[原创] Linear LTC2311-16 16位5Msps SAR ADC解决方案

Linear公司的LTC2311-16是低噪音高速16位 SAR 5Msps ADC,差分输入和宽输入共模范围,单电源3.3V或5V工作,差分输入范围8VP-P,fIN = 2.2MHz时的SNR为81dB,THD为-90dB,16位时±3LSB INL,不会丢失码,主要用在高速数据采集系统,通信,遥控数据采集,图像,光网络,汽车电子和对相马达控制.本文介绍了LTC2311特性,框图,应用电路以及演示板2425A主要特性,连接图,电路图,材料清单和PCB元件布局图.

The LTCR2311-16 is a low noise, high speed 16-bitsuccessive approximation register (SAR) ADC withdifferential inputs and wide input common mode range.

Operating from a single 3.3V or 5V supply, the LTC2311-16 has an 8VP-P differential input range, making it idealfor applications which require a wide dynamic range withhigh common mode rejection. The LTC2311-16 achieves±3LSB INL typical, no missing codes at 16 bits and 81dBSNR typical.

The LTC2311-16 has an onboard low drift (20ppm/℃ max)2.048V or 4.096V temperature-compensated reference andprovides an external 1.25V buffered reference input. TheLTC2311-16 also has a high speed SPI-compatible serialinterface that supports CMOS or LVDS. The fast 5Mspsthroughput with one-cycle latency makes the LTC2311-16ideally suited for a wide variety of high speed applications.
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