First temperature sensors with 1.8V SMBus and I2C

Accomplished without an external voltage level shifter, this integrated low-voltage I/O support reduces cost and board space. Enabling accurate readings using temperature-monitoring traces of up to 8 inches in noisy environments, the EMC118X family are also the first temperature sensors utilising an advanced sample-frequency-hopping filter. Ideal for a wide range of applications in the mobile, commercial and embedded computing markets, the new temperature sensors feature options for dual, triple and quad temperature monitoring, in addition to hardwired system-shutdown settings that cannot be overridden by software.

Featuring a 1.8V upper voltage limit for I/O signals, the latest generation of smartphone, tablet and PC chipsets utilise advanced process geometries. The EMC118X is the first family to provide this 1.8V I2C/SMBus interface capability, in addition to a flexible set of integrated feature options. It is also difficult to extend analogue traces near noisy components, such as DC-DC converters and backlight inverters. Employing frequency-hopping on the sampling frequency, the EMC118X family avoids the injection of coherent noise and enables traces of up to 8 inches while maintaining accurate temperature readings.

Microchip has also introduced the EMC1182 Evaluation Board (ADM00516) to enable development with these new temperature sensors. This board is available now, priced at $29.99 each.

All six members of the EMC118X temp sensor family are available today for sampling and volume production. The EMC1182 is offered in 8-pin DFN and TDFN packages; the EMC1183, EMC1184, EMC1187 and EMC1188 are all available in a 10-pin DFN package; whilst the EMC1186 is offered in an 8-pin TDFN package.