tda8768b NXP Semiconductors, tda8768b Datasheet - Page 20

• Manufacturer Part Number: tda8768b
• Description: Tda8768b 12-bit, 80 Msps Analog-to-digital Converter Adc
• Manufacturer: NXP Semiconductors

Philips Semiconductors
12. Support information
9397 750 12338
Product data
12.1.1 Non-linearities
12.1.2 Dynamic parameters (single tone)
12.1 Definitions
Integral Non-Linearity (INL):
from a best fit straight line (linear regression computation). The INL of the code i is
obtained from the equation:
where
S = slope of the ideal straight line = code width; i = code value.
Differential Non-Linearity (DNL):
1 LSB.
where
Figure 20
conforming to coherent sampling (f
is number of samples, M and N being relatively prime), and digitized by the ADC
under test.
INL i
i
DNL i
i
=
=
0
0
=
2
2
=
n
n
shows the spectrum of a full-scale input sine wave with frequency f
V
-----------------------------------------------
–
–
V
-------------------------------------------- - 1
in
1
2
in
i
i
and
–
+
Rev. 02 — 20 January 2004
V
1
S
S
in
–
ideal
V
in
i
–
It is defined as the deviation of the transfer function
12-bit, 80 Msps Analog-to-Digital Converter (ADC)
t/
It is the deviation in code width from the value of
f
s
= M/N, where M is the number of cycles and N
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
TDA8768B
t
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