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Single-supply op amps boast 1nV noise performance

Posted: 16 Aug 2007 ?? ?Print Version ?Bookmark and Share

Keywords:single-supply op amps? low noise performance? pinPoint?

ISL28291, ISL28191

Intersil Corp. has released the ISL28190, ISL28290, ISL28191 and ISL28291 devices, the latest addition to its pinPOINT Precision Analog product line.

The devices are claimed to deliver noise performance up to four times better than competitive single-supply op amps. The ISL28X90 sets the new industry standard for single-supply, rail-to-rail output op amps at 1nV/rt(Hz), while the ISL28X91 comes in at just 1.7nV/rt(Hz).

As the industry's first ultralow-noise, single-supply op amps, these devices allow designers to simplify designs by achieving noise performance previously only attained with dual supply devices. This, along with the industry's best harmonic distortion (THD+N) at 0.00017 percent (ISL28X90) and 0.00018 percent (ISL28X91) make this family of rail-to-rail output op amps ideally suited for noise-sensitive audio, medical and industrial instrumentation applications.

These op amps are optimized for operation at 5V and below, with the single channel amplifiers offered in a space-saving SOT23 package while the dual channel amplifiers are offered in a 10-lead MSOP package. Single channel amps in 1.6mm x 1.6mm micro-TDFN package and dual channel amps in the 1.8mm x 1.4mm micro-TDFN package are now sampling.

The combination of superior noise, harmonic distortion and bandwidth performance is in keeping with Intersil's complete pinPOINT Precision Analog product line's commitment to unwavering accuracy over time and temperature.

Available in 6-lead SOT-23 packages, the ISL28190 and ISL28191 devices are priced at $1.58 and $1.32 each, in in quantities of 1,000.

The ISL28290 and ISL28291 devices are priced at $2.61 and $2.38 each in quantities of 1,000 (tape and reel available). Both devices are housed in 10-lead MSOP packages.

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