LTC2493CDE#TRPBF

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Data Acquisition - Analog to Digital Converters (ADC) rely on the principle of measuring the input signal digitally and outputting a corresponding digital signal. The field of digital signal processing has grown significantly in recent years and LTC2493CDE#TRPBF is a perfect example of this progression. It is an ultra-high resolution, 28-bit sigma-delta analog-to-digital converter (ADC). This device utilizes delta-sigma architecture, with the ability to measure true differential and single-ended inputs and a built-in cold junction compensator for use in a wide range of temperature environments. With its highly-accurate, low-power measurement capabilities, it forms the perfect component for applications focused on medical, industrial, embedded systems, and other specialized fields.

The LTC2493CDE#TRPBF is a monolithic solution that provides high accuracy and precision for single-ended and differential signals ranging from 0.2V to 4V. The single-chip design contains a low-noise analog-to-digital converter (ADC) and a true differential input. It features a selectable rejection setting for high signal-to-noise measurements, allowing for lower power consumption than competitive products. It also supports 24-bit resolutions and wide temperature operating ranges from -40° to 85°C.

The LTC2493CDE#TRPBF also includes an intelligent sleep mode feature, allowing it to measure low-duty cycle signals down to 200µA. Furthermore, it has a programmable low-pass filter with four frequency settings, making it ideal for fluctuating and unpredictable input signals. For further design flexibility, the device has an external reference input, allowing for full-scale accuracy of up to 0.4%.

The design of the LTC2493CDE#TRPBF improves upon previous models by utilizing a high-performance, ultra-low power ADC core that is capable of high accuracy and low noise measurements. This core is coupled to a low-noise, high-gain input stage, allowing for single or differentially-balanced signals to be accurately digitized in both the linear and logarithmic domains. The internal oversampling rate is adjustable and user selectable, with the option to lower the sampling rate to reduce power consumption. Additionally, the internal clock is extremely stable and precisely adjustable, allowing for a wide range of conversion speeds.

The utility of the LTC2493CDE#TRPBF is further extended by its high input impedance and wide dynamic range. Both of these features are critical for accurate and precise measurements in the entire range of its input signals from 0.2V to 4V. For further accuracy, a low-pass filter elegantly removes unwanted analog artifacts, allowing for highly precise and clean digital signals.

The LTC2493CDE#TRPBF is designed for low-power applications, meaning that it consumes less than 100µA with a 1.8V supply voltage. It also has a shutdown mode, meaning that it can be powered-down when not in use. Furthermore, it is housed in a compact QFN package, allowing it to be mounted directly onto a PC board, thereby saving space, decreasing power consumption, and improving system throughput.

The exciting features mentioned above make the LTC2493CDE#TRPBF ideal for applications such as remote sensing, medical test and measurement, industrial process control, and embedded systems.It is a highly reliable, cost-effective solution to many of the modern data-acquisition needs.

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