Acquisition terminal evaluation module qualified for operation from -55 to +210°C

Acquisition terminal evaluation module qualified for operation from -55 to +210°C

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By eeNews Europe

This high-performance platform from Texas Instruments enables signal conditioning and processor evaluation at high temperature levels and consists of a complete signal chain of components that are all qualified and characterized for operation in the -55 to +210°C temperature range with 1,000 hour of operating life. It expedites the development process, so that systems targeted at high-temperature environments can be created quickly without having to screen off-the-shelf devices for temperature ranges outside their datasheet specifications.

Each HEAT EVM has a ADS1278-HT four-channel simultaneous sampling 24-bit 128 kSamples/s analogue-to-digital converter, an SM470R1B1M-HT ARM7-based microcontroller unit, an OPA211-HT low-noise operational amplifier IC, an OPA2333-HT low power zero-drift series operational amplifier IC, an INA333-HT zero drift instrumentation amplifier IC, an THS4521-HT fully differential amplifier IC, an REF5025-HT 2.5 V precision voltage reference, a SN65HVD233-HT CAN transceiver device and a SN65HVD11-HT RS485 transceiver device. These modules use PCBs made of polyimide material as well as high temperature-rated passive components and solder material.

The signal chain presents engineers with up to eight channels of analogue data, six channels dedicated to connection with temperature sensors, pressure sensors and accelerometers and two general purpose channels (one being fully differential and the other single ended). As part of Arrow’s TestDrive programme, it is available for a 28-day, free of charge evaluation.

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