LTC2247 Linear Technology, LTC2247 Datasheet - Page 8

• Manufacturer Part Number: LTC2247
• Description: (LTC2246 - LTC2248) 65/40/25Msps Low Power 3V ADCs
• Manufacturer: Linear Technology

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LTC2248/LTC2247/LTC2246
TYPICAL PERFOR A CE CHARACTERISTICS
8
–100
–110
–120
–100
–110
–120
–10
–20
–30
–40
–50
–60
–70
–80
–90
–10
–20
–30
–40
–50
–60
–70
–80
–90
100
95
90
85
80
75
70
65
0
0
0
0
0
LTC2247: 8192 Point FFT,
f
40Msps
LTC2247: 8192 Point 2-Tone FFT,
f
–1dB, 2V Range, 40Msps
LTC2247: SFDR vs Input Frequency,
–1dB, 2V Range, 40Msps
IN
IN
= 30MHz, –1dB, 2V Range,
= 21.6MHz and 23.6MHz,
50
INPUT FREQUENCY (MHz)
5
5
FREQUENCY (MHz)
FREQUENCY (MHz)
100
10
10
150
15
15
W
2247 G04
2247 G07
2247 G10
U
200
20
20
30000
25000
20000
15000
10000
–100
–110
–120
5000
–10
–20
–30
–40
–50
–60
–70
–80
–90
110
100
90
80
70
60
0
0
0
8184 8185 8186 818781888189 8190 81918192
0
LTC2247: Grounded Input
Histogram, 40Msps
LTC2247: 8192 Point FFT,
f
40Msps
LTC2247: SNR and SFDR vs
Sample Rate, 2V Range,
f
IN
IN
30
= 70MHz, –1dB, 2V Range,
= 5MHz, –1dB
640
20
4641
5
SAMPLE RATE (Msps)
FREQUENCY (MHz)
14833
SFDR
SNR
24558
CODE
40
10
15714
4520
60
15
546 36
2247 G08
2247 G05
2247 G11
80
20
–100
–110
–120
–10
–20
–30
–40
–50
–60
–70
–80
–90
80
70
60
50
40
30
20
10
75
74
73
72
71
70
0
0
–60
0
0
LTC2247: 8192 Point FFT,
f
40Msps
LTC2247: SNR vs Input Frequency,
–1dB, 2V Range, 40Msps
LTC2247: SNR vs Input Level,
f
IN
IN
= 140MHz, –1dB, 2V Range,
= 5MHz, 2V Range, 40Msps
–50
50
INPUT FREQUENCY (MHz)
5
INPUT LEVEL (dBFS)
FREQUENCY (MHz)
– 40
dBFS
dBc
100
–30
10
–20
150
15
–10
224876fa
2247 G06
2247 G09
2247 G12
200
20
0