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ADI op amps offer high speed, rail-to-rail output

Posted: 27 Aug 2004 ?? ?Print Version ?Bookmark and Share

Keywords:analog devices? adi? operational amplifier? ada4851-1? ada4851-2?

Analog Devices Inc. (ADI) announced that they have developed a family of operational amplifiers that deliver many of the performance benefits usually found in more expensive amplifiers, such as high speed, rail-to-rail output and excellent differential gain and phase.

The ADA4851-1 (single), ADA4851-2 (dual) and ADA4851-4 (quad) voltage-feedback rail-to-rail output op amps are suitable for high-volume consumer applications such as standard-definition TV, cable STBs, as well as emerging applications like personal video recorders, portable media players and automotive telematics.

The ADA4851-x family combines a 175MHz bandwidth, 250V/?s slew rate and 0.1 percent settling in 25ns with a quiescent current of 3mA /amplifier. They provide true single-supply capability, allowing the signal levels on the input to extend 200mV below negative rail. In addition, the output can swing to within 50mV of either rail.

With 0.1dB flatness out to 15MHz and differential gain and phase of 0.05 percent and 0.05 degrees respectively, these new op amps are ideal for video applications. They work well with the company's ADV719-x family of video encoders and the new ADV718-x generation of multi-format video decoders.

Members of the ADA4851-x family are available in SOT23-6, ?SOIC-8 and TSSOP-14 packaging options. In 1,000-piece quantities, the ADA4851-1 is priced at 55 cents per unit, the ADA4851-2 at 79 cents and the ADA4851-4 at $1.09. The ADA4851-x family is sampling now and will be available in production quantities by November.

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