High-Precision ICs Deliver Superior Accuracy for Industrial, Scientific Instrumentation Applications

AUSTIN, Texas – April 18, 2006 – With the expansion of its family of cost-effective, high-precision operational amplifier (op amp) integrated circuits, Cirrus Logic Inc. (Nasdaq: CRUS) has simplified the daunting task of amplifying low-level analog signals within scientific and industrial measurement applications.

The dual-channel CS3004 and CS3014 and single-channel CS3003 and CS3013 integrated circuits deliver performance that results in dramatically higher accuracy than competing op amp solutions. The CS3013 and CS3014 also offer low power consumption, which is an important feature for new generations of battery-powered portable instruments and personal monitoring applications such as gas safety detectors.

“Often within the signal path of many industrial and scientific instrument applications the operational amplifier is what limits the overall performance of the circuit,” said John Paulos, vice president and general manager of Cirrus Logic’s Industrial Products Division. “The CS300X family offers a superior combination of high gain and low errors that yields exceptional accuracy, making these integrated circuits ideal for applications performing the highest-precision measurements.”

Applications such as temperature/safety monitoring and industrial process controllers require not only minimal errors due to noise, leakage and drift but also extremely high gain to preserve measurement accuracy. These CS300X family fulfills these requirements, with input leakage of only 100 picoamperes and an input offset voltage of only five microvolts (CS3003/CS3013; 10 microvolts in the CS3004/CS3014) with drift of 0.05 microvolts per degree. Critical noise errors are limited to 17 nanovolts per root-Hertz in the CS3003 and CS3004 (22 nanovolts per root-Hertz in the CS3013/CS3014), which is held flat above 2 kHz bandwidth.

Accuracy in high-resolution measurement applications is ensured with exceptional open-loop gain performance of 150 dB in the CS3003/CS3004, while the low-power CS3013/14 provides 135 dB. Operating from single or bipolar power supplies of 2.7 V to 5 V (plus/minus 1.35V to plus/minus 2.5V), consumption is an impressive 1000 microamperes per amplifier in the CS3003/CS3004 and only 500 microamperes each in the CS3013/CS3014. In addition to the popular small-outline eight-pin QFN package, these devices will also be available in the new leadless 4 x 4 mm leadless QFN package.

Pricing and Availability

The dual-amplifier CS3004 and CS3014 are priced at $1.52 in quantities of 1,000. The CS3003 and CS3013, which are both single amplifiers, are scheduled for release in June of 2006 and will be priced at $0.99 in quantities of 1,000.

Cirrus Logic Inc.

Cirrus Logic develops high-precision analog and mixed-signal integrated circuits for a broad range of consumer and industrial markets. Building on its diverse analog mixed-signal patent portfolio, Cirrus Logic delivers highly optimized products for consumer and commercial audio, automotive entertainment and industrial applications. The company operates from headquarters in Austin, Texas, with offices in Colorado, Europe, Japan and Asia.

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Safe Harbor Statement

Except for historical information contained herein, the matters set forth in this news release, including statements regarding anticipated volume production in June 2006, are forward-looking statements. These forward-looking statements are based on our current expectations, estimates and assumptions and are subject to certain risks and uncertainties that could cause actual results to differ materially from our current expectations, estimates and assumptions and the forward-looking statements made in this press release. These risks and uncertainties include, but are not limited to, the following: overall conditions in the semiconductor market; our ability to introduce new products on a timely basis and to deliver products that perform as anticipated; hardware or software deficiencies; our dependence on subcontractors for assembly, manufacturing, packaging and testing functions and the risk factors listed in our Form 10-K for the year ended March 26, 2005, and in other filings with the Securities and Exchange Commission.

Cirrus Logic and Cirrus are trademarks of Cirrus Logic Inc. All other product names noted herein may be trademarks of their respective holders.

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