parallel LVDS/RSDS output

• Working environment temperature: -40 ℃ to 105 ℃

7x7mm2 QFN48 package

• Supports SPI MODE3 read-write function