
3
LTC1750
1750f
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VCM Output Voltage
IOUT = 0
1.95
2
2.05
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 (PGA = 0)
75.5
dB
5MHz Input Signal (PGA = 1)
73.0
dB
30MHz Input Signal (PGA = 0)
73
75.3
dB
30MHz Input Signal (PGA = 1)
72.9
dB
70MHz Input Signal (PGA = 0)
74.6
dB
70MHz Input Signal (PGA = 1)
70
72.8
dB
140MHz Input Signal (PGA = 1)
72
dB
250MHz Input Signal (PGA = 1)
70.6
dB
350MHz Input Signal (PGA = 1)
69
dB
SFDR
Spurious Free Dynamic Range
5MHz Input Signal (PGA = 0)
90
dB
5MHz Input Signal (PGA = 1)
90
dB
30MHz Input Signal (PGA = 0) (HD2 and HD3)
80
90
dB
30MHz Input Signal (PGA = 0) Other
85
95
dB
30MHz Input Signal (PGA = 1)
90
dB
70MHz Input Signal (PGA = 0)
85
dB
70MHz Input Signal (PGA = 1) (HD2 and HD3)
80
90
dB
70MHz Input Signal (PGA = 1) Other
83
95
dB
140MHz Input Signal (PGA = 1)
84
dB
250MHz Input Signal (PGA = 1)
82
dB
350MHz Input Signal (PGA = 1)
74
dB
S/(N + D)
Signal-to-(Noise + Distortion) Ratio
5MHz Input Signal (PGA = 0)
75.2
dB
5MHz Input Signal (PGA = 1)
72.8
dB
30MHz Input Signal (PGA = 0)
75.1
dB
30MHz Input Signal (PGA = 1)
72.6
dB
70MHz Input Signal (PGA = 0)
74.3
dB
70MHz Input Signal (PGA = 1)
72.4
dB
250MHz Input Signal (PGA = 1)
70
dB
THD
Total Harmonic Distortion
5MHz Input Signal, First 5 Harmonics (PGA = 0)
–90
dB
5MHz Input Signal, First 5 Harmonics (PGA = 1)
–90
dB
30MHz Input Signal, First 5 Harmonics (PGA = 0)
–90
dB
30MHz Input Signal, First 5 Harmonics (PGA = 1)
–90
dB
70MHz Input Signal, First 5 Harmonics (PGA = 0)
–85
dB
70MHz Input Signal, First 5 Harmonics (PGA = 1)
–90
dB
250MHz Input Signal (PGA = 1)
78
dB
IMD
Intermodulation Distortion
fIN1 = 2.52MHz, fIN2 = 5.2MHz (PGA = 0)
– 90
dBc
fIN1 = 2.52MHz, fIN2 = 5.2MHz (PGA = 1)
– 90
dBc
Sample-and-Hold Bandwidth
RSOURCE = 50
500
MHz
TA = 25°C, AIN = –1dBFS (Note 5), VSENSE = VDD
DY A IC ACCURACY
U
W