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ADC121C021 Datasheet(PDF) 11 Page - Texas Instruments |
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ADC121C021 Datasheet(HTML) 11 Page - Texas Instruments |
11 / 44 page 2 f1 2 Fn 2 f2 10 x A A + + A log THD = 20 / ADC121C021, ADC121C021Q, ADC121C027 www.ti.com SNAS415F – JANUARY 2008 – REVISED MARCH 2013 TOTAL HARMONIC DISTORTION (THD) is the ratio, expressed in dBc, of the rms total of the first n harmonic components at the output to the rms level of the input signal frequency as seen at the output. THD is calculated as (1) where Af1 is the RMS power of the input frequency at the output and Af2 through Afn are the RMS power in the first n harmonic frequencies. THROUGHPUT TIME is the minimum time required between the start of two successive conversions. It is the acquisition time plus the conversion time. LEAST SIGNIFICANT BIT (LSB) is the bit that has the smallest value or weight of all bits in a word. This value is LSB = VA / 2 n (2) where VA is the supply voltage for this product, and "n" is the resolution in bits, which is 12 for the ADC121C021. MOST SIGNIFICANT BIT (MSB) is the bit that has the largest value or weight of all bits in a word. Its value is 1/2 of VA. Copyright © 2008–2013, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Links: ADC121C021 ADC121C021Q ADC121C027 |
Similar Part No. - ADC121C021_15 |
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Similar Description - ADC121C021_15 |
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