New ADuC7128 MCU optimized for motor control and smart sensing applications, features unmatched 32-bit ARM7 RISC performance, high-speed, multi-channel data conversion and larger flash memory.

Norwood, MA (04/03/2006) - Analog Devices, a global leader in high-performance semiconductors for signal-processing applications, today extended its portfolio of precision analog microcontrollers with a device that combines new levels of on-chip integration, performance and analog peripherals required for motor control and smart sensing applications that are widely used in industrial and automotive system designs. The ADuC7128 features a powerful 32-bit ARM7 RISC microcontroller core, a 12-bit multichannel, analog-to-digital converter (ADC) operating at speeds to 1 MSPS (mega-samples-per-second) and 50 percent more embedded flash memory at 126 Kbytes. The new device builds on the success of Analog Devices’ ADuC702x precision analog microcontroller family by embedding application-specific analog peripherals that reduce development time and cost associated with existing discrete solutions in motor control and smart sensing applications. The peripherals include 6-channel pulse-width modulation (PWM) with H-bridge mode, an on-chip quadrature encoder that deliver the speed, position and direction control required by dc motor controls, and an integrated direct digital synthesizer (DDS) and low-pass filter that generates a raw sine wave at up to 1 MHz to act as a stimulus for smart sensing applications.

“Two years ago, we addressed a strong customer demand for high-performance data converters with embedded processing power,” said Mike Britchfield, product line director, precision signal processing group, Analog Devices. “We responded with an ARM7-based family of general-purpose precision analog MCUs that met the performance, size and processing requirements of applications ranging from medical instrumentation to optical transceivers. With today’s introduction of the ADuC7128, we are not only increasing the breadth of our precision analog microcontroller portfolio, but we have optimized the new device for more specific customer application requirements in the areas of motor control and sensing.”

About the ADuC7128 Precision Analog Microcontroller
The ADuC7128 features a 44 MIPS (million-instructions-per-second) 32-bit ARM7TDMI core, 12-bit, 1-MSPS ADC and 126 Kbytes of embedded flash memory. In addition to the 6-channel PWM and quadrature encoder, the ADuC7128 provides I/V control, making it applicable to a variety of motor control applications. The PWMs can also be used as general purpose 16-bit PWMs to provide additional DAC outputs, high frequency clocks or set point control, for example.

For smart sensing applications, the ADuC7128 features a 32-bit on-chip DDS that operates at 21 MHz. This feature enables smart sensor applications with a minimum frequency range of
4.8 MHz, while an integrated low pass filter ensures a clean signal. A 100-ohm driver at the DDS output is controlled by the microprocessor core and analog front end (AFE). Additionally, the ADuC7128 integrates other analog functionality, including a comparator, temperature sensor, PLA (Programmable Logic Array) and several communications ports including two UARTs, further reducing cost, board space and development time.

Availability and Pricing
The ADuC7128 is sampling now with full production scheduled for late summer. The device is priced at $6.95 per unit in 1,000-unit quantities in a 9 mm × 9 mm 64-LFCSP (lead-frame chip-scale package) and is specified over an operating temperature range of –40 degrees C to +85 degrees C. An 80-pin LQFP (low profile quad flat pack) option, the ADuC7129, offers more GPIO and external memory interface; it is offered at $7.75 in 1,000-piece quantities and will be sampling in September.

About Analog Devices
Innovation, performance, and excellence are the cultural pillars on which Analog Devices has built one of the longest standing, highest growth companies within the technology sector. Acknowledged industry-wide as the world leader in data conversion and signal conditioning technology, Analog Devices serves over 60,000 customers, representing virtually all types of electronic equipment. Celebrating 40 years as a leading global manufacturer of high-performance integrated circuits used in analog and digital signal processing applications, Analog Devices is headquartered in Norwood, Massachusetts, with design and manufacturing facilities throughout the world. Analog Devices' common stock is listed on the New York Stock Exchange under the ticker “ADI” and is included in the S&P 500 Index.

Editor's Contact Information:

Krys Monaco

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