Product category: Microprocessors, Microcontrollers and DSPs
News Release from: Maxim Integrated Products | Subject: MAXQ7665 and MAXQ7666
Edited by the Electronicstalk Editorial Team on 13 May 2008
Microcontrollers are made for sensor
systems
Mixed-signal MCUs are ideal for automotive applications such as steering, braking and throttle position control, as well as industrial control applications.
The MAXQ7665 and MAXQ7666 are mixed-signal SoC microcontrollers for sensor-based applications and are based on Maxim's innovative MAXQ architecture Designed for use with anisotropic magnetoresistive (AMR) sensors, the devices provide a complete system solution for the contactless sensing of linear or angular position and displacement
This article was originally published on Electronicstalk on 27 Aug 2002 at 8.00am (UK)
Related stories
Speedy DAC claims dynamic superiority for comms
The MAX5195 is a 14bit 260Msample/s DAC claimed to provide the world's best dynamic performance in spurious-free dynamic range, intermodulation distortion and signal to noise ratio.
Low-power serial ADC runs up to 200Ksample/s
New from Maxim Integrated Products, the MAX1162 serial-interface 16bit A/D convertor connects directly to SPI, QSPI and Microwire devices without additional interface logic.
Requiring only 7 x 7mm of board space, these compact microcontrollers integrate all of the functions needed to accurately measure the low-amplitude signals of AMR sensors, and provide analogue and and or digital outputs.
Designed to digitise and process signals in harsh, space-constrained environments, the MAXQ7665 and MAXQ7666 are ideal for automotive applications such as steering, braking, and throttle position control, as well as industrial control applications such as valve positioning and shaft rotation.
Each device features an eight-channel differential input, followed by a programmable-gain amplifier (up to 32x) and a 12bit, 500Ksample/s ADC.
Further reading
Power amp shrinks for compact wireless networking
According to Maxim Integrated Products, the MAX2247 is the industry's smallest silicon germanium linear power amplifier for 2.4GHz WLAN applications.
Touch-screen controllers feature ESD protection
The MAX1233 and MAX1234 are programmable four-wire touch-screen controllers.
These devices digitise sensor outputs with an accuracy of up to 8uV, enabling very precise real-world measurements.
To ensure precision during operation, the MAXQ7665 and MAXQ7666 feature both local-die and remote temperature sensing, which allow for temperature compensation of the sensor output.
These devices also monitor the supply-rail voltage to respond to power-failure conditions, and they integrate a watchdog timer and three timers with input-capture and output-compare capabilities to ensure reliable operation.
The MAXQ7665 and MAXQ7666 embed a 16bit RISC MAXQ microcontroller core, which is enhanced by a 16 x 16 hardware multiplier and 48bit accumulator.
The devices can process digitised data and execute user applications at up to 1MIPS andMHz, while consuming only 0.25mA and MIPS.
In addition to integrating 512byte of SRAM for data, the MAXQ7665 offers 64Kbyte and the MAXQ7666 offers 16Kbyte of automotive-grade Flash memory.
Both analogue and digital outputs are available from either an on-chip 12bit voltage DAC with a buffered output, a UART port (for LIN 2.0 communication), eight general-purpose I/Os, or a CAN 2.0B-compliant interface.
The MAXQ7665 and MAXQ7666 are available in space-saving 7 x 7mm, 48-pin TQFN packages and are fully specified over the -40 to +125C automotive temperature range.
Prices start at US $7.83 for the MAXQ7665 and $7.49 for the MAXQ7666 (1000-up).
An evaluation kit is available to speed designs.
The kit includes an evaluation board and a PC-based integrated development environment (IDE).
The IDE provides a debugger, assembler and linker, a time-limited version of the IAR C compiler and a simulator.
Maxim's website offers many application notes and software examples to use with the evaluation kit.
• Maxim Integrated Products: contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• Electronicstalk Home Page
Search the Pro-Talk network of sites
