Mouser Electronics offers the AD7380 and AD7381 successive-approximation register analogue-to-digital convertors from Analog Devices. The pin-compatible 16bit AD7380 and 14bit AD7381 convertors feature throughput rates of 4Msample/s and a tiny 3 x 3mm LFCSP. The dual simultaneous-sampling, high-speed convertors are ideal for motor control, sonar, power quality and data acquisition applications.
The devices contain two convertors and a serial interface with two separate data output pins. Engineers can access data on the devices via the serial interface, which can operate with one or two serial outputs. The convertors feature fully differential analogue inputs that accept a wide common-mode input voltage. The conversion process and data acquisition use standard control inputs allowing easy interfacing to microprocessors or digital signal processors. Integrated on-chip oversampling blocks improve dynamic range and reduce noise at lower bandwidths.
The AD7380 and AD7381 operate from a 3 to 3.6V power supply, with a buffered internal 2.5V reference (optional external reference up to 3.3V) and typical drift of just ±1ppm/°C. They are supported by the EVAL-AD7380FMCZ and EVAL-AD7381FMCZ evaluation boards, respectively, in conjunction with the EVAL-SDP-CH1Z high-speed controller board.
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