Phoenix, Arizona–ON Semiconductor, a provider of power management and broadband integrated circuits that enable mobile communication and power the Internet, has announced the availability of ultra-low voltage operational amplifiers (op amps) that can be powered from a single NiCd, NiMH, or alkaline battery cell.
The MC33501 and MC33503, two one-volt SMARTMOS single rail-to-rail operational amplifiers, offer designers a cost-effective way to improve performance and increase the operational life of battery powered handheld systems, such as cellular phones, personal digital assistants and mini disc players, according to the company.
“The MC33501 and MC33503 are currently the only op amps in the industry that operate at a supply voltage as low as 0.9V and are guaranteed and specified at 1V,” said Kent Yancik, analog marketing engineer at ON Semiconductor. “The cores for microprocessors and DSPs are down to 0.9V and these op amps, which are the building blocks of analog circuitry, support the trend towards these lower operating voltage levels. The introduction of these op amps reinforces ON Semiconductor’s commitment to delivering key value added analog ICs that enable mobile electronics.”
The MC33501 and MC33503 provide good bandwidth versus quiescent current trade-off, reports ON Semiconductor, and are fully operational at 0.9V–which enables the devices to function at higher frequencies for a given current level. The op amps are available in a TSOP-5 package and are each configured with one pin-out. Pricing for the MC33501SNT1 and the MC33503SNT1 is suggested at $0.43 per 12K units.