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AD9481 Datasheet(PDF) 5 Page - Analog Devices

Part No. AD9481
Description  8-Bit, 250 MSPS 3.3 V A/D Converter
Download  28 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD9481 Datasheet(HTML) 5 Page - Analog Devices

 
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AD9481
Rev. 0 | Page 5 of 28
AC SPECIFICATIONS
AVDD = 3.3 V, DRVDD = 3.3 V; TMIN = −40°C, TMAX = +85°C, AIN = −1 dBFS, full scale = 1.0 V, internal reference, differential analog and
clock inputs, unless otherwise noted.
Table 3.
AD9481-250
Parameter
Temp
Test Level
Min
Typ
Max
Unit
SIGNAL-TO-NOISE RATIO (SNR)
fIN = 19.7 MHz
25°C
V
46
dB
fIN = 70.1 MHz
25°C
I
44.5
45.7
dB
SIGNAL-TO-NOISE AND DISTORTION (SINAD)
fIN = 19.7 MHz
25°C
V
45.9
dB
fIN = 70.1 MHz
25°C
I
44.4
45.7
dB
EFFECTIVE NUMBER OF BITS (ENOB)
fIN = 19.7 MHz
25°C
V
7.5
Bits
fIN = 70.1 MHz
25°C
I
7.2
7.5
Bits
WORST SECOND OR THIRD HARMONIC DISTORTION
fIN = 19.7 MHz
25°C
V
−64.8
dBc
fIN = 70.1 MHz
25°C
I
−64.8
−54
dBc
WORST OTHER
fIN = 19.7 MHz
25°C
V
−68
dBc
fIN = 70.1 MHz
25°C
I
−65.8
−56
dBc
SPURIOUS-FREE DYNAMIC RANGE (SFDR)1
fIN = 19.7 MHz
25°C
V
−64.8
dBc
fIN = 70.1 MHz
25°C
I
−64.8
−54
dBc
TWO-TONE INTERMODULATION DISTORTION (IMD)
fIN1 = 69.3 MHz, fIN2 = 70.3 MHz
25°C
V
−64.9
dBc
1 DC and Nyquist bin energy ignored.


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