Product category:
Analogue and Mixed Signal ICs
News Release from: Analog Devices
Edited by the Electronicstalk Editorial
Team on 27 September 2004
Automotive safety and entertainment on
show
Analog Devices will showcase its broad portfolio of technologies enabling automotive safety and entertainment systems at the International Automotive Electronics Congress in Paris.
Analog Devices will showcase its broad portfolio of technologies enabling automotive safety and entertainment systems with multiple product demonstrations at the International Automotive Electronics Congress in Paris, from 27th to 29th September 2004 "Today's automobiles are becoming more like computers you can drive - and nearly everywhere you can imagine computerised processing or signal conditioning occurring, you'll find ADI products", said Didier Letourneur, Business Development Manager Automotive at Analog Devices
This article was originally published on Electronicstalk on 2 Jul 2008 at 8.00am (UK)
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"Analog Devices delivers the signal processing products, technology, and support automotive manufacturers need to develop core safety, navigation, infotainment and engine control subsystems the advanced automobiles of today and tomorrow require".
A gold sponsor of the event, Analog Devices will also be presenting four technical conferences: "High side current sensing for automotive solenoid control" by Charles Whiting, Tuesday 28th September (Workshop 1); "Removing the cost barrier to low cost telematics" by Mark Gill, Tuesday 28th September (Workshop 3); "Integrated MEMS make cars smarter" by John Zimmerman, Wednesday 29th September (Workshop 4); and "Advanced signal conditioning for strain-bridge and capacitive sensing" by Eric Nolan, Wednesday 29th September (Workshop 5).
ADI's technology demonstrations at the IAEC booth include its car telematics platforms, designed to serve the embedded processing market for feature-rich, multimedia car-telematics applications.
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Based on a Blackfin processor, which combines best-in-class signal-processing performance with microcontroller functionality, the first platform, named CTP02, meets the computational challenges, the flexibility demands and power constraints of in-vehicle safety systems, audio, and wireless communications.
We demonstrate various car telematics algorithms running concurrently on Blackfin within the CTP02 platform.
The algorithms are: GPS, text-to-speech (Realspeak), voice recognition (ASR1600), CD-block decoding with MP3 playback, and GSP-AT command interface.
the car telematics platform capitalises on the processing power of a single Blackfin processor to reduce telematics system costs, size and development time by integrating both user applications and signal processing functions on a single processor.
This significantly reduces the system development costs compared with existing schemes where there are often separate processors and software modules for each function.
The AD8555 is the industry's first digitally programmable, signal-conditioning auto-zero amplifier for strain-bridge and other sensors that are widely used in automotive applications.
Within the AD8555, Analog Devices has integrated a full range of amplifier, comparator, resistor, trimming potentiometer and buffer functionality into a tiny SOIC or 4 x 4mm chip-scale package (CSP), providing a complete path from a sensor to an analogue-to-digital (A/D) convertor.
This allows systems designers to automatically, under software control, eliminate variations between sensors.
Sensor outputs can be digitally programmed for gain and output offset voltage.
Prior to the ADI solution, engineers relied on devices that had lower accuracy and less stability and involved manual adjustments that were difficult, time consuming and expensive.
The AD8555's unique combination of precision performance and functionality in a very compact footprint make it an ideal solution for automotive pressure sensor applications, such as brake, fuel and manifold pressure sensing.
The AD8205, is a high-side current sensing solution critical to the solenoid and motor control circuits that reside within automotive systems, such as the transmission, brakes, suspension, steering, water pumps and wipers.
Replacing mechanical systems with electro-mechanical systems is making cars lighter, more fuel efficient and higher performing.
In addition, devices like the AD8205 help electromechanical systems reduce emissions by delivering more accurate system control and efficiencies.
The AD8205 is a high-performance, single-supply difference amplifier with a wide input common mode voltage (CMV) operational range of -2 to +65V, which allows the chip to measure small differential voltages - such as across a shunt resistor - in the presence of high voltages (large CMV).
Additionally, the device can survive over an input CMV range of -5 to +70V.
The part's ability to reject high common mode voltages while measuring small differential voltages eliminates error sources commonly associated with current sensing in electro-mechanical systems.
Analog Devices already serves the passive safety systems market as the world leader in sensors for airbag systems.
Using an interactive inertial measurement module that detects movement with six degrees of freedom in a 3D space, the capabilities of ADI's iMEMS motion signal processing technology will be demonstrated.
Applications currently using iMEMS accelerometers and gyroscopes include: rollover detection systems, which use gyros and low-g accelerometers to determine when a vehicle is rolling over and cannot recover so that side curtain airbags can be deployed prior to impact; vehicle dynamic control (also known as an electronic stability program/ESP or vehicle stability control) that corrects oversteer and understeer to prevent cars from spinning out of control, using a gyro and low-g accelerometer to determine a car's actual path versus its intended path, and differentially applying brakes to correct the vehicle's trajectory.
As well as safety systems, MEMS applications include navigation systems (using low-g accelerometers and gyros to enable dead reckoning), anti-theft systems and electronic brake systems.
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