LTC1408CUH-12#PBF

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Data Acquisition is the process of gathering data from live sources such as sensors, actuators or digital inputs. Analog to Digital Converters (ADC) are one of the most important components in this process, providing the mechanism that enables real-world analog signals to be converted into digital ones. The LTC1408CUH-12#PBF is a powerful low-power, high–accuracy 8-channel differential device with 12-bit converter resolution that integrates a variety of features making it well suited for a range of data acquisition applications. This article outlines the application field and working principle of the LTC1408CUH-12#PBF.

Applications

The LTC1408CUH-12#PBF is suitable for a range of applications across industrial, medical, scientific, and research applications. The device supports a wide range of input signals for making precise, accurate, and repeatable measurements in demanding environments. With its low-input capacitance, the amplifier is especially suitable for high-input impedance applications, such as resistance or strain gauge measurements. The ADC has a relatively low power consumption and low cost, making it ideal for low-volume or small form factor applications, including portable or wearable devices. The wide voltage range, high channel densities and flexibility, combined with even channel-to-channel gain matching, make it ideal for use in multi-channel data acquisition systems.

Working Principle

The LTC1408CUH-12#PBF performs its data acquisition tasks by following three main processes: First, voltage is converted to an analog equivalent for a given sampling time. Differential inputs at each channel convert the voltage level to a proportional current level. Next, current is converted to a proportional digital equivalent by the internal analog-to-digital (A/D) converter. Finally, the digital equivalent is stored in the onboard register before it can be output externally.

The A/D converter performs a successive approximation technique to convert the analog voltage signal to a digital form. This technique works by initially setting the most significant bit (MSB) of the A/D converter’s digital output. The A/D converter then compares the analog signal with a reference signal at the MSB output, and sets the bit accordingly. This process repeats until the least significant bit (LSB) of the digital output is determined.

The LTC1408CUH-12#PBF also features an internal oscillator, which allows for synchronized and asynchronous clocking of the A/D conversion. The device also features Schmitt triggers for analog input, as well as digital output for triggering external devices. With its low-power consumption and wide operating temperature range, the device is well-suited for a range of applications across industrial, medical, scientific, and research applications.

Conclusion

The LTC1408CUH-12#PBF is a powerful low-power, high-accuracy 8-channel differential device with 12-bit converter resolution. It offers a wide range of features that make it ideal for applications across industrial, medical, scientific and research. The device follows a successive approximation technique to convert an analog voltage signal to a digital form. It also features an internal oscillator and Schmitt triggers for analog inputs and digital output for triggering external devices. With its low-power consumption and wide operating temperature range, the LTC1408CUH-12#PBF is well suited for a range of data acquisition applications.

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