Cirrus Logic has announced the release of four new audio converters for its Pro Audio product family: two analog-to-digital converters (ADCs) and two digital-to-analog converters (DACs). The components are designed for HiFi playback systems, installed audio infrastructure, professional audio equipment, musical instruments, and USB audio interfaces. The devices expand the company’s existing converter portfolio to […]
Amplifiers
Class-D amplifiers operate at 2MHz switching frequency to reduce PCB space
STMicroelectronics has revealed new class-D automotive audio amplifiers for smart-cockpit applications, engineered for tiny overall dimensions and with a digital input that simplifies circuit design. The new HFDA80D and HFDA90D extend ST’s family of high-frequency automotive amplifiers, complementing the HFA80A analog-input IC. All the devices operate at a switching frequency of 2MHz to save PCB […]
Best practices guide to speaker mounting
The way a speaker is mounted can make or break its acoustic performance. Whether you’re working with miniature transducers in compact devices or full-sized drivers in specialized enclosures, proper speaker mounting is essential for ensuring optimal sound quality, minimizing distortion, and extending component lifespan. From mechanical isolation to enclosure sealing, even small mounting details can […]
Fourth-generation sensor amplifier meets EN12453, EN12978, UL325 and UL508 standards compliance
Carlo Gavazzi Automation has released the PAM03 Series Photoelectric Amplifier, the fourth generation of the company’s photoelectric sensor amplifier product line. The device addresses sensing requirements in environments with dust, dirt, vapor, and visibility obstructions across applications including automatic industrial doors, stone crushing conveyors, and carwash systems. The PAM03 amplifier operates as a standalone unit […]
How op amps work and why you should use them: part 1
Operational amplifiers (op amps) may initially look intimidating, but with a bit of study, they can be easily understood and used in a variety of applications. Op amps can be thought of as a perfect amplifier in a black box. When we create a design using an op amp, we initially presume that the device […]
Design a circuit for ultra-low power sensor applications
Sensors monitoring mechanical and biological systems must often scavenge power from the thing being sensed. The oscillator circuits shown here let you operate those sensors. Sensor circuits that connect to thermocouples, electromagnetic mechanical-to-electrical transducers, and piezoelectric mechanical-to-electrical transducers often use oscillators powered through energy harvesting from solar cells and other sources. These power sources can […]
Amplifier delivers 0.15% gain accuracy with 2.1 MHz bandwidth
STMicroelectronics’ TSC1801 low-side current-measurement amplifier integrates matched resistors to set the gain, which simplifies the circuit design, saves bill-of-materials costs, and ensures gain accuracy within 0.15% over the entire temperature range. The fixed gain also eliminates production trimming of external resistors. Combining very high accuracy and wide bandwidth, the TSC1801 is used for motor control, […]
Infrared preamps improve sensitivity and better reject interference
Vishay Intertechnology, Inc. announced that it has upgraded its VSOP383xx series of preamplifier circuits for infrared (IR) remote control applications in consumer products with the new Cyllene 2 IC. Offered in the 2 mm by 2 mm by 0.76 mm QFN package, the enhanced solutions provide drop-in, plug-and-play replacements for existing devices in the series […]
What are the advantages of a three op-amp instrumentation amplifier?
An instrumentation amplifier (INA) built using three operational amplifiers (op amps) can provide performance advantages in terms of high input impedance, low output impedance, easily adjustable gain, excellent common-mode rejection ratio (CMRR), high accuracy, and high open-loop gain. This article examines the basic design of INAs and their performance benefits, then discusses some application considerations, […]
Buzzers cut through background noise up to 100 dB
Raltron announces the release of the RBE Series of electromagnetic buzzers. Designed for applications requiring high Sound Pressure Level (SPL) buzzers and alarms, the RBE Series offers some of the loudest devices in the industry, making them ideal for smoke detectors and fire alarm systems, industrial control panels and equipment, medical devices and healthcare systems, security […]