GW7120

GWANAK GW7120

Analog front end IC for ultrasonic sensors

Analog Front End IC with 8bit MCU and LIN2.2 interface

The GW7120 is a device that combines an integrated microcontroller and an analog front end to provide ultrasonic range detection of 20 cm to 7 m using a minimal number of components. Its pulse-width modulation (PWM) output allows for programmable bursts ranging from 30kHz to 80kHz to be sent to a single ultrasonic transducer connected through a center-tapped transformer. With the use of supported transducers, this device enables distance measurement between 20cm and 7m, achieving a resolution of 1mm. Fast Calibration Data and Program Update via LIN interface