New ultra-low current miniature oscillators for medical applications

Euroquartz has released a new series of miniature crystal oscillators from Statek Inc providing ultra-low current and developed for high-reliability applications. Hermetically sealed in a highly reliable ceramic housing, the new CXOU oscillator is offered in frequencies from 32.768kHz to 100,000kHz. The device provides ultra-low current consumption from 1.75µA to 3.9µA depending on frequency output with start-up voltages from 0.9V to 5V. Standard calibration tolerances are ±20, ±50 and ±100ppm with tighter bands offered to special order. Typical start-up time is 200ms with rise/fall times of 30ns while ageing is ±2ppm for the first year. Standard CMOS output load is 10pF with other loads available to special order. The new crystal oscillators are also able to withstand peak shock up to 5,000g (0.3ms ½ sine). Housed in a non-magnetic, helium-impermeable ceramic package and lid measuring just 1.2mm x 2mm x 0.76mm, this range of oscillators is perfect for use in many medical implantable applications including pacemakers, defibrillators and neuro devices as well as external medical products. With full defence testing per MIL-PRF-55310 available to order, the oscillators are also ideal for many defence and aerospace applications.