ADS7961SDBTRG4

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ADS7961SDBTRG4, is an analog-to-digital converter (ADC) of a five-channel data-acquisition system, designed for low-power, mixed-signal, industrial, and medical applications. This device has a low-power, true 18-bit performance, 140 MSPS throughput rate, with a typical power consumption of 1.40 mW per channel. In addition, the device operates from a single supply (1.8 V to 3.6V) for increased flexibility.

The ADS7961SDBTRG4 is designed to convert analog signals from applications such as temperature sensors, torque sensors, electro-mechanical actuators, as well as signals from medical, aerospace, and industrial equipment into digital values. Utilizing on-chip latency control and microport circuitry, it is able to accurately sample and hold analog signals at much higher speeds than the actual throughput. The ADS7961SDBTRG4 utilizes an array of 5 differential analog channels that support input frequencies up to 200 MHz and peak-to-peak resolutions of 18-bit, resulting in an impressive 2 µV resolution at 3.3V.

The working principle for the ADS7961SDBTRG4 is simple. The device contains a low-noise amplifier, a programmable gain amplifier, a low-pass filter, and a low-startup-time comparator. The amplifier amplifies the signal to a level that allows the comparator to accurately read the signal. The comparator reads the signal, and then determines the corresponding digital value. The low-pass filter is used to ensure that the signal is clean, and the resulting digital value accurately represents the current condition of the signal.

The ADS7961SDBTRG4 is ideal for applications such as temperature, pressure, position, flow, and motion sensors, as well as medical and aerospace applications. The device is offered in a small 24-pin QFN or over-molded LGA package, giving it the flexibility to be mounted directly onto the board or on a heat-sink plate. With a level of performance, accuracy, and flexibility that it offers, the device is suitable for both industrial and medical applications.

With its highly accurate 18-bit resolution, 140 MSPS throughput rate, low-power requirements, and small packages designs, the ADS7961SDBTRG4 is a comprehensive data-acquisition system suitable for applications most stringent conditions. From low-power consumer devices to medical instruments, the device offers a reliable, high-performance solution while keeping power and board space requirements to a minimum.

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