LTC2185CUPPBF Просмотр технического описания (PDF) - Linear Technology
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LTC2185CUPPBF Datasheet PDF : 36 Pages
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LTC2185/LTC2184/LTC2183
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)
LTC2185
LTC2184
LTC2183
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
SNR
Signal-to-Noise Ratio
5MHz Input
76.8
76.7
77.1
dBFS
70MHz Input
l 74.8 76.6
74.8 76.5
75.1 76.9
dBFS
140MHz Input
76.1
76
76.4
dBFS
SFDR Spurious Free Dynamic Range 5MHz Input
90
90
90
dBFS
2nd Harmonic
70MHz Input
l 79 89
81 89
81 89
dBFS
140MHz Input
84
84
84
dBFS
Spurious Free Dynamic Range 5MHz Input
90
90
90
dBFS
3rd Harmonic
70MHz Input
l 82 89
81 89
82 89
dBFS
140MHz Input
84
84
84
dBFS
Spurious Free Dynamic Range 5MHz Input
95
95
95
dBFS
4th Harmonic or Higher
70MHz Input
l 89 95
89 95
89 95
dBFS
140MHz Input
95
95
95
dBFS
S/(N+D) Signal-to-Noise Plus
5MHz Input
76.6
76.5
76.9
dBFS
Distortion Ratio
70MHz Input
l 73.3 76.2
73.9 76.1
74.4 76.5
dBFS
140MHz Input
75.1
75
75.3
dBFS
Crosstalk
10MHz Input
–110
–110
–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
IOUT = 0
0.5 • VDD – 25mV
0.5 • VDD
0.5 • VDD + 25mV
V
VCM Output Temperature Drift
±25
ppm/°C
VCM Output Resistance
VREF Output Voltage
VREF Output Temperature Drift
VREF Output Resistance
–600µA < IOUT < 1mA
IOUT = 0
–400µA < IOUT < 1mA
1.225
4
1.250
±25
7
1.275
Ω
V
ppm/°C
Ω
VREF Line Regulation
1.7V < VDD < 1.9V
0.6
mV/V
218543f
5
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