New Industry Products

ON Semiconductor Introduces New MC33501 and MC33503 Amplifiers

December 20, 2000 by Jeff Shepard

ON Semiconductor (Phoenix, AZ) has announced the availability of the MC33501 and MC33503, ultra-low voltage operational amplifiers that can be powered from a single NiCd, NiMH, or alkaline battery cell. These two 1V, SMARTMOS, single rail-to- rail operational amplifiers are designed to improve performance and increase the operational life of battery-powered handheld systems, such as cellular phones, personal digital assistants and mini disc players.

ON Semiconductor claims that the MC33501 and MC33503 provide good bandwidth versus quiescent current trade-off, and that they are fully operational at 0.9V. Their performance is fully specified over a 1V to 7V range, and both devices feature rail-to-rail input and output at 1V. Additionally, both devices operate right up to 0.9V, the discharge state of a single-cell NiCd battery.

These operational amplifiers can be used for multiple functions such as driving capacitive loads, voltage generation, and inverting and non-inverting amplification. They are equipped with an on-demand base current cancellation amplifier that allows the devices to consume less current when the output stage is in quiescent mode.

“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 toward 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 operational amplifiers are available in a TSOP-5 package

and are each configured with one pin-out. Pricing for the MC33501SNT1 and MC33503SNT1 is suggested at $0.43 per 12,000 units.