XTR116UAG4

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The XTR116UAG4 is an integrated circuit that provides analog-to-digital conversion of up to five channels of sensor inputs, with a sensing range of -40°C to +125°C. It includes an internal low-power temperature sensor, and requires minimal external components. This device is ideal for use in the design of temperature monitoring and control systems, as it provides accurate and rapid measurement of temperature.

Application Field

The primary application field for the XTR116UAG4 is in the design of temperature monitoring and control systems. It is ideal for use in automotive, industrial, and medical applications. It can be used to measure the temperature of liquids and gases, or of mechanical components. It is also well-suited to applications where multiple temperature sensors need to be monitored simultaneously.

Features.

The XTR116UAG4 features five temperature sensing channels, each with a wide sensing range of -40°C to +125°C. The device offers high accuracy (±2°C) and low power consumption (20μA typ), and with its on-chip temperature sensor, there is no need for external components. Additionally, the XTR116UAG4 has built-in hysteresis and alert functions that allow for rapid temperature event detection. In addition to temperature sensing, the device also supports direct voltage measurement from 0V to 5V.

Working Principle

The XTR116UAG4 employs a delta-sigma analog-to-digital converter (ADC) to measure each temperature channel. The ADC converts the analog input to a digital representation which is output through a dedicated two-wire serial interface. The data is transmitted as a single-byte, two’s complement digital result. The device is powered by a single supply, and a power-on reset function is included to provide a stable measurement output.

The ADC is triggered by two digital watchdog timers that can be individually enabled or disabled for each input channel. The watchdog timer ensures that temperatures are accurately measured, even if the temperature variations exceed the resolution of the ADC. Additionally, the XTR116UAG4 supports a “snapshot” mode, in which all five channels can be enabled dynamically. This feature allows for rapid real-time temperature measurement.

The device features built-in hysteresis and alert functions that can be used to detect temperature anomalies quickly. For each channel, an upper and lower hysteresis trigger can be configured for a maximum of 256 temperature steps. When triggered, a logic-level alert signal is sent out, so that the user can take corrective action immediately.

The XTR116UAG4 also includes an internal low-power temperature sensor, which operates in either mode 4 or 5 of the two-wire serial interface. The temperature readings from this sensor are output digitally, and can be used to monitor the external temperature, or to provide additional temperature compensation when required.

In summary, the XTR116UAG4 is an ideal solution for temperature monitoring and control systems. It features five temperature sensing channels, with high accuracy, low power consumption, and a wide measurement range. The device also offers fast response, direct voltage measurement, and on-chip temperature sensing and alert functions.

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