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TI high-temperature H.E.A.T. evaluation module speeds safe testing of electronics for harsh and hot environments

Texas Instruments has the H.E.A.T. (harsh environment acquisition terminal) evaluation module (EVM), the industry’s first high-temperature data acquisition system, which includes a complete set of TI signal chain components qualified for extreme temperature operation from -55ºC to 210ºC. The H.E.A.T. EVM is test-oven ready and qualified to operate up to 200 hours at oven temperatures of up to 200ºC. It accepts eight channels of analog data and conditions, digitizes and processes these signals for a variety of applications in ruggedized, high-temperature environments including downhole drilling, jet engines and heavy industrial applications.

Analysis

24 June 2011

byNews Desk

The H.E.A.T. EVM eliminates the need for expensive up-screening and qualification testing of industrial-grade components for temperature ranges outside their datasheet specifications. The tool allows manufacturers to develop applications with components qualified for harsh environments quickly and safely and cuts development, testing and qualification time by up to one year.

Complete signal acquisition system qualified for high temperatures up to 200ºC, test oven ready

Key features and benefits of the H.E.A.T. EVM

Six channels optimized for temperature, pressure sensors and accelerometers plus two general-purpose channels (fully differential and single-ended).

Comprehensive set of components qualified for operating temperatures from -55ºC to 210ºC and guaranteed for at least 1,000 hours operating life.

ADS1278-HT – octal simultaneous sampling 24-bit 128-KSPS ADC

SM470R1B1M-HT – ARM7 microcontroller

OPA211-HT – low-noise, precision operational amplifier

OPA2333-HT – low-power, zero-drift series operational amplifier

INA333-HT – zero-drift, low-power, single-supply instrumentation amplifier

THS4521-HT – low-power, fully differential amplifier

REF5025-HT – 2.5-V precision voltage reference

SN65HVD233-HT – CAN transceiver

SN65HVD11-HT – RS-485 transceiver

Made with polyimide material, and incorporating high-temperature rated passive components and high-temperature solder material, the EVM is test oven ready and can withstand temperatures of up to 200°C for 200 operating hours.