Design of FM radio receiver based on LM386 audio power amplifier circuit

Why can ordinary audio power amplifier directly listen to the sound of FM radio station in some cases? How does it amplify and detect the high-frequency electromagnetic wave propagating in space and restore the sound? To understand this, you need a little more than the operational amplifier introduced in the university textbook   The characteristics […]

Read More

Characteristics and application range of high precision operational amplifiers opa211 and opa82

Ti announced the launch of two new high-precision operational amplifiers for the high-voltage industrial market – opa211 and opa82. Both amplifiers realize the perfect combination of ultra-low noise, low power consumption, small package size and high bandwidth, providing breakthrough high performance for testing and measurement, instrumentation, imaging, medical, audio and process control applications. Opa211 and […]

Read More

Design of wireless electronic stethoscope based on ZigBee

Heart sound auscultation is an important means of disease diagnosis. In this paper, we discuss an electronic stethoscope designed by using wireless transmission technology. The electronic stethoscope is based on embedded processor. The data can be transmitted through ZigBee wireless transmission module, and the microphone is used to receive the sound of heartbeat. We can […]

Read More

Performance and application range of ncs25xx series of high-speed operational amplifier products

ONSEMI has expanded its existing high-speed and Low-Power Operational Amplifier product series and launched seven new devices designed specifically for the fast-growing high-definition video application market. These operational amplifiers adopt new technology to achieve the ultra-low distortion performance level required by professional video applications. Ansenmey semiconductor’s ncs25xx high-speed operational amplifier series enables designers to achieve […]

Read More

Performance characteristics and application range of low power and low voltage precision operational amplifier ad8500

The low-power low-voltage Precision Operational Amplifier (OPAMP) ad8500 launched by Adi company is most suitable to meet the requirements of power, voltage, precision and price in portable battery powered applications. Compared with similar solutions operating at 1.8V, the power consumption of ad8500 is 30% lower without affecting the precision performance. This combination of low power […]

Read More