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ADI claims 'most flexible' multichannel DACs

Posted: 09 Feb 2007 ?? ?Print Version ?Bookmark and Share

Keywords:DAC? DAQ? iCMOS? ADI? converters?

DACs from ADI

Analog Devices Inc. has introduced what it touts as the industry's smallest and most flexible multichannel DACs. Suitable for designers needing flexibility when specifying converters for high-voltage applications, such as factory process control, instrumentation and DC set-point-control applications, the offering includes 12 converters ranging from 12bit to 16bit dual- and quad-channel devices operating over a wide voltage range on either single or dual power supplies.

In addition, the highly configurable DACs feature software-programmable, unipolar and bipolar voltage output ranges that can be independently set per channel. This gives designers the option to eliminate a number of discrete components, such as precision resistors, switches and external amplifiers.

Board space savings
Housed in small, pin-compatible TSSOP packages, the converters are more than 40 percent smaller than comparable devices. Eliminating discrete components, plus the small package size, translates into board space savings of as much as 70 percent when compared to existing discrete solutions.

"With our new family of multichannel DACs, industrial designers can reduce board size and increase reliability in their system with any one of 12 highly integrated parts that contain all the components necessary to perform voltage switching," said Mike Britchfield, product line director for precision data converters, ADI. "These highly configurable devices enable a single board or module design to serve multiple applications, such as instrumentation and DAQ, without the need for jumpers to obtain different versions of the board. In addition, by taking advantage of the AD5754R's 16bit performance and excellent total unadjusted error (TUE), designers can reduce cost by eliminating time-consuming factory calibration sequences."

iCMOS manufacturing process
ADI's proprietary iCMOS industrial manufacturing process is used to achieve high voltages needed by industrial applications, while leveraging the integration and cost benefits of submicron process geometry. When designed into programmable logic controller (PLC) analog output modules or DAQ cards, the flexibility of the output range, operation with multiple supplies, and specified TUE combine to eliminate mechanical jumpers and factory calibration sequences. This results in faster design cycles, accelerated time-to-market and reduced cost. The flagship component in the AD57xx DAC familythe 16bit monotonic AD5754Rachieves an accuracy level of 0.1 percent (max) TUE, and includes a precision 5ppm/C internal reference.

All of the devices in the AD57xx family are housed in a 24-lead TSSOP and sample units are available today. Pricing ranges from $3.50 for the 12bit dual device with 0.5 LSB INL to $10.05 for the 16bit quad device with 8 LSB INL, 0.1% TUE.

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