LTC2485IDD#TRPBF

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Analog-to-digital conversion (ADC) plays an important role in data acquisition and measurement. The Texas Instruments 24-bit, sigma-delta analog-to-digital converter (ADC), LTC2485IDD#TRPBF, offers high performance, low power consumption, and small packaging. This device is suitable for applications such as low-side current sensing, battery management, and wide dynamic range systems, as well as spectroscopy and precision data acquisition.

The primary function of the LTC2485IDD#TRPBF is to convert an analog input signal with a resolution of 24 bits into a digital output having the same resolution. This is accomplished using a Sigma-Delta converter, which is a type of Delta-Sigma Modulator. The converter processes the analog input signal by converting it into a sequence of digital pulses, which it then decodes into the corresponding digital output.

The Sigma-Delta converter performs its conversion with very low power consumption, regardless of the resolution format. This is because the converter only needs to sample and take one measurement every cycle, as opposed to successive approximation, which requires multiple sample/measure cycles for each conversion.

In addition, the LTC2485IDD#TRPBF provides several features that optimize the efficiency of the conversion process. Low jitter clock output, differential reference, and low power dissipation are among these features. The built-in multiplexer allows the user to choose up to four differential or single-ended input signals per conversion cycle. The differential reference design also reduces common-mode noise that could otherwise degrade the accuracy of the output.

The LTC2485IDD#TRPBF supports differential signal measurements up to 3.3V and single-ended measurements up to 5.5V. The converter can also be externally connected to a reference voltage for very precise measurements. It is capable of converting analog input signals with a range of 0V to 5.5V with a full-scale span of 16 ppm (parts per million). The low power consumption of the converter makes it ideal for battery-powered applications.

One of the most notable features of the LTC2485IDD#TRPBF is its high resolution of 24 bits. This enables it to convert very small changes in the analog signal with minimal error. The high resolution also makes it suitable for precision applications that require a large dynamic range and low noise. The device is usually used in a variety of applications, including temperature and pressure measurements, current sensing, and medical instrumentation.

In summary, the LTC2485IDD#TRPBF provides an excellent solution for applications that need high resolution, low power consumption, and small packaging. The Sigma-Delta converter is extremely reliable, offering very low jitter and low power dissipation even at 24-bit resolution. The multiplexer allows the user to select the desired input signals and the differential reference design helps to reduce noise that could degrade the accuracy of the output. The converter can measure a wide range of analog signals and is suitable for precision applications that require a large dynamic range.

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