LTC2301CDE#PBF

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Data Acquisition - Analog to Digital Converters (ADC)

The LTC2301CDE#PBF is a high performance ADC that is designed primarily for acquiring digital representations of analog waveforms for applications involving, for example, digital audio, data acquisition and vibration analysis. The LTC2301CDE#PBF integrates a low power successive approximation register (SAR) digital-to-analog converter (DAC), a low power analog-to-digital converter (ADC) and an onboard reference.

Application field

The ADC features a wide input voltage range and 16-bit accuracy making it ideal for applications that require precise, low noise signal conversion and fast throughput.

The LTC2301CDE#PBF can work as a standalone ADC, or it can be cascaded with other ADCs or high-resolution analog front ends such as thermocouples and strain gauges in embedded data acquisition systems. It is also suitable for signal conditioning and data conversion in high-precision signal processing systems.

Furthermore, it is designed to operate with a wide range of power sources such as a battery, 5V or 3V supply and can interface with low-voltage logic levels such as I2C, SPI and UART without the need for external level shifters or signal conditioners.

With its precise signal to noise ratio and low power consumption, it is suitable for use in portable and battery powered devices, such as measurement and instrumentation systems.

Working Principle

The working principle of the LTC2301CDE#PBF is based on the SAR principle. The ADC consists of a DAC, a comparator and a differential amplifier. The SAR is responsible for controlling the amount of charge transferred to the capacitor. The output voltage of the DAC is compared with the input signal. The output of the differential amplifier is used as the reference voltage for the DAC.

The ADC also incorporates an internal clock for sampling and conversion. The conversion is triggered by an external start signal. The SAR is operated in a successive approximation cycle which repeatedly steps towards the correct output. The number of bits of the output is determined by the resolution of the DAC and the number of bits of the reference.

The LTC2301CDE#PBF is designed to operate from a low power supply and is effective in extending battery life by consuming a minimum amount of power. In addition, its on-chip reference ensures high accuracy of the ADC without the need for an external voltage reference.

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