optimal resistor accuracy while building DAC - R2R ladder 
optimal resistor accuracy while building DAC - R2R ladder

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12 bit R2R =

2^12 = 4092

precission of a single resistor

(1/4092)*100 = 0,025

10 bit ladder requires 0.025% precission resistors

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10 bit R2R =

2^10 = 1024

precission of a single resistor

(1/1024)*100 = 0,09765625

10 bit ladder requires 0.1% precission resistors

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9 bit R2R =

2^9 = 512

precission of a single resistor

(1/512)*100 = 0,19%

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8 bit R2R =

2^8 = 256

precission of a single resistor

(1/256)*100 = 0,39%

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7 bit R2R =

2^7 = 128

precission of a single resistor

(1/128)*100 = 0,78125%


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6 bit R2R = 64

2^6 = 64

precission of a single resistor

(1/128)*100 = 1,5625%


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