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RC4580IDG4 Datasheet(PDF) 8 Page - Texas Instruments |
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RC4580IDG4 Datasheet(HTML) 8 Page - Texas Instruments |
8 / 25 page RC4580 SLOS412D – APRIL 2003 – REVISED NOVEMBER 2014 www.ti.com 7 Detailed Description 7.1 Overview The RC4580 device is a dual operational amplifier that has been designed optimally for audio applications, such as improving tone control. It offers low noise, high gain bandwidth, low harmonic distortion, and high output current, all of which make the device ideally suited for audio electronics, such as preamplifiers, active filters, and industrial measurement equipment. When high output current is required, the RC4580 device can be used as a headphone amplifier. Due to its wide operating supply voltage, the RC4580 device can also be used in low- voltage applications. 7.2 Functional Block Diagram 7.3 Feature Description 7.3.1 Unity-Gain Bandwidth The unity-gain bandwidth is the frequency up to which an amplifier with a unity gain may be operated without greatly distorting the signal. The RC4580 device has a 12-MHz unity-gain bandwidth. 7.3.2 Common-Mode Rejection Ratio The common-mode rejection ratio (CMRR) of an amplifier is a measure of how well the device rejects unwanted input signals common to both input leads. It is found by taking the ratio of the change in input offset voltage to the change in the input voltage, then converting to decibels. Ideally the CMRR is infinite, but in practice, amplifiers are designed to have it as high as possible. The CMRR of the RC4580 device is 110 dB. 7.3.3 Slew Rate The slew rate is the rate at which an operational amplifier can change its output when there is a change on the input. The RC4580 device has a 5-V/ms slew rate. 7.4 Device Functional Mode The RC4580 device is powered on when the supply is connected. Each device can be operated as a single- supply operational amplifier or dual-supply amplifier depending on the application. 8 Submit Documentation Feedback Copyright © 2003–2014, Texas Instruments Incorporated Product Folder Links: RC4580 |
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