Microchip MCP37231－200 200Msps 16位ADC模数转换方案

Microchip公司的MCP37231/21-200是16位/14位200Msps ADC系列产品,每路内置了高阶数字抽取滤波器,增益,和失调调整,以及分数延迟恢复.器件具有谐波失真修正和DAC噪音消除,SNR大于74dBFS,SFDR大于90dBFS,200Msps的功耗仅为490mW,主要用在通信基础设施, 蜂窝基站,雷达,工业和消费类数据采集系统,扫描仪和手持仪器,超声以及声纳图像.本文介绍了MCP37231/21-200主要特性,框图, ADC核框图以及MCP37X3X-200 16位200 MSPS ADC VTLA评估板ADM00505主要特性,框图,电路图,材料清单和PCB元件布局图.
The MCP37231/21-200 is Microchip’s baseline 16-/14-bit 200 Msps pipelined ADC family, featuring built-in high-order digital decimation filters, gain and offset adjustment per channel, and fractional delay recovery.
The MCP37D31/21-200 device family features a digital down-conversion and CW beamforming capability, in addition to the features offered by the MCP37231/21-200.All devices feature harmonic distortion correction and DAC noise cancellation that enable high-performance specifications with SNR of greater than 74 dBFS, and SFDR of greater than 90 dBFS.
These A/D converters exhibit industry leading lowpower performance with only 490 mW operation while using the LVDS interface at 200 Msps. This superior low-power operation coupled with high dynamic performance makes these devices ideal for various high-performance, high-speed data acquisition systems including communications equipment, radar and portable instrumentation.
The output decimation filter option improves SNR performance up to 93.5 dBFS with the 512x decimation setting. The digital down-conversion option in conjunction with the decimation and quadrature output options offer great flexibility in digital communication system design, including cellular base-stations and narrow-band communications. Gain, phase and DC offset can be adjusted independently for each input channel, allowing for simplified implementation of CW beamforming and ultrasound Doppler imaging applications.
These devices can have up to eight differential input channels through...