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| ADC14DS080_0712 Datasheet, PDF (8/28 Pages) National Semiconductor (TI) – Dual 14-Bit, 80 MSPS A/D Converter with Serial LVDS Outputs | |||
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Symbol
Parameter
EXT
VREF
Internal Reference Accuracy
External Reference Voltage
Conditions
(VRP-VRN)
(Note 12)
Typical
(Note 10)
Limits
1.0
0.89
1.06
1.20
1.176
1.224
Units
(Limits)
V (min)
V (max)
V (min)
V (max)
Dynamic Converter Electrical Characteristics
Unless otherwise specified, the following specifications apply: AGND = DRGND = 0V, VA = VDR = +3.0V, Internal VREF = +1.2V,
fCLK = 80 MHz, VCM = VCMO, CL = 5 pF/pin, . Typical values are for TA = 25°C. Boldface limits apply for TMIN ⤠TA ⤠TMAX. All
other limits apply for TA = 25°C (Notes 8, 9)
Symbol
Parameter
Conditions
Typical
(Note 10)
Limits
Units
(Limits)
(Note 2)
DYNAMIC CONVERTER CHARACTERISTICS, AIN = -1dBFS
FPBW Full Power Bandwidth
-1 dBFS Input, â3 dB Corner
1.0
GHz
SNR Signal-to-Noise Ratio
SFDR Spurious Free Dynamic Range
ENOB Effective Number of Bits
THD Total Harmonic Disortion
H2
Second Harmonic Distortion
H3
Third Harmonic Distortion
SINAD Signal-to-Noise and Distortion Ratio
IMD
Intermodulation Distortion
fIN = 10 MHz
fIN = 70 MHz
fIN = 170 MHz
fIN = 10 MHz
fIN = 70 MHz
fIN = 170 MHz
fIN = 10 MHz
fIN = 70 MHz
fIN = 170 MHz
fIN = 10 MHz
fIN = 70 MHz
fIN = 170 MHz
fIN = 10 MHz
fIN = 70 MHz
fIN = 170 MHz
fIN = 10 MHz
fIN = 70 MHz
fIN = 170 MHz
fIN = 10 MHz
fIN = 70 MHz
fIN = 170 MHz
fIN = 20 MHz and 21 MHz, each -7 dBFS
74.2
72
71.8
90
88
82
12
11.8
11.6
â88
â85
â81
â100
â95
â83
â90
â88
â84.5
74
72.7
71.3
-84
70
78
11.2
-77
-78
-78
69.2
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
Bits
Bits
Bits
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
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