Power_electronics Features

Proving the Ruggedness of GaN technology in Automotive and Demanding Application - issue 4/2020
To achieve the most efficient power conversion circuit requires the best semiconductor switch as the fundamental building block. Many people now consider gallium nitride to be a better switch than...
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Linear voltage regulators operate at automotive temperatures
Designed for high reliability, high temperature applications, the CMT-Antares is Cissoid's latest regulator.
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Power Electronics Europe News
Instrumentation amplifier is rad-tolerant

 It has an integrated differential ADC driver and is claimed to provide the highest sensor signal processing performance for communication satellite applications. The differential input, rail-to-rail output in-amp can be used for low-level sensor telemetry data critical to communication satellites. It also claims that integration reduces system size, weight and power (SWAP) costs, and accelerates time-to-market.

It enables higher common-mode rejection ratio (CMRR) and power supply rejection ratio (PSRR) than alternatives available, at all gain settings, says the company. Designers can program the in-amp’s gain from 0.1 to 10,000 using two external resistors. The device is wafer-by-wafer guaranteed to 75krad (Si) with a low dose rate exposure of 10mrad/sec, which closely resembles the space environment than the high dose rate testing used with competitive devices. The proprietary silicon on insulator (SoI) process provides single event latch-up (SEL) and single event burn-out (SEB) robustness of 60MeV in heavy ion environments. Single event transient (SET) performance of less than 10µsec eliminates the need for extra filtering.

The amplifier has a low input offset of 30µV, and low input bias current of 0.2nA. Operating range is from ±4.0 to ±18V to cover the majority of analogue supply rails. Extended operating temperature range is -55 to 125°C.

The amplifier is available now in a 24-lead ceramic flatpack packages. Evaluation boards are also available.


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