Date: 06/12/2011

Voltage comparators from ST with propagation delay of 8ns and consume 470 micro amps

STMicroelectronics has introduced a high-speed voltage comparator with the market's best ratio of current consumption to response time.

ST 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 says TS3011 single comparator achieves a propagation delay of 8ns while consuming only 470 µA of supply current at 5V, which is 50% lower than other solutions in the market. 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 a latch-up immunity of 200 mA.

Available in space-saving SMD packages, ST's TS3011 high-speed voltage comparator targets signal-conditioning applications in Telecom and Industrial fields. The device is in volume production, with unit pricing $1.05 in quantities of 1,000 pieces.