ISL26311FBZ-T7A

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Data Acquisition – Analog to Digital Converters (ADC) is a process of converting an analog signal into a digital signal. ADCs are used in a variety of applications, and one of them is the ISL26311FBZ-T7A, a low-power, 10-bit, 8-channel, simultaneous or non-simultaneous Sampling Analog-To-Digital Converter (ADC) with on-chip Signal Processing (SP). This is a high-speed, low-power ADC converter ideal for precision data acquisition applications like industrial automation, medical and consumer electronics.

The ISL26311FBZ-T7A features a wide input dynamic range of only 0.6 V to 5V, with 4 V minimum gap between support channels, enabling it for wide voltage supply applications. It incorporates the low-noise ChargeBal™ auto-zeroed preamplifier to achieve high performance down to 0.6 V with minimal power consumption. Its high accuracy and low conversion latency makes it perfect when precise measurements of several signals are required.

The ISL26311FBZ-T7A provides a 10-bit resolution output with selectable simultaneous or non-simultaneous sampling modes with up to 8 channels, that makes it perfect for multiplex systems with up to 8 channels. It also features a track and hold (T/H) module per channel, keeping the minor levels of signal while the conversion time is shorter. As it operates with very low power, the device can virtually run with no cooling system over a wide temperature range of -40 to +125°C.

The working principle of the ISL26311FBZ-T7A is based on a successive approximation (SAR) architecture. This is a technique that estimates the analog value of an input signal, using an electrical converter and a comparator, with various logic operations.

An analog voltage is the first picked from the multiplexer to be digitized. Then the SAR applies a successive approximation algorithm, comparing the input signal with a reference value, and decides the digital output, consisting of a set of binary values.

The process begins with a full-scale comparison and by the end of the process a binary number is determined. For each comparison, the reference voltage is proportionally related to the difference in bit values. During the process, several logic logic operations are executed, such as bit addition or bit division. A total of 10 iterations of this process give the 10-bit resolution output of the ISL26311FBZ-T7A.

The ISL26311FBZ-T7A is ideal for applications requiring both accuracy and low power, such as industrial automation, medical, consumer electronics, and more. The low-power, 10-bit, 8-channel, simultaneous or non-simultaneous Sampling Analog-To-Digital Converter (ADC) is best suited for measuring multiplexed signals with very fast conversion rates of 1.8Msps.

Not only is ISL26311FBZ-T7A perfect for multiplexing systems, but it also has other great features that make it a great choice for data acquisition applications of all kinds. Its wide input dynamic range, low-noise ChargeBal™ auto-zeroed preamplifier, and high accuracy, combined with its low conversion latency, make it total a great choice for precision data acquisition applications.

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