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A/D converter offers 'extremely' low power consumption

Posted: 06 Sep 2006 ?? ?Print Version ?Bookmark and Share

Keywords:austriamicrosystems? AS1534? ADC? A/D converter?

austriamicro's AS1534 A/D converter

austriamicrosystems has expanded its high-performance ADC portfolio with the introduction of the AS1534, a parallel interface A/D converter that promises extremely low power consumption. Combining high speed and low power consumption with outstanding dynamic performance (THD < -78dB), the new A/D converter is suitable for battery-powered devices and portable DAQ systems such as remote sensors or pen digitizers.

"The analog inputs are software configurable. Design engineers can choose either the 8-channel single-ended mode or the fully differential 4-channel mode, which offers them the utmost in flexibility for various applications," said Walter Moshammer, marketing director for standard linear at austriamicrosystems. "The fully differential input mode enables exceptionally precise measurements under noisy conditions, particularly those that are commonly found in industrial environments."

The new device offers a 12bit resolution on each of the eight input channels. With a conversion speed of 200KSps at 2.5mA supply current (including the internal reference), it achieves a 36 percent reduction of power consumption over its nearest competitor, the company said. Power-down options enable further reduction in consumption, down to 0.5mA at 10KSps and 1A in shutdown mode.

"This type of multi-input A/D converter is ideal for applications where many system parameters must be measuredand the need for such applications is increasing rapidly," added Moshammer. "With its emphasis on significant reduction in power consumption, the AS1534 is the product of choice."

The AS1534 is available in a Pb-free 44-pin PQFP package with an operating temperature range of -40C to 85C.




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