LTC2190IUKG

Series:	*
Part Status:	Obsolete

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Introduction

The LTC2190IUKG is a highly accurate and low power ADC that is ideal for data acquisition and mixed signal conversion applications. This ADC has a wide input range, low noise, and can sample at up to 100kHz. It is designed to take analog signals and convert them into digital format. The low power consumption and high accuracy make this ADC an attractive option for many types of applications.

Application Field

The LTC2190IUKG can be used in a wide range of data acquisition and analog-to-digital conversion applications. It can digitize signals from sensors, microphones, and other analog input sources to ensure reliable and accurate data acquisition. The wide input range makes it particularly suitable for data acquisition applications that require precise high resolution measurements. Additionally, its low noise performance makes it suitable for use in noise critical applications. The ADC can be used in a variety of system designs, from industrial-level applications to consumer products. It is also widely used in medical systems, instrumentation, and other areas where accurate and low noise performance are important.

Working Principle

The LTC2190IUKG is a differential input ADC that utilizes delta-sigma modulator technology to convert analog signals into digital output. It samples signals with a differential input ranging from 5mVpp to 2.5Vpp, and has a maximum conversion rate of 100kHz. The ADC has low power consumption (only 2.75 mW at 1.8V) and high accuracy (±0.025%). The ADC operates on a single power supply, typically a 3.3V supply, and has three simple digital input pins for controlling conversions and setting parameters. The digital interface allows for easy connectivity to a host controller as well as configuration of the ADC\'s internal registers. In order to convert the analog input signal into its digital representation, the LTC2190IUKG first performs a calibration process. This process adjusts the volume of the input signal to ensure good linearity, and also sets the gain and offset of the ADC. Once the calibration is complete, the ADC begins the conversion process. It samples the analog input signal at the set rate and performs successive approximations in order to convert the signal into a digital representation.

Conclusion

The LTC2190IUKG is a highly accurate and low power ADC that is ideal for data acquisition and mixed signal conversion applications. It has a wide input range and low noise that makes it very suitable for high resolution measurements. Additionally, its low power consumption and simple digital interface make it attractive for a variety of system designs. With its delta-sigma modulator technology, the LTC2190IUKG can quickly and accurately convert analog signals into digital format.

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