LTC2172-12 Linear Technology, LTC2172-12 Datasheet - Page 13

• Manufacturer Part Number: LTC2172-12
• Description: (LTC217x-12) 65Msps/40Msps/ 25Msps Low Power Quad ADCs
• Manufacturer: Linear Technology

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TYPICAL PERFORMANCE CHARACTERISTICS
–100
–110
–120
–100
–110
–120
–50
–60
–70
–80
–90
–10
–20
–30
–40
–10
–20
–30
–40
–50
–60
–70
–80
–90
95
90
85
80
75
70
65
0
0
0
0
0
LTC2171-12: 8k Point 2-Tone FFT,
f
40Msps
LTC2171-12: SFDR vs Input
Frequency, –1dBFS, 2V Range,
40Msps
LTC2171-12: 8k Point FFT, f
–1dBFS, 40Msps
IN
= 68MHz, 69MHz, –1dBFS,
50
INPUT FREQUENCY (MHz)
100
FREQUENCY (MHz)
FREQUENCY (MHz)
150
10
10
200
250
IN
300
= 29MHz
217212 G24a
217212 G27
217212 G24
350
20
20
18000
16000
14000
12000
10000
–100
–110
–120
6000
4000
2000
8000
–50
–60
–70
–80
–90
110
100
–10
–20
–30
–40
90
80
70
60
50
40
30
20
10
0
0
0
2049
–80
LTC2171-12: 8k Point FFT, f
–1dBFS, 40Msps
0
LTC2171-12: Shorted Input
Histogram
LTC2171-12: SFDR vs Input Level,
f
IN
= 70MHz, 2V Range, 40Msps
–70 –60 –50 –40 –30 –20 –10
2050
INPUT LEVEL (dBFS)
FREQUENCY (MHz)
OUTPUT CODE
dBFS
dBc
2051
10
2052
LTC2171-12/LTC2170-12
IN
= 69MHz
217212 G32
217212 G25
217212 G28
2053
20
0
–100
–110
–120
–50
–60
–70
–80
–90
–10
–20
–30
–40
100
72
71
70
69
68
67
66
95
90
85
80
75
70
0
0
0
LTC2171-12: 8k Point FFT, f
–1dBFS, 40Msps
0
LTC2171-12: SNR vs Input
Frequency, –1dBFS, 2V Range,
40Msps
LTC2171-12: I
5MHz Sine Wave Input, –1dBFS
50
LTC2172-12/
INPUT FREQUENCY (MHz)
10
100
SAMPLE RATE (Msps)
FREQUENCY (MHz)
150
VDD
10
20
vs Sample Rate,
200
250
30
IN
300
13
= 139MHz
217212 G29
217212 G26
21721012f
217212 G54
350
20
40