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说明

MCP37D21-80是一个14位流水线a/D转换器，最大采样率为80Msps。超过73.9 dB的信噪比（SNR）和超过93 dB的杂散自由动态范围（SFDR）的高精度实现了对快速输入信号的高精度测量。该设备在80 Msps（包括LVDS数字I/O）下以320 mW的极低功耗运行。待机模式为79 mW，关机模式为22 mW。MCP37D21-80包括许多数字处理功能，可简化系统设计、成本和功耗。其中包括带板载NCO的集成数字下变频器、用于提高SNR的抽取滤波器、单独的相位、偏移和增益调整，以及用于多通道模式中的延迟校正的分数延迟恢复。数据可通过串行DDR LVDS或并行CMOS接口获得，并通过SPI进行配置。该设备有TFBGA-121封装。TFBGA-121封装适用于汽车应用（AEC-Q100）。

特性

• 14-bit resolution
• 80 Msps maximum sampling rate
• Low power 320 mW operation at full sampling rate, including LVDS digital I/O
• Power saving modes of 79 mW during Standby and 22 mW during Shutdown
• 73.9 dB SNR at 80 Msps
• 93 dB SFDR at 80 Msps
• Integrated digital down-converter
• Decimation filters for improved SNR
• Noise-shaping requantizer
• 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)
• Available in TFBGA-121 package
• AEC-Q100 qualified, Temperature Grade 1: -40°C to +125°C

参数