STMicroelectronics has added four amplifiers to its European radiation-hardened aerospace portfolio. All have achieved QML V qualification and are able to survive extreme environment conditions such as those found in space, and to guarantee prolonged device endurance, claims the company. The RHF484 is a quad version of the earlier RHF43B and is an alternative to industry-standard products. It is packaged in a Flat-14W. The RHF310 and RHF330 are very low power, 5V op amps, suitable for signal conditioning. The 120MHz and 1GHz versions are already QML V qualified. Another device, the 550MHz RHF350 is expected to be qualified in Q4 2011. The company is the first supplier to offer RHA (Radiation Hardness Assurance) -qualified products with ELDRS (enhanced low dose rate sensitivity) -free ICs. It has established its standard hardness to ionising radiation at 300krad (Si) TID, including low dose-rate irradiation and also provides the highest hardness to the damage caused by heavy ions, with SEL (single event latch-up) -free and SEFI (single event false interrupt) -free components. The amplifiers also protect against the transient glitches caused by heavy ions, known as SETs (single event transients). eliability and radiation tests, formally defined in the QML V specifications.
