CIRRUS UNVEILS SOC FOR PRECISION MEASUREMENT APPLICATIONS.Leveraging its expertise in applying high-performance analog techniques to solve system-level issues, Cirrus Logic (company) Cirrus Logic - A manufacturer of integrated circuits including the Advanced RISC Machine and display interface processors and cards for use as Windows accelerators (requiring dedicated driver software). http://cirrus.com/. Inc. (Nasdaq:CRUS crus (krus) pl. cru´ra [L.] 1. leg (1). 2. a leglike part. crus ce´rebri ), Fremont, Calif., has unveiled the Crystal CS553x family of precision measurement system-on-chip solutions. Delivering breakthrough levels of accuracy and design flexibility, the new entries incorporate the innovative Crystal MultiPath(TM) amplifier core, a proprietary architecture that enables the devices to offer the world's lowest noise level (6nV/sqrt Hz at 0.1 Hz) and highest resolution (up to 23-bits of true noise-free measurement performance). Highly integrated and competitively priced, the chips are ideal for precision measurement applications requiring a sample rate of up to 4kHz in such markets as process control and medical instrumentation. In addition to its unprecedented performance, the system-on-chip integration of the CS553x family will streamline precision data acquisition system design. By integrating the multiplexer See multiplexor and multiplexing. multiplexer - multiplexor , amplifier and analog-to-digital converter (ADC (1) See A/D converter. (2) (Apple Display Connector) A peripheral connector from Apple that combines digital video display, USB and power in one cable. ) on a single-chip, the new family greatly simplifies analog front-end design for the system engineer, reducing design time and cost. "One of the most complex issues facing today's data acquisition system designer is laying out a circuit board that interfaces the amplifier, the multiplexer and the ADC while achieving the desired system performance," said Eric Broockman, vice president and general manager of Cirrus Logic's Crystal Industrial & Communications Division. "Our CS553x family has resolved this complex issue for the system designer. Thanks to its ease of use and superior analog performance, system designers can now create products with unprecedented analog performance without knowing the black magic tricks This page contains a list of magic tricks. In magic literature, tricks are often called effects. Based strictly upon published literature and marketed effects, there are hundreds of millions of effects; a short performance routine by a single magician may contain dozens of behind board-level analog design, or the need for multiple circuit board revisions." MultiPath Architecture Delivers Performance Breakthroughs The CS553x family includes many technological advancements, such as the new, patented, ultra-low-noise, MultiPath amplifier architecture. This innovative architecture is designed to produce a constant noise level over the entire input range of just 6nV/sqrt Hz, setting a new standard in noise performance. In fact, the architecture eliminates low-frequency related 1/f noise, often associated with competitive discrete bipolar (1) See bipolar transmission. (2) One of two major categories of transistor; the other is "field effect transistor" (FET). Although the first transistors and first silicon chips were bipolar, most chips today are field effect transistors wired as CMOS logic, which op amps. "We have taken a 30-year-old technology - chopper stabilization - and used it in the context of an entirely new architecture to create an amplifier that delivers world-class performance," said Axel Axel: see Absalon. Thomsen, amplifier architect and design manager for Cirrus Logic's Crystal Industrial Division. "Compared to other CMOS-based chopper-stabilized amplifiers, the MultiPath amplifier integrated into our new ADC products offers 1/10th the integrated noise level for the 0.1- to -10 Hz range. This superior noise performance enables a multitude of new system design possibilities." From Semi-Trucks to Sapphires With the CS553x, system designers are able to perform highly precise measurements across a broad range of signal inputs, allowing manufacturers to reap the benefits of using a common hardware platform for multiple product lines. For example, weigh scale manufacturers could use the same chip to make scales that weigh thousands of pounds of freight (to a resolution of less than an ounce) and scales that weigh gems in fractions of carats. The new Crystal CS553x family also enables manufacturers of precision instruments to build analytical devices that far surpass today's performance levels. For example, scientific devices, such as chromatographs, will be able to detect even lower concentrations of trace elements Trace elements A group of elements that are present in the human body in very small amounts but are nonetheless important to good health. They include chromium, copper, cobalt, iodine, iron, selenium, and zinc. Trace elements are also called micronutrients. . Medical devices such as patient monitoring systems and fetal oxygen saturation oxygen saturation sO2 The O2 concentration of blood expressed as a ratio of its total O2-carrying capacity; the OS is a measure of the utilization of O2 transport capacity; sO2 systems will be able to track patient status with much greater accuracy. Fewer Components, Better Design Flexibility The CS553x family of integrated circuits Integrated circuits Miniature