Frequency of oscillation nonlinearity is foregone and forgotten if R_LIN = T_D/C_T = 212 ns/300 pF = 706 ohms

Authors	Stephen Woodward
Main Document	Article «Improve 555 frequency linearity»
Description	Figure 4
File Format / Size	PDF / 9 Kb
Document Language	English

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Article «Improve 555 frequency linearity»

Figure 1. A super simple, 5-decade LMC555 current-controlled oscillator
Figure 2. Nonlinear red curve versus ideal black shows ~20% error from LMC555 internal delay. The y-axis is the output frequency. The x-axis is the control current
Figure 3. Nonlinearity compensation for 555 internal delays when R_LINC_T = T_D = 212 ns
Figure 4. Frequency of oscillation nonlinearity is foregone and forgotten if R_LIN = T_D/C_T = 212 ns/300 pF = 706 ohms

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Microcontrollers