The MCP37D11-200 from Microchip Technology is a 12-bit Pipelined Analog to Digital Converter with a maximum sampling rate of 200 Msps. It features digital downconversion, CW beamforming capability, harmonic distortion correction, and DAC noise cancellation that enable high precision measurements of fast input signals with SNR of 71.3 dBFS and SFDR of 90 dBc. The device operates at a low power consumption of 468 mW at 200 Msps including LVDS digital I/O. This superior low-power operation coupled with high dynamic performance makes this device ideal for various high-performance, high-speed data acquisition systems, including communications equipment, radar, and portable instrumentation. However, Lower power saving modes are available at 144 mW for Standby and 28 mW for Shutdown.
The MCP37D11-200 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, a noise-shaping requantizer for SNR improvement around a bandwidth of interest, individual phase, offset and gain adjustment and a fractional delay recovery for time-delay corrections in multi-channel modes. In single or dual-channel mode, the Noise-Shaping Requantizer (NSR) feature can allow the ADC to improve SNR beyond a conventional 11- or 12-bit ADC.
The differential full-scale analog input range is programmable up to 2.975 VP-P. The ADC output data can be coded in two's complement or offset binary representation, with or without the data randomizer option. The output data is available as full-rate CMOS or Double-Data-Rate (DDR) LVDS.
This ADC is available in Pb-free TFBGA-121 and VTLA-124 packages. The device with a TFBGA-121 package is AEC-Q100 qualified for automotive applications and operates over the extended temperature range of -40°C to +125°C.
