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Voltage comparator delivers fast response time, low current consumption

06 Dec 2011

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STMicroelectronics has released a high-speed voltage comparator with the best ratio of current consumption to response time. The high-speed voltage comparator addresses applications where fast response time is critical, such as in data communications equipment. When a noise occurs in the signal, for example, minimized delay helps ensure instant data recovery and thus maintain failure-free communication traffic flow. Fast-response comparators can also find use in pulse-width modulation for audio amplifiers or as output buffers in oscilloscopes and analog-to-digital converters.

ST's TS3011 single comparator achieves a propagation delay of 8ns while consuming only 470µA of supply current at 5V, which is 50 percent lower than other solutions. This energy efficiency allows the design of products with less power, thus having less impact on the environment.

The TS3011 integrates push-pull outputs, removing the need for a pull-up resistor, and rail-to-rail inputs with operating voltage range from 2.2V to 5V. The device delivers a stable response time over a wide temperature range of -40°C to 125°C. It is a robust solution with superior ESD (Electrostatic Discharge Protection) capabilities and latch-up immunity of 200mA.

Available in space-saving SMD packages, the device is currently in volume production with units priced at $1.05 in quantities of 1,000 pieces. Further pricing options are available for larger quantities.




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