LTC2270 データシートの表示（PDF） - Linear Technology
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LTC2270 Datasheet PDF : 36 Pages
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LTC2270
DYNAMIC ACCURACY The l denotes the specifications which apply over the full operating temperature range,
otherwise specifications are at TA = 25°C. AIN = –1dBFS. (Note 5)
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
SNR
Signal-to-Noise Ratio
1.4MHz Input
5MHz Input
30MHz Input
70MHz Input
84.1
dBFS
l 82.3 84.1
dBFS
83.8
dBFS
82.7
dBFS
SFDR Spurious Free Dynamic Range, 2nd Harmonic
1.4MHz Input
5MHz Input
30MHz Input
70MHz Input
99
l 90 98
98
90
dBFS
dBFS
dBFS
dBFS
Spurious Free Dynamic Range, 3rd Harmonic
1.4MHz Input
5MHz Input
30MHz Input
70MHz Input
99
l 92 98
98
96
dBFS
dBFS
dBFS
dBFS
Spurious Free Dynamic Range, 4th Harmonic or Higher
1.4MHz Input
5MHz Input
30MHz Input
70MHz Input
110
dBFS
l 95 110
dBFS
105
dBFS
100
dBFS
S/(N+D) Signal-to-Noise Plus Distortion Ratio
1.4MHz Input
5MHz Input
30MHz Input
70MHz Input
83.9
dBFS
l 81.9 83.9
dBFS
83.7
dBFS
82.0
dBFS
Crosstalk
10MHz Input
–110
dBc
INTERNAL REFERENCE CHARACTERISTICS The l denotes the specifications which apply over the
full operating temperature range, otherwise specifications are at TA = 25°C. (Note 5)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VCM Output Voltage
VCM Output Temperature Drift
VCM Output Resistance
VREF Output Voltage
VREF Output Temperature Drift
VREF Output Resistance
VREF Line Regulation
IOUT = 0
–600μA < IOUT < 1mA
IOUT = 0
–400μA < IOUT < 1mA
1.7V < VDD < 1.9V
l 0.5 • VDD – 25mV
l
1.230
0.5 • VDD
±25
4
1.250
±25
7
0.6
0.5 • VDD + 25mV
1.270
V
ppm/°C
Ω
V
ppm/°C
Ω
mV/V
2270f
5
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