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ADC3421 Datasheet(PDF) 8 Page - Texas Instruments

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No. de pieza ADC3421
Descripción Electrónicos  Quad-Channel, 12-Bit, 25-MSPS to 125-MSPS, Analog-to-Digital Converter
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Fabricante Electrónico  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
Logo TI1 - Texas Instruments

ADC3421 Datasheet(HTML) 8 Page - Texas Instruments

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ADC3421, ADC3422, ADC3423, ADC3424
SBAS673A – JULY 2014 – REVISED OCTOBER 2015
www.ti.com
7.8 AC Performance: ADC3421
Typical values are over the operating free-air temperature range, at TA = 25°C, full temperature range is TMIN = –40°C to TMAX
= 85°C, ADC sampling rate = 25 MSPS, 50% clock duty cycle, AVDD = DVDD = 1.8 V, and –1-dBFS differential input, unless
otherwise noted.
ADC3421 (fS = 25 MSPS)
DITHER ON
DITHER OFF
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
fIN = 10 MHz
70.9
71.1
fIN = 20 MHz
68.9
70.7
70.9
fIN = 70 MHz
70.4
70.6
Signal-to-noise ratio
dBFS
(from 1-MHz offset)
fIN = 100 MHz
70.3
70.5
fIN = 170 MHz
69.7
69.9
fIN = 230 MHz
68.9
69.1
SNR
fIN = 10 MHz
70.2
70.5
fIN = 20 MHz
70.1
70.3
fIN = 70 MHz
69.8
70.0
Signal-to-noise ratio
dBFS
(full Nyquist band)
fIN = 100 MHz
69.6
69.8
fIN = 170 MHz
69.2
69.3
fIN = 230 MHz
68.3
68.5
fIN = 10 MHz
–141.5
–141.7
fIN = 20 MHz
–141.3 –139.5
–141.5
fIN = 70 MHz
–141.0
–141.2
Noise spectral density
NSD(1)
dBFS/Hz
(averaged across Nyquist zone)
fIN = 100 MHz
–140.9
–141.1
fIN = 170 MHz
–140.3
–140.5
fIN = 230 MHz
–139.5
–139.7
fIN = 10 MHz
71
71.1
fIN = 20 MHz
67.9
70.8
70.9
fIN = 70 MHz
69.5
70
Signal-to-noise and distortion
SINAD(1)
dBFS
ratio
fIN = 100 MHz
70.5
70.7
fIN = 170 MHz
69.6
69.8
fIN = 230 MHz
68.7
68.7
fIN = 10 MHz
11.5
11.5
fIN = 20 MHz
11
11.4
11.4
fIN = 70 MHz
11.4
11.4
ENOB(1)
Effective number of bits
Bits
fIN = 100 MHz
11.4
11.4
fIN = 170 MHz
11.3
11.3
fIN = 230 MHz
11.1
11.1
fIN = 10 MHz
93
90
fIN = 20 MHz
84
91
85
fIN = 70 MHz
93
88
SFDR
Spurious-free dynamic range
dBc
fIN = 100 MHz
85
82
fIN = 170 MHz
86
85
fIN = 230 MHz
82
82
(1)
Reported from a 1-MHz offset.
8
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Product Folder Links: ADC3421 ADC3422 ADC3423 ADC3424


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