ams introduced the AS6200C, a digital temperature sensor IC which offers highly accurate measurements in the temperature range -20°C to +10°C. The performance of the AS6200C makes it easier for designers of refrigerators and data loggers in cold-chain storage equipment to meet demanding targets for system-level accuracy.
The AS6200C’s measurements are accurate to ±0,2°C between -20°C and 10°C, the temperature range over which storage equipment for perishable goods operates. The sensor’s accuracy is guaranteed over the device’s supply voltage range of 1,8 V to 3,6 V.
In temperature control and temperature logging applications, the total error budget is made up of multiple components. By minimising the error at the point of measurement, the designer gains extra headroom for other error and noise sources, such as the heat generated by board-mounted components. The use of the highly accurate AS6200C gives the designer more flexibility to modify other elements of the system design while keeping total error below a specified maximum level.
The AS6200C integrates a sensor front end, 12-bit analog-to-digital converter and digital logic in a small WL-CSP package. It provides a digital output over an I²C interface to any host microcontroller. The device performs on-board digital signal processing, which means that it needs no user calibration, and its linearised output requires no compensation by an external microcontroller.
The AS6200C is intended for use in equipment for storing and transporting food, pharmaceuticals, flowers and other perishable goods, as well as in domestic and commercial refrigerators. It is very well suited to data loggers that comply with the EN12830:1999 class 1 standard.
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