LTC2249IUH#TRPBF

Data Acquisition - Analog to Digital Converters (ADC)

LTC2249IUH#TRPBF is a highly accurate, high performance A/D converter. It is one of the few products on the market that can convert analog signals directly to digital signals without the need for extra components. This converter offers a wide range of input ranges and performance specifications, designed for applications requiring precision accuracy, high speed conversion, and wide dynamic range.

Application Field

The LTC2249IUH#TRPBF can be used in a variety of applications such as medical imaging, digital video, audio/video processing, motion/position sensing, and data acquisition systems. It is ideal for applications requiring high resolution with precise accuracy, offering a wide range of input ranges and excellent performance specifications.

In medical imaging, the device can be used to convert high resolution signals from medical imaging devices such as ultrasound, both in the field and within the hospital. It can be used to digitize the image and deliver precise output values without the need for coarse quantization or offset errors.

In digital video, the LTC2249IUH#TRPBF can be used to convert input signals from security cameras and other CCTV equipment to digital signals. In this way, it can deliver high quality video without sacrificing resolution or accuracy.

In audio/video processing, the converter can be used to digitize and encode audio signals for digital media content. This allows for high quality audio and video recording, and can be used for multiple channels with precision accuracy.

For motion and position sensing, the device is ideal for applications such as robotics, in which precise and accurate data is required to accurately track movement and positioning. It can detect movement with a resolution of 10-mV, making it one of the most precise motion and positioning sensors available.

Working Principle

The LTC2249IUH#TRPBF is based on a sophisticated Delta-Sigma modulator, or delta-sigma converter. Delta-sigma converters convert analog signals to digital signals by utilizing the theory of delta-sigma modulation. This modulation technique works by oversampling the input signal and using the difference between the input and sampled signals (the delta value) and the error between the samples (the sigma value) to generate a digital signal.

The operation of the LTC2249IUH#TRPBF is based on a 3rd order delta-sigma modulator and is designed for precision accuracy. This delta-sigma modulator utilizes a multi-bit or ‘crossing-based’ sigma-delta architecture, which allows it to accurately measure an input signal with a resolution of 10-bits or 1 part in 1024 at a maximum sampling rate of 2 MSPS.

The converter also features an on-chip JFET-input op amp and several digital background calibration words. These features allow the circuit to maintain its high accuracy and linearity throughout the full temperature range specified by the manufacturer. The device also features a digitally programmable offset, gain, and sample rate adjustment, allowing the device to be tailored for specific applications with precision accuracy.

Conclusion

The LTC2249IUH#TRPBF is a highly accurate and customizable A/D converter designed for applications involving precision accuracy and high speed conversion. It is excellent for a variety of applications that require accurate measurement and conversion of analog signals to digital signals, including medical imaging, digital video, audio/video processing, motion/position sensing, and data acquisition systems. The device is based on a 3rd order delta-sigma modulator, and is designed for precision accuracy with a resolution of 10-bits and a sampling rate of up to 2 MSPS.