LTC2247 Linear Technology, LTC2247 Datasheet - Page 10

• 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
10
–100
–110
–120
–10
–20
–30
–40
–50
–60
–70
–80
–90
120
110
100
100
90
80
70
60
50
40
30
20
95
90
85
80
75
70
65
0
–60
0
0
LTC2246: 8192 Point 2-Tone FFT,
f
–1dB, 2V Range, 25Msps
LTC2246: SFDR vs Input Level,
f
LTC2246: SFDR vs Input
Frequency, –1dB, 2V Range,
25Msps
IN
IN
= 10.9MHz and 13.8MHz,
= 5MHz, 2V Range, 25Msps
–50
2
50
INPUT FREQUENCY (MHz)
INPUT LEVEL (dBFS)
–40
4
FREQUENCY (MHz)
dBFS
dBc
6
–30
100
8
90dBc SFDR
REFERENCE LINE
–20
150
W
10
–10
2246 G07
2246 G10
2246 G13
12
U
200
0
25000
20000
15000
10000
5000
110
100
90
80
70
60
35
30
25
20
15
0
8179 8180 8181 8182 8183 8184 8185 8186
0
0
LTC2246: Grounded Input
Histogram, 25Msps
LTC2246: I
5MHz Sine Wave Input, –1dB
LTC2246: SNR and SFDR vs
Sample Rate, 2V Range,
f
IN
43
= 5MHz, –1dB
5
853
10
6919
10
SAMPLE RATE (Msps)
SAMPLE RATE (Msps)
VDD
2V RANGE
18803
20
15
vs Sample Rate,
CODE
SFDR
1V RANGE
SNR
22016
20
30
13373
25
3227
40
30
2246 G08
2246 G11
2246 G14
278
50
35
80
70
60
50
40
30
20
10
75
74
73
72
71
70
0
3
2
1
0
–60
0
0
LTC2246: SNR vs Input Frequency,
–1dB, 2V Range, 25Msps
LTC2246: SNR vs Input Level,
f
LTC2246: I
5MHz Sine Wave Input, –1dB,
O
IN
VDD
= 5MHz, 2V Range, 25Msps
–50
5
= 1.8V
50
INPUT FREQUENCY (MHz)
10
SAMPLE RATE (Msps)
INPUT LEVEL (dBFS)
–40
OVDD
dBFS
dBc
15
100
–30
vs Sample Rate,
20
–20
25
150
–10
30
224876fa
2246 G09
2246 G12
2246 G15
200
35
0