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Two pieces of ADC module design were realised and tested first piece denoted as ADC1 has LTC21190
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Two pieces of ADC module design were realised and tested first piece denoted as ADC1 has LTC21190
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ADC chip populated with LT660015 front-end operational apmlifier. This ADC1 module has 1kOhm resistors populated on inputs which gives to module internal attenuation of input signal. Value of this attenuation $A$ is described by formula
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ADC chip populated with LT660015 front-end operational apmlifier. This ADC1 module has 1kOhm resistors populated on inputs which gives to module internal attenuation of input signal. Value of this attenuation $A$ is described by formula
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$$
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$$
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A = {1580 \times R_1} \over {R_1 + R_2}
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A = {1580 \times R_1 \over R_1 + R_2}
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$$
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$$
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\midinsert
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\midinsert
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\picw=15cm \cinspic ./img/screenshots/ADC1_CH2_FFT.png
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\picw=15cm \cinspic ./img/screenshots/ADC1_CH2_FFT.png
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\caption/f Sine signal from ADC1 module with LTC21190 and LT6600-5 devices.
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\caption/f Sine signal from ADC1 module with LTC21190 and LT6600-5 devices.
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