TEXAS Instruments has revealed four new sensing circuits to help solve industrial design challenges.
The new sensing integrated circuits (ICs) allow engineers to accurately sense key parameters like temperature, ambient light, humidity, proximity, fluid levels and more in tight spaces with very low power.
The TMP007 is a highly integrated, non-contact infrared (IR) temperature sensor. The new sensor features an integrated math engine, which performs calculations on-chip for direct reading of the object’s temperature, and delivers low power consumption of only 675 uJ per measurement.
The TMP007 sensor measures 1.9mm by 1.9mm by 0.625mm, allowing designers to monitor temperature in space-constrained industrial applications, including protection relays and process control equipment, and other factory and building automation applications.
The HDC1000 integrated humidity and temperature sensor allows designers of building control equipment to implement accurate, energy-saving climate control in small spaces.
The sensor also caters to designers of home appliances and consumer goods, allowing them to easily add humidity sensing capabilities to their products.
The HDC1000 humidity sensor provides high accuracy and low power in a small, dust-resistant package. It consumes only 1.2 uA of average current when measuring relative humidity and temperature at 11-bit resolution, once per second. This low current can extend battery life in remote applications. The sensor’s 2.0-mm by 1.6-mm wafer level chip scale package (WLCSP) simplifies board design and minimizes system size.
The OPT3001 is a precision ambient light sensor with industry-leading spectral response, delivering greater than 99 percent IR rejection, to provide consistent light metering regardless of the light source. At 2.0 mm by 2.0 mm by 0.65 mm and supports down to 1.6 V at typical operating current of 2 uA, the ambient light sensor can be used for a variety of battery-powered applications.
The four-channel FDC1004 capacitance-to-digital converter combines unique features and functions with low power and 16-bit noise performance, over a range of +/-15 pF, which makes it easy for designers to use capacitive sensing to increase the intelligence and awareness of their systems.
The device can support an offset capacitance of up to 100 pF, allowing for remote sensing in harsh environments or where electronics cannot be located. It includes a strong shield driver to help minimise interference, to help focus the sensing direction and reducing the impact of temperature variations on system performance.
The FDC1004 can be used in many applications like proximity wake-up sensing, material analysis and liquid level sensing.