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Linear

In common usage, linearity refers to a mathematical relationship or function that can be graphically represented as a straight line, as in two quantities that are directly proportional to each other, such as voltage and current in a simple DC circuit, or the mass and weight of an object. A crude but simple example of this concept can be observed in the volume control of an audio amplifier. While our ears may (roughly) perceive a relatively even gradation of volume as the control goes from 1 to 10, the electrical power consumed in the speaker is rising geometrically with each numerical increment. The "loudness" is proportional to the volume number (a linear relationship), while the wattage is doubling with every unit increase (a non-linear, exponential relationship). In electronics, the linear operating region of a device, for example a transistor, is where a dependent variable (such as the transistor collector current) is directly proportional to an independent variable (such as the base current). This ensures that an analog output is an accurate representation of an input, typically with higher amplitude (amplified). A typical example of linear equipment is a high fidelity audio amplifier, which must amplify a signal without changing its waveform. Others are linear filters, linear regulators, and linear amplifiers in general. In most scientific and technological, as distinct from mathematical, applications, something may be described as linear if the characteristic is approximately but not exactly a straight line; and linearity may be valid only within a certain operating region—for example, a high-fidelity amplifier may distort even a small signal, but sufficiently little to be acceptable (acceptable but imperfect linearity); and may distort very badly if the input exceeds a certain value, taking it away from the approximately linear part of the transfer function.

Linear > Amplifiers and Comparators > SP Amplifier

型号	DS	厂牌	批号	数量	地区	采购
ISO122P		TI	-	5244	中国	要求报价
ISO122P		TI	-	900	香港	要求报价
ISO122P		TI	-	183	香港	要求报价
ISO122P		TI	-	2000	新加坡	要求报价
ISO122P		TI	-	370	中国	要求报价
ISO122P		TI	2021+	625	中国	要求报价
ISO122P		TI	2017+	120	中国	要求报价
ISO122P		TI	2023+	430	中国	要求报价
ISO122P		TI	2023+	7653	中国	要求报价
ISO122P		TI	2021+	10	中国	要求报价
ISO122P		TI	2014+	665	香港	要求报价
ISO122P		TI	2022+	4600	香港	要求报价
ISO122P		TI	2022+	200	中国	要求报价
ISO122P		TI	2010+	587	日本	要求报价
ISO122P		TI	2022+	8640	中国	要求报价
ISO122P		TI	2021+	3500	中国	要求报价
ISO122P		TI	-	3	日本	要求报价
ISO122P		TI	-	3	日本	要求报价
ISO122P		TI	2023+	2000	中国	要求报价
ISO122P		TI	2024+	5356	日本	要求报价
ISO122P		TI	2023+	300	中国	要求报价
ISO122P		TI	-	2986	中国	要求报价
ISO122P		TI	2022+	5280	中国	要求报价
ISO122P		TI	2022+	275	中国	要求报价
ISO122P		TI	-	900	中国	要求报价

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