Optimized for motor control and smart sensing applications, Analog Devices ADuC7128 microcontroller (MCU) integrates a 32-bit ARM7 RISC processor with high-speed, multi-channel data conversion, and 126 kbytes Flash memory. The unit's 12-bit multi-channel, analog-to-digital converter (ADC) operates at speeds to 1 MSPS (mega-samples-per-second). Motor control specific peripherals include six-channel pulse-width modulation (PWM) with H-bridge mode. An on-chip quadrature encoder provides the speed, position, and direction control required by dc motor controls. In addition, the ADuC7128 has an integrated direct digital synthesizer (DDS), and I/V control making it applicable to a variety of motor control applications. Packaged in a 9 × 9 mm 64-LFCSP (lead-frame chip-scale package), the device is specified over an operating temperature range of -40 to +85C.
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For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This discussion will examine what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.