描述 Description

The MCP37D31-200 is a 16-bit pipelined A/D converter with a maximum sampling rate of 200 Msps. The high accuracy of over 74 dB Signal-to-Noise Ratio (SNR) and over 90 dB Spurious Free Dynamic Range (SFDR) enable high precision measurements of fast input signals. The device operates at very low power consumption of 490 mW at 200 Msps including LVDS digital I/O. Lower power saving modes are available at 80 mW for Standby and 33 mW for Shutdown. The MCP37D31-200 includes many digital processing features that simplify system design, cost and power usage. These include an integrated digital down-converter with onboard NCO, decimation filters for improved SNR, individual phase, offset and gain adjustment and a fractional delay recovery for time-delay corrections in multi-channel modes. Data is available through the serial DDR LVDS or parallel CMOS interface and configured via SPI. The device is available in the TFBGA-121 and VTLA-124 packages.

特性 Features

16-bit resolution
200 Msps maximum sampling rate
Low power 490 mW operation at full sampling rate, including LVDS digital I/O
Power saving modes of 80 mW during Standby and 33 mW during Shutdown
>74 dBFS SNR at 200 Msps
>90 dBFS SFDR at 200 Msps
Integrated digital down-converter
Decimation filters for improved SNR
Phase, offset and gain adjustment of individual channels
Fractional delay recovery for time-delay corrections in multi-channel operations (dual/octal-channel modes)
Input channel bandwidth of 500 MHz
Output data format in serial DDR LVDS or parallel CMOS
Configuration via Serial Peripheral Interface (SPI)
Industrial temperature range -40°C to +85°C
Available in TFBGA-121 and VTLA-124 packages

簡介

MCP37D31屬于集成電路（IC）的模數(shù)轉(zhuǎn)換器（ADC）。由制造生產(chǎn)的MCP37D31模數(shù)轉(zhuǎn)換器（ADC）模數(shù)轉(zhuǎn)換器（ADC、A/D 或 A 轉(zhuǎn) D）對模擬信號進(jìn)行采樣，例如由麥克風(fēng)采集的聲音或傳感器的輸出，然后將其轉(zhuǎn)換為數(shù)字信號。一般來說，數(shù)字輸出是二進(jìn)制補碼二進(jìn)制數(shù)，與輸入成比例。輸入類型可能是差分、偽差分或單端輸入。模數(shù)轉(zhuǎn)換器可按照位數(shù)、采樣率、輸入數(shù)、接口、轉(zhuǎn)換器數(shù)和架構(gòu)（例如自適應(yīng)增量、雙斜率、折疊、流水線、SAR、三角積分、兩步式）進(jìn)行選擇。