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12-bit A/D converter offers high speed, increased channel count

Unterpremstaetten, Austria—austriamicrosystems has introduced the AS1542, a multi-channel successive-approximation A/D converter that delivers a 1-Msps speed with 16 input channels.

Applications include networking equipment, motor control, industrial automation, wired and wireless communications and all forms of data acquisition.

The AS1542 offers 12-bit resolution on each of the sixteen input channels and uses advanced design techniques to achieve low power dissipation at high throughput rates. At a conversion speed of 1Msps, the AS1542 uses 2.4-mA, while in automatic shutdown mode the supply current drops to less than 0.5-µA.

The 16 input channels are software configurable as 16-channel single-ended or 8-channel fully-differential analog inputs. Additionally, a sequencer and channel counter allows continuous or single conversions on selected channels without further user input and interruption of conversions while reprogramming the A/D converter. This allows the channel selection function to be altered while the sequence is in progress.

This AS1542 operates from a single 2.7 to 5.25 V supply and contains a Vdrive (interface drive voltage) function, which enables the serial interface to connect directly to either 3 or 5 V processor systems independent of the A/D converter's supply voltage.

The AS1542 is available in a 28-pin TSSOP package suitable for operating environments ranging from -40°C to +85°C.

For more information, click here.

austriamicrosystems, 1-919-676-5292, www.austriamicrosystems.com

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