CS5530-ISZ

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Data Acquisition - Analog to Digital Converters (ADC) is a general technology that converts a continuous electrical signal such as an analog electric current or voltage into a digital signal or binary code. A key purpose of an ADC is to allow for the introduction of a physical signal into a digital system. The CS5530-ISZ is a precision high-speed complemented-output 16-bit A/D converter from Intersil Corporation. This device features a differential high common mode rejection input stage and boasts a typical full-scale error of ±0.1%.

Applications of CS5530-ISZ are most relevant in noise filtering and high-powered audio systems that require accurate and precise sound input such as with telephones or headsets. The device does an excellent job filtering unwanted noise or distortion for clear, accurate sound delivery. This can also be used in automotive systems for the capture of temperature and pressure information, as the device has a temperature range of -40° to +125°C and allows for the accurate capture of fast-changing analog signals.

The working principle of the CS5530-ISZ is based around its high-precision differential input stage, allowing interfacing with op-amps or sans-amp systems no matter their range of output. The amplifier stage contains proprietary auto-zero circuitry, allowing for inherently low offset voltages of approximately ±28uV, no matter the temperature of operation. Onboard bandgap voltage reference along with its differential input circuit enables excellent common mode rejection ratio of 115dB letting signals with large DC offset components to be processed accurately.

The device also features an integrated high performance sample-and-hold amplifier, capable of sampling data with 6ns typical settling time. This is followed by a 14-bit segmented D/A converter which is used for successive approximation till 16-bits of precision are reached, completing the conversion process. The result is an output data rate of up to 1.8Msps and data accuracy of 15.5 bits typically. For EMC compatibility, the device incorporates advanced techniques like clock gating and soft start that allow for a maximum total harmonic distortion of –65dB at a 1.5kHz output level.

In conclusion, the CS5530-ISZ is a powerful and reliable device that offers an extremely accurate 16-bit resolution which enables excellent method of solving noise-related conflicts and accurately transposing analog signals into digital ones. Preferred in audio systems and automotive applications, the device offers precision and maximum compatibility to a range of amplifiers, DC and AC signals, allowing reliable data capture within a temperature range of -40° to +125°C.

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