STMicroelectronics’ TDA7901 automotive amplifier integrates a buck controller for class-G power switching and supports high-definition audio — a market-unique combination for ideal listening and high efficiency. In class-G operation, the TDA7901 buck controller automatically optimizes the voltage supplied to the bridge-tied load (BTL) power-stage, depending on the audio-signal level. The resulting smooth, analog sound comes with…
TI releases 24-bit wideband analog-to-digital converter
Texas Instruments (TI) has introduced the smallest 24-bit wideband analog-to-digital converter (ADC), which delivers signal-measurement precision at wider bandwidths than competing ADCs. The ADS127L11, the newest product in TI’s portfolio of precision wideband ADCs, achieves ultra-precise data acquisition in a 50-percent smaller package — significantly optimizing power consumption, resolution, and measurement bandwidth for a range…
Inverting amplifier with signal feedback using NPN transistor
In this project about inverting amplifier, output voltage is fed back to input so as to cancel the effect of variation of temperature on voltage gain and improve [[wysiwyg_imageupload::]]stability of circuit with respect to temperature variations.Inverting inputs are more preferred than the non-inverting ones due to the main benefit of stability. Inverting amplifiers, hence, even though provide less gain, are used for more applications. From various electronic circuits such as integrator or differentiator, inverting amplifiers are used in designing filters for communication circuits.Without much change in the circuitry, inverting amplifiers can be made to work from AC to DC mode or vice versa. Hence, it becomes an easy task to design the circuits without giving much attention to the obvious power concerns. Let’s find out how to make an inverting circuit by using a transistor, a DC battery source and a few passive electronic components.