The MAX31889 digital temperature sensor offers a combination of accuracy and low power consumption, replacing expensive resistance temperature detectors (RTDs) in precise, temperature-sensitive applications. The MAX31825 digital temperature sensor enables up to 64 devices per bus, all parasitically powered by the 1-Wire® bus.
MAX31889: Accuracy, low power consumption, and simple design are essential objectives for designers of pharmaceutical cold chains, medical monitors, and industrial automation applications. Variations as little as 2 degrees Celsius can negatively impact products and processes by limiting a manufacturer's ability to deliver quality products, thus harming the bottom line. The MAX31889 ensures the highest accuracy in the industry with the lowest power consumption, providing robust protection of customer assets. Offering measurement accuracy of ±0.25 degrees Celsius across a wide temperature range, the MAX31889 measures the temperatures of pharmaceutical cold chain products at a fraction of the cost of RTDs and at 35 percent of the power consumption of competing solutions. The MAX31889 comes in a 6-pin µDFN package.
MAX31825: Sensitive processes and applications often require connecting multiple devices in a space-constrained system to measure temperature and protect processes, assets, and equipment from unacceptable variations. Competitive solutions offer the ability to connect up to eight devices and require an additional power cable. The MAX31825 reduces design and wiring complexity by allowing up to 64 devices, all connected to the same single-wire, parasitically powered bus, with an accuracy of ±1 degree Celsius. Each device has a unique code that can be optionally programmed with a location address, simplifying system design. The single-wire versatility enhances system robustness by offering an eightfold reduction in required wiring compared to competing two- or three-wire solutions. The MAX31825, which comes in a 6-bump WLP, also supports longer battery life and extends operating uptime with a low standby current of 2.5 µA, ideal for consumer devices and factory automation.