electronic circuits produced within and upon a single semiconductor crystal, usually silicon. Integrated circuits range in complexity from simple logic circuits and amplifiers, about 1/20 in. (1. incorporates a number of features that improve manufacturing, design flexibility, testability, and economy. Superior to other instrumentation measurement chips on the market, the CS553x eliminates the need to purchase and configure expensive external components, such as a separate precision resistor resistor, two-terminal electric circuit component that offers opposition to an electric current. Resistors are normally designed and operated so that, with varying levels of current, variations of their resistance values are negligible (see resistance). and amplifier for gain ranging. In addition, the MultiPath architecture includes a patented calibration calibration /cal·i·bra·tion/ (kal?i-bra´shun) determination of the accuracy of an instrument, usually by measurement of its variation from a standard, to ascertain necessary correction factors. engine, which permits per-channel calibration to correct for system or gain error and allows the user to digitally fine-tune the chip for different signal amplitudes ranging from 5mV to 5V. This proprietary technology eliminates costly and time-consuming manual adjustments. Pricing, Packaging & Availability The CS553x family offers a variety of choices including, two bit output preferences (16-bit and 24-bit), multiple pin and channel alternatives (20-pins for 2-channel chips and 24-pins for 4-channel chips) as well as different price/performance options in the range of $6.20 to $13.20 per chip in quantities of 1,000. Packaged in Shrink Small Outline Packages (SSOP SSOP Shrink Small Outline Package SSOP Sanitation Standard Operating Procedures (USDA) SSOP Sanitary Standard Operating Procedures SSOP Sharescan-Open Platform (Ecopy) SSOP Site Security Operational Procedures ), the entire CS553x family is in production and evaluation boards with software are available through distributors. Free Schematic A graphical representation of a system. It often refers to electronic circuits on a printed circuit board or in an integrated circuit (chip). See logic gate and HDL. & Layout Review Cirrus Logic offers comprehensive worldwide customer support to assist customer product development and manufacturing. Applications engineering support, including free confidential schematic and layout reviews may be requested toll-free via 1-800-888-5016, by email from datacq@crystal.com or from your local distributor. Cirrus Logic Inc. Cirrus Logic is a premier supplier of high-performance analog and advanced mixed-signal chip solutions. The company's products, sold under its own name and the Crystal product brand, enable system-level applications in mass storage, audio and precision data conversion. Additional information about Cirrus Logic is available at www.cirrus.com. CS553x Performance Breakthroughs -- Lowest integrated noise levels from 0.1 Hz to 10 Hz for dc measurement applications (process control, weigh scale, medical instrumentation and scientific analysis) in the industry, permitting greater than 21-bits of true measurement performance on a +/-80 mV signal: -- 1/10 the spot noise level at 0.1 Hz of any other Bipolar instrumentation amplifier Instrumentation amplifier A special-purpose linear amplifier, used for the accurate amplification of the difference between two (often small) voltages, often in the presence of much larger common-mode voltages, and having a pair of differential (usually , delivering accurate measurements of ultra low input frequencies; -- 1/3 the integrated noise from 0.1 Hz to 10 Hz of any other Bipolar instrumentation amplifier, providing precise measurements over the entire input range; -- 1/10 the integrated noise from 0.1 Hz to 10Hz of any other CMOS-based chopper stabilized amplifier, offering best of class performance; -- 1/10 to 1/30 the noise level of the nearest competitive integrated A/D converter (Analog/Digital converter) A device that converts continuously varying analog signals from instruments and sensors that monitor conditions, such as sound, movement and temperature into binary code for the computer. solution for the same input range and bandwidth, guaranteeing the user the most bits of error free data; -- 1/25 the offset drift of the most competitive Bipolar instrumentation amplifier, enabling more precise measurements over temperature; -- 1/2 the excitation excitation Addition of a discrete amount of energy to a system that changes it usually from a state of lowest energy (ground state) to one of higher energy (excited state). For example, in a hydrogen atom, an excitation energy of 10. voltage (5V versus the industry-standard 10V) required for strain gauge strain gauge Device for measuring the changes in distances between points in solid bodies that occur when the body is deformed. Strain gauges are used either to obtain information from which stresses in bodies can be calculated or to act as indicating elements on devices for measurements, facilitating the transition to very high-resolution measurements with low drift; -- Highest resolution for ultra low-level signals (>18 bits for a 5 mV input span and 23-bits for a 2.5V input span), laying the foundation for new breakthroughs in industrial, medical, and scientific monitoring systems. For more information, call 510/249-4244. |
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