參數(shù)資料
型號(hào)： TDA8768BH/8/C3
廠商： NXP SEMICONDUCTORS
元件分類(lèi)： ADC
英文描述： 1-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP44
封裝： 10 X 10 MM, 1.75 MM HEIGHT, 1.30 MM LEAD LENGTH, PLASTIC, SOT-307-2, QFP-44
文件頁(yè)數(shù)： 13/30頁(yè)
文件大?。?/td> 547K
代理商： TDA8768BH/8/C3
Philips Semiconductors
TDA8768B
12-bit, 80 Msps Analog-to-Digital Converter (ADC)
Product data
Rev. 02 — 20 January 2004
20 of 30
9397 750 12338
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
12. Support information
12.1 Denitions
12.1.1
Non-linearities
Integral Non-Linearity (INL): It is dened as the deviation of the transfer function
from a best t straight line (linear regression computation). The INL of the code i is
obtained from the equation:
where
and
S = slope of the ideal straight line = code width; i = code value.
Differential Non-Linearity (DNL): It is the deviation in code width from the value of
1 LSB.
where
12.1.2
Dynamic parameters (single tone)
Figure 20 shows the spectrum of a full-scale input sine wave with frequency ft,
conforming to coherent sampling (ft/fs = M/N, where M is the number of cycles and N
is number of samples, M and N being relatively prime), and digitized by the ADC
under test.
INL i
()
V
in i
() V
in ideal
()
–
S
-----------------------------------------------
=
i0
2
n
1
–
()
=
DNL i
()
V
in i1
+
() V
in i
()
–
S
---------------------------------------------
1
–
=
i0
2
n
2
–
()
=
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