LTC2445IUHF#PBF

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Data Acquisition - Analog to Digital Converters (ADC) comes in different types and forms to meet the needs of many different applications. One type of converter is the Linear Technology LTC2445IUHF#PBF, a high-performance 24-bit, low-power, single-supply sigma-delta ADC.

The LTC2445IUHF is a pin-compatible and functionally comparable upgrade over the 24-bit SAR (successive approximation register) ADC and provides around 12.5 times more dynamic range and up to 4 times more throughput than its SAR counterpart, without compromising on power consumption.

The LTC2445IUHF is ideal for long battery-life and low-power systems, replacing SAR ADCs and thermocouples, as well as other temperature measurement and data acquisition applications. It can be used in medical and industrial systems, remote data acquisition systems, and even in automotive applications.

The LTC2445IUHF offers a maximum conversion rate of 1.6Ksps (kilo samples per second) with a maximum current consumption of only 2.6mA and a low shutdown current of 30nA with a 1.8V analog supply. This makes it suitable for applications such as medical/industrial monitoring systems, automotive and IoT (Internet of Things) temperature measurement where power conservation, high accuracy and low cost are equally important.

The 24-bit ADC is configured easily with a set of simple control pins. These pins enable the user to configure the LTC2445IUHF for different operations, such as the speed of conversion, the readback control of configuration register, and the power supply voltage.

The LTC2445IUHF uses delta-sigma architecture, which takes an analog signal and converts it into digital data in an extremely power-efficient manner. This method enables the inclusion of large numbers of analog channels, significantly reducing the cost and complexity of the instrument.

The signal is converted using successive comparison of the analog voltage with a digital reference voltage sampled at high speed. The comparator output is a stream of digital 1s and 0s that are then sampled and decimated to the desired resolution. The faster the sampling frequency is, the faster the speed of conversion and the larger the range of data that can be accurately converted. The LTC2445IUHF offers up to 24-bit output resolution with a sampling rate from 16ksps to 1.6ksps.

The LTC2445IUHF includes several innovative features that help to reduce power consumption and improve accuracy. These include an adaptive oversampling engine and a low-noise mode that improves the signal-to-noise ratio. It also includes an auto-zerothroughput mode, which enables the ADC to operate in the most efficient manner for the application.

The low-power capabilities of the LTC2445IUHF are coupled with a number of features designed to make data acquisition easier and faster. This includes an SPI interface that is capable of transmitting data up to 20Mhz, as well as a high-speed 2-wire interface, providing high-speed data transmission up to 10MHz.

In summary, with its superior performance, low power consumption and numerous other features, the LTC2445IUHF analog to digital converter is an ideal device for a wide range of data acquisition applications. Its simple control pins, fast converters and extensive feature set makes it suitable for a variety of applications, from industrial and medical monitoring to automotive and IoT.

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