MC144112 Ver la hoja de datos (PDF) - Motorola => Freescale

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MC144112

Quad Six-Bit Digital-to-Analog Converter

Motorola => Freescale 

100

75

Vnonl

50

IDEAL

ACTUAL

25

Voffset

0

0

15

31

47

63

$00

$0F

$1F

$2F

$3F

PROGRAM STEP

LINEARITY ERROR (integral nonlinearity). A measure of how

straight a device’s transfer function is, it indicates the worst–case

deviation of linearity of the actual transfer function from the best–

fit straight line. It is normally specified in parts of an LSB.

Figure 1. D/A Transfer Function

VRn OUT

Vstep

Vstep =

VDD ± 0.75 VDD

64

64

(For any adjacent pair of digital numbers)

DIGITAL NUMBER

Figure 2. Definition of Step Size Variance (Differential Nonlinearity)

MOTOROLA

MC144112

3

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