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Linear Technology has introduced the LTC2645: a quad-channel 12-bit/10-bit/8-bit PWM-to-voltage-output digital-to-analogue converter (DAC) with 10ppm/oC reference. These parts convert PWM input signals to 12-bit accurate, stable, buffered voltage outputs in less than 8µsec, eliminating the ripple and delay typically associated with analogue filters.
Knowles Acoustic has developed a digital microphone that supports ultrasonic bandwidth. It allows microphones to assist smartphones and consumer electronics with touch-less gesture recognition, phone-to-phone data transmission, pen input compatibility for handsets and tablets and 3D positioning input.
Linear Technology has introduced the LT3062: a high-voltage, low-noise, low-dropout-voltage linear regulator. The IC delivers up to 200mA continuous output current with a 300mV dropout voltage at full load.