Multi-Channel Temperature Sensors Measure Lower Temperatures With Greater Precision

CHANDLER, AZ -- Microchip Technology Inc. announces the MCP990X family of System Management Bus (SMBus) temp sensor ICs for monitoring of up to four channels in cold, outdoor and industrial low-temperature applications ranging from freezers and refrigerators to base stations and remote radio units. With ±1°C maximum accuracy for both external and internal diode temperatures from -40°C to +65°C, these ICs provide a low-cost, highly flexible solution where precision is needed at lower temperatures.

Advanced features of the MCP990X family include remote diode temperature measurement with resistance error correction that compensates for voltage drops from connectors and long board traces, enabling accurate readings of up to 20 inches away from the IC. Injected system noise from components such as DC-DC converters and backlight inverters is also minimized with a sample-frequency hopping filter, allowing for easier placement and routing. The combination of these features with options for dual, triple and quad temperature monitoring provides for a wider range of measurement opportunities for an entire system with a single IC.

Compact package options that take up less silicon space on the PCB and allow for smaller system solutions and better product design for temperature critical applications include a 2x2 footprint for the MCP9902 dual channel temperature sensor. The IC is the smallest temperature sensor in Microchip's portfolio and 33 percent smaller than the company's previous generation dual temperature sensor. Additionally, a 3x3 footprint package is available for the MCP9903 triple and MCP9904 quad temp sensors.

Development Support

Microchip also introduced the MCP9902 Evaluation Board (part # ADM00615) today, to enable development with the MCP9902 low temp sensor. This board is available now for $35.00.

Pricing and Availability

All three members of the MCP990X are available today for sampling and volume production, starting at $0.46 each in 5,000-unit quantities. The MCP9902 is offered in an 8-pin, 2x2 WDFN package. The MCP9903 and MCP9904 are available in a 10-pin, 3x3 DFN package.

For additional information, visit http://www.microchip.com/MCP990x
 

Suggested Articles

A humidity sensor is an electronic device that measures the humidity in its environment.

MachineMetrics cloud-based platform allows sharing of IP with machine customers

Analog Devices' Ron Kapusta discusses the company's involvement in LiDAR with FierceElectronics.