LTC2249 Linear Technology, LTC2249 Datasheet - Page 6

• Manufacturer Part Number: LTC2249
• Description: 80Msps Low Power 3V ADC
• Manufacturer: Linear Technology

DataSheet4U.com
www.DataSheet4U.com
LTC2249
TYPICAL PERFOR A CE CHARACTERISTICS
6
–100
–110
–100
–110
–120
–120
100
–10
–20
–30
–40
–50
–80
–90
–10
–20
–30
–40
–50
–80
–90
–60
–70
–60
–70
95
85
75
70
65
90
80
0
0
0
0
0
8192 Point FFT, f
–1dB, 2V Range
8192 Point 2-Tone FFT,
f
–1dB, 2V Range
SFDR vs Input Frequency,
–1dB, 2V Range
IN
= 28.2MHz and 26.8MHz,
5
5
50
10
10
INPUT FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
15
15
100
20
20
IN
= 30MHz,
25
25
150
30
30
W
35
35
2249 G10
2249 G04
2249 G07
U
200
40
40
50000
45000
40000
35000
30000
25000
20000
15000
10000
5000
–100
–110
–120
100
–10
–20
–30
–40
–50
–60
–70
–80
–90
90
70
60
50
80
0
0
0
0
8201
Grounded Input Histogram
8192 Point FFT, f
–1dB, 2V Range
SNR and SFDR vs Sample Rate,
2V Range, f
26
10 20 30 40 50 60 70
552
5
DataSheet4U.com
5194
8203
10
12558
SAMPLE RATE (Msps)
FREQUENCY (MHz)
IN
15
35969
8205
= 5MHz, –1dB
CODE
20
43161
SFDR
SNR
IN
= 70MHz,
25
8207
25292
80
6150
30
90 100 110
8209
1987
35
2249 G08
2249 G05
2249 G11
178
40
–100
–110
–120
–10
–20
–30
–40
–50
–80
–90
–60
–70
75
74
73
72
71
70
69
68
67
65
70
66
95
90
80
75
85
0
30
0
0
SNR vs Input Frequency,
–1dB, 2V Range
SNR and SFDR
vs Clock Duty Cycle
8192 Point FFT, f
–1dB, 2V Range
SFDR: DCS ON
35
SNR: DCS OFF
5
SNR: DCS ON
INPUT FREQUENCY (MHz)
40
10
50
CLOCK DUTY CYCLE (%)
SFDR: DCS OFF
FREQUENCY (MHz)
45
15
100
50
20
IN
= 140MHz,
55
25
150
60
30
35
65
2249 G09
2249 G12
2249 G06
2249f
200
70
40