
3
LTC1747
1747fa
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VCM Output Voltage
IOUT = 0
2.30
2.35
2.40
V
VCM Output Tempco
IOUT = 0
±30
ppm/
°C
VCM Line Regulation
4.75V
≤ VDD ≤ 5.25V
3
mV/V
VCM Output Resistance
1mA
≤ IOUT ≤ 1mA
4
(Note 5)
I TER AL REFERE CE CHARACTERISTICS
UU
U
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
SNR
Signal-to-Noise Ratio
5MHz Input Signal (2V Range)
70.5
dB
5MHz Input Signal (3.2V Range)
71
72
dB
30MHz Input Signal (2V Range)
70.5
dB
30MHz Input Signal (3.2V Range)
71
72
dB
70MHz Input Signal (2V Range)
70
dB
70MHz Input Signal (3.2V Range)
71.5
dB
140MHz Input Signal (2V Range)
69.3
dB
250MHz Input Signal (2V Range)
67.5
dB
SFDR
Spurious Free Dynamic Range
5MHz Input Signal (2V Range)
87
dB
5MHz Input Signal (3.2V Range) (2nd and 3rd)
85
dB
5MHz Input Signal (3.2V Range) (Other)
84
92
dB
30MHz Input Signal (2V Range)
87
dB
30MHz Input Signal (3.2V Range) (2nd and 3rd)
77
85
dB
30MHz Input Signal (3.2V Range) (Other)
84
92
dB
70MHz Input Signal (2V Range)
84
dB
70MHz Input Signal (3.2V Range) (2nd and 3rd)
78
dB
70MHz Input Signal (3.2V Range) (Other)
84
90
dB
140MHz Input Signal (2V Range) (2nd and 3rd)
77
dB
140MHz Input Signal (2V Range) (Other)
90
dB
250MHz Input Signal (2V Range) (2nd and 3rd)
63
dB
250MHz Input Signal (2V Range) (Other)
87
dB
S/(N + D)
Signal-to-(Noise + Distortion) Ratio
5MHz Input Signal (2V Range)
70.5
dB
5MHz Input Signal (3.2V Range)
71
72
dB
30MHz Input Signal (2V Range)
70.5
dB
30MHz Input Signal (3.2V Range)
72
dB
70MHz Input Signal (2V Range)
70
dB
70MHz Input Signal (3.2V Range)
71.5
dB
THD
Total Harmonic Distortion
5MHz Input Signal, First 5 Harmonics (2V Range)
–85
dB
5MHz Input Signal, First 5 Harmonics (3.2V Range)
–84
dB
30MHz Input Signal, First 5 Harmonics (2V Range)
–85
dB
30MHz Input Signal, First 5 Harmonics (3.2V Range)
–84
dB
70MHz Input Signal, First 5 Harmonics (2V Range)
–81
dB
70MHz Input Signal, First 5 Harmonics (3.2V Range)
–77
dB
IMD
Intermodulation Distortion
fIN1 = 2.52MHz, fIN2 = 5.2MHz (2V Range)
87
dBc
fIN1 = 2.52MHz, fIN2 = 5.2MHz (3.2V Range)
85
dBc
Sample-and-Hold Bandwidth
RSOURCE = 50
240
MHz
Specifications are at TA = 25°C. AIN = –1dBFS. (Note 5)
DY A IC ACCURACY
U
W