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Temperature sensors flaunt industry's widest Vcc range

24 Nov 2014

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Atmel Corp. has introduced what it touts as the industry's first line-up of high-precision digital temperature sensors offering 1.7-5.5V Vcc range. The devices claim to provide higher temperature accuracy and faster I2C bus communication speeds, and are offered with integrated non-volatile registers and serial EEPROM targeting consumer, industrial, computer and medical applications, stated the company.

Boasting the widest Vcc range in the industry, the temperature sensor family allows customers to purchase one device to cover all their Vcc requirements in a variety of applications, Atmel stated. The digital temperature sensors allow customers to select just one device to cover all Vcc requirements in various applications, reducing their overall BOM. The family also delivers a higher accuracy rate at ±0.5°C accuracy (typical) across the 0°C to 85°C temperature range across the entire wide voltage range. The low voltage operation of the devices also reduce the overall power consumption in applications such as portable handheld consumer devices, enabling longer battery life, Atmel added.

The family also delivers a faster I2C bus communication with speeds of up to 1MHz, increasing the data throughput for both temperature sensor operations and for devices with integrated serial EEPROM.

The temperature sensor family includes six high-precision, digital temperature sensors based on the industry-standard LM75 functionality offered by a number of vendors. All the devices accurately measure and monitor temperature to address the thermal monitoring requirements for a variety of applications and are highly configurable.

The portfolio includes devices that include serial EEPROM memory from 2K-, 4K- or 8K-bits to store system parameters and user preference data. The base part numbers include AT30TSE752A, AT30TSE754A or AT30TSE758A. The user can also access the EEPROM, which is fully functional and drop-in compatible with industry-standard I2C serial EEPROMs. This integration reduces overall system cost by replacing the stand-alone serial EEPROM, saving the EEPROM cost and other associated costs of the circuit board components. Additionally, the inclusion of non-volatile registers to permanently store device configuration settings offers system designers superior flexibility, Atmel stated. The integrated non-volatile register feature allows user-configured settings to be retained across power cycles to simplify the system design, reduce processor start-up code, improve reliability and ensure proper operation.

Atmel's digital temperature sensor family is available. Pricing starts at $0.32 for the AT30TS74 in 5,000-piece quantities.

The temperature sensor family includes the AT30TS74, AT30TS75A, AT30TS750A, AT30TSE752A, AT30TSE754A and the AT30TSE758A and replaces the existing AT30TS75, AT30TS750, AT30TSE752, AT30TSE754 and the AT30TSE758 devices.

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