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LTC2273/LTC2272
4
22732fa
The
l denotes the specications which apply over the full operating temperature range,
otherwise specications are at TA = 25°C. AIN = –1dBFS unless otherwise noted. (Note 4)
DYNAMIC ACCURACY
SYMBOL PARAMETER
CONDITIONS
LTC2273
LTC2272
UNITS
MIN
TYP
MAX
MIN
TYP
MAX
SFDR
Spurious Free Dynamic
Range 4th Harmonic or
Higher
5MHz Input (2.25V Range, PGA = 0)
5MHz Input (1.5V Range, PGA = 1)
100
dBc
15MHz Input (2.25V Range, PGA = 0)
15MHz Input (1.5V Range, PGA = 1)
l
90
100
90
100
dBc
70MHz Input (2.25V Range, PGA = 0)
70MHz Input (1.5V Range, PGA = 1)
l
90
100
90
100
dBc
140MHz Input (2.25V Range, PGA = 0)
140MHz Input (1.5V Range, PGA = 1)
95
100
95
100
dBc
170MHz Input (2.25V Range, PGA = 0)
170MHz Input (1.5V Range, PGA = 1)
90
95
90
95
dBc
S/(N+D) Signal-to-Noise
Plus Distortion Ratio
5MHz Input (2.25V Range, PGA = 0)
5MHz Input (1.5V Range, PGA = 1)
77.5
75.3
77.5
75.3
dBFS
15MHz Input (2.25V Range, PGA = 0), TA = 25°C
15MHz Input (2.25V Range, PGA = 0
15MHz Input (1.5V Range, PGA = 1)
l
76.3
75.9
77.4
77
75.2
76.3
75.9
77.4
77
75.2
dBFS
70MHz Input (2.25V Range, PGA = 0)
70MHz Input (1.5V Range, PGA = 1), TA = 25°C
70MHz Input (1.5V Range, PGA = 1)
l
74.4
74.1
76.7
75
74.7
74.4
74.1
76.7
75
74.7
dBFS
140MHz Input (2.25V Range, PGA = 0)
140MHz Input (1.5V Range, PGA = 1)
75.3
74.3
75.3
74.3
dBFS
170MHz Input (2.25V Range, PGA = 0)
170MHz Input (1.5V Range, PGA = 1)
73.4
dBFS
SFDR
Spurious Free Dynamic
Range at –25dBFS Dither
“OFF”
5MHz Input (2.25V Range, PGA = 0)
5MHz Input (1.5V Range, PGA = 1)
105
dBFS
15MHz Input (2.25V Range, PGA = 0)
15MHz Input (1.5V Range, PGA = 1)
105
dBFS
70MHz Input (2.25V Range, PGA = 0)
70MHz Input (1.5V Range, PGA = 1)
105
dBFS
140MHz Input (2.25V Range, PGA = 0)
140MHz Input (1.5V Range, PGA = 1)
100
dBFS
170MHz Input (2.25V Range, PGA = 0)
170MHz Input (1.5V Range, PGA = 1)
100
dBFS
SFDR
Spurious Free Dynamic
Range at –25dBFS Dither
“ON”
5MHz Input (2.25V Range, PGA = 0)
5MHz Input (1.5V Range, PGA = 1)
115
dBFS
15MHz Input (2.25V Range, PGA = 0)
15MHz Input (1.5V Range, PGA = 1)
l
97
115
97
115
dBFS
70MHz Input (2.25V Range, PGA = 0)
70MHz Input (1.5V Range, PGA = 1)
115
dBFS
140MHz Input (2.25V Range, PGA = 0)
140MHz Input (1.5V Range, PGA = 1)
110
dBFS
170MHz Input (2.25V Range, PGA = 0)
170MHz Input (1.5V Range, PGA = 1)
105
dBFS