EFM32-TG822F32-SK Energy Micro, EFM32-TG822F32-SK Datasheet - Page 29

• Manufacturer Part Number: EFM32-TG822F32-SK
• Description: MCU, MPU & DSP Development Tools TG822 Sample Kit
• Manufacturer: Energy Micro

Specifications of EFM32-TG822F32-SK

• Processor To Be Evaluated: EFM32
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2012-02-27 - EFM32TG822FXX - d0052_Rev0.95
3
The integral non-linearity (INL) and differential non-linearity parameters are explained in Figure 3.12 (p.
29) and Figure 3.13 (p. 29) , respectively.
Figure 3.12. Integral Non-Linearity (INL)
Figure 3.13. Differential Non-Linearity (DNL)
Max number given by (abs(Mean) + 3x stddev) / (85 - 25).
Digit al ouput code
4095
4094
4093
4092
3
2
1
0
Digit al
ouput
code
4095
4094
4093
4092
5
4
3
2
1
0
Act ual ADC
t ranfer funct ion
before offset and
gain correct ion
INL= |[ (V
0.5
LSB
Ideal t ransfer
curve
DNL= |[ (V
Exa m p le : Input value
V
digit al out put code D
D
Ideal Code Cent er
corrresponds t o
D
-V
Ideal t ransfer
curve
D+ 1
Full Scale Range
SS
Ideal 50%
Transit ion Point
)/V
- V
...the world's most energy friendly microcontrollers
Exa m p le : Adjacent
input value V
corrresponds t o digit al
out put code D+ 1
V
LSBIDEAL
29
D
OFFSET
)/V
Ideal spacing
bet ween t wo
adjacent codes
V
LSBIDEAL
LSBIDEAL
D+ 1
] - D| where 0 < D < 2
INL Error
(End Point INL)
= 1 LSB
] - 1| where 0 < D < 2
Code widt h = 2 LSB
DNL= 1 LSB
Act ual ADC
t ranfer funct ion
aft er offset and
gain correct ion
Analog Input
Analog Input
Act ual t ransfer
funct ion wit h one
m issing code.
N
N
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