LTC2379CDE-18#TRPBF

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Data Acquisition - Analog to Digital Converters (ADC) forms an integral part of many electronic systems. One particular device that has been gaining popularity lately is the LTC2379CDE-18#TRPBF. This device can easily be integrated in commercial applications and supports a wide range of data formats including 2’s complement and unipolar (offset binary) formats. This application note provides an overview of this device’s operating principles and some potential applications.

The LTC2379CDE-18#TRPBF is a high performance analog-to-digital converter (ADC). It has an 18-bit resolution with a wide input range of ±2V. This device utilizes the successive approximation register (SAR) technique at speeds up to 3MSPS. It also features selectable conversion gains from x1 to x256, allowing for excellent dynamic range performance and suitability for a variety of input ranges. This device has a low power consumption of only 35mW and small chip size of 5mm².

The LTC2379CDE-18#TRPBF uses SAR technology to generate accurate digital output from analog input data. In this technique, the ADC measures the analog input voltage by progressively guessing the closest digital code until it precisely matches the analog input voltage. This is achieved by successively testing one bit of the output code at a time. Each new bit tested is the result of the previous one, either 0 or 1. After all the bits have been tested and the output code completely matches the analog input voltage, the analog-to-digital conversion is complete.

The device further features low noise and low power dissipation with excellent linearity, dynamic performance and signal-to-noise (SNR) ratio The SPI-compliant 3-wire interface features user-selectable data format, addressing and data rate. This allows the user to tailor the device to their application needs.

With its wide input range and flexibility in data conversion, the LTC2379CDE-18#TRPBF is well-suited for numerous applications including vector network analyzers (VNAs), time domain reflectometry (TDR)/impedance-profiling systems, ECG monitors, automotive test instruments and industrial process control. Additionally, this device can enable high performance data acquisition applications such as ultrasound, medical imaging, instrumentation test and control.

The LTC2379CDE-18#TRPBF allows for simple integration with on-chip features such as power-on-clear, internal reference voltage, temperature compensation and active-low, level-sensitive asynchronous clear (ACLC). Furthermore, each device is backed by a no-question asked one-year warranty and is tested to military standards.

In summary, with its superior features and performance, the LTC2379CDE-18#TRPBF can easily be integrated into high performance analog-to-digital conversion systems. The device is reliable and convenient for various applications and can advantageously replace laborious programmable logic designs.

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