LTC1748_15 Datasheet, PDF (3/20 Pages) Linear Technology – 14-Bit, 80Msps Low Noise ADC

DY A IC ACCURACY T_A = 25°C, A_IN = –1dBFS (Note 5)
SYMBOL
SNR
SFDR
S/(N + D)
THD
IMD
PARAMETER
Signal-to-Noise Ratio
Spurious Free Dynamic Range
Signal-to-(Noise + Distortion) Ratio
Total Harmonic Distortion
Intermodulation Distortion
Sample-and-Hold Bandwidth
CONDITIONS
5MHz Input Signal (2V Range)
5MHz Input Signal (3.2V Range)
30MHz Input Signal (2V Range)
30MHz Input Signal (3.2V Range)
70MHz Input Signal (2V Range)
70MHz Input Signal (3.2V Range)
140MHz Input Signal (2V Range)
250MHz Input Signal (2V Range)
5MHz Input Signal (2V Range)
5MHz Input Signal (3.2V Range) (2nd and 3rd)
5MHz Input Signal (3.2V Range) (Other)
30MHz Input Signal (2V Range)
30MHz Input Signal (3.2V Range) (2nd and 3rd)
30MHz Input Signal (3.2V Range) (Other)
70MHz Input Signal (2V Range)
70MHz Input Signal (3.2V Range) (2nd and 3rd)
70MHz Input Signal (3.2V Range) (Other)
140MHz Input Signal (2VRange) (2nd and 3rd)
140MHz Input Signal (2V Range) (Other)
250MHz Input Signal (2V Range) (2nd and 3rd)
250MHz Input Signal (2V Range) (Other)
5MHz Input Signal (2V Range)
5MHz Input Signal (3.2V Range)
30MHz Input Signal (2V Range)
30MHz Input Signal (3.2V Range)
70MHz Input Signal (2V Range)
70MHz Input Signal (3.2V Range)
5MHz Input Signal, First 5 Harmonics (2V Range)
5MHz Input Signal, First 5 Harmonics (3.2V Range)
30MHz Input Signal, First 5 Harmonics (2V Range)
30MHz Input Signal, First 5 Harmonics (3.2V Range)
70MHz Input Signal, First 5 Harmonics (2V Range)
70MHz Input Signal, First 5 Harmonics (3.2V Range)
f_IN1 = 2.52MHz, f_IN2 = 5.2MHz (2V Range)
f_IN1 = 2.52MHz, f_IN2 = 5.2MHz (3.2V Range)
R_SOURCE = 50Ω
UU
U
I TER AL REFERE CE CHARACTERISTICS (Note 5)
PARAMETER
V_CM Output Voltage
V_CM Output Tempco
V_CM Line Regulation
V_CM Output Resistance
CONDITIONS
I_OUT = 0
I_OUT = 0
4.75V ≤ V_DD ≤ 5.25V
1mA ≤ I_OUT ≤ 1mA
LTC1748
MIN
TYP
MAX UNITS
72.6
dB
75
76.3
dB
72.5
dB
74
76.1
dB
72.2
dB
75.4
dB
71.4
dB
68.9
dB
90
dB
90
dB
94
dB
90
dB
80
88
dB
85
94
dB
85
dB
76
dB
94
dB
77
dB
93
dB
64
dB
89
dB
72.4
dB
74.5
76.0
dB
72.3
dB
75.6
dB
71
dB
71
dB
– 90
dB
– 90
dB
– 90
dB
– 85
dB
– 78
dB
– 74
dB
97
dBc
93
dBc
240
MHz
MIN
TYP
MAX UNITS
2.30
2.35
2.40
V
± 30
ppm/°C
3
mV/V
4
Ω
1748fa
3