We will respond to you request for price and delivery in 24 hour or less and have the ability to ship over 90 percent of our orders the SAME day. Located in the USA we sell Obsolete, Discontinued electronic components domestically and abroad.
We are focused on supplying electronic components for repair and maintenance. We are a Independent Distributor of production quantities Hard-to-Find Electronic components. The figure shows that the output of amplifier one serves as the input to amplifier two, which results in both amplifiers producing signals identical in magnitude, but 180° out of phase.USA Company since 2003 connecting the Engineer and the Component Industry. The closed-loop gain of the first amplifier is set by selecting the ratio of Rf to Ri while the second amplifier's gain is fixed by the two internal 40kΩ resistors.
The first amplifier's gain is externally configurable the second amplifier is internally fixed in a unity-gain, inverting configuration. The application circuit from the LM4871 datasheet is given below.Īs shown in the above diagram, the LM4871 has two operational amplifiers internally, allowing for a few different amplifier configurations. The LM4871 only require few external components and operate on low supply voltages from 2.0V to 5.5V. nSo you can use this audio amplifier in portable computers, desktop computers, and low voltage audio systems. LM4871 audio power amplifiers are designed specifically to provide high power, high fidelity audio output. LM4871 does not require output coupling capacitors, bootstrap capacitors, or snubber networks, it is ideally suited for low-power portable systems that require minimum volume and weight. The LM4871 is an Audio Amplifier with Shutdown mode feature. Note: Complete Technical Details can be found at the LM4871 datasheet give at the end of this page.Įquivalent for LM4871: 8002B, 8002A, TDA2050Īlternatives Audio Amplifiers: LM386, TDA2030, LM1875, AD620, IC6283, JRC4558
Available in 8-Pin WSON, VSSOP, SOIC, or PDIP packages.THD at 1kHz at 1W Continuous Average Output Power into 8Ω 0.5% (max).PSRR - Power Supply Rejection Ratio: 60 dB.The Non - Inverting Input Pin of Amplifier Activate Shutdown mode when VDD is applied to this pinīypass Pin for low noise performance and high power supply rejection. Additional LM4871 features include thermal shutdown protection, unity-gain stability, and external gain set. The LM4871 is a mono bridged audio power amplifier capable of delivering 3W of continuous average power into a 3Ω load with less than 10% THD when powered by a 5V power supply.
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