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

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

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LTC2172-12/
LTC2171-12/LTC2170-12
TYPICAL PERFORMANCE CHARACTERISTICS
12
–0.2
–0.4
–0.6
–0.8
–1.0
160
155
150
145
140
135
130
125
120
115
110
95
90
85
80
75
70
65
1.0
0.8
0.6
0.4
0.2
0
0
0
LTC2172-12: SFDR vs Input
Frequency, –1dBFS, 2V Range,
65Msps
LTC2172-12: I
5MHz Sine Wave Input, –1dBFS
0
LTC2171-12: Integral Nonlinearity
(INL)
50
10
1024
INPUT FREQUENCY (MHz)
100
SAMPLE RATE (Msps)
20
OUTPUT CODE
150
VDD
30
2048
vs Sample Rate,
200
40
250
3072
50
300
217212 G10
217212 G53
217212 G21
60
350
4096
–0.2
–0.4
–0.6
–0.8
–1.0
110
100
1.0
0.8
0.6
0.4
0.2
50
40
30
20
10
80
70
60
50
40
30
20
10
90
0
0
0
–80
0
LTC2172-12: SFDR vs Input Level,
f
I
Wave Input, –1dBFS
LTC2171-12: Differential
Nonlinearity (DNL)
0
IN
OVDD
= 70MHz, 2V Range, 65Msps
–70 –60 –50 –40 –30 –20 –10
10
vs Sample Rate, 5MHz Sine
1024
SAMPLE RATE (Msps)
20
INPUT LEVEL (dBFS)
OUTPUT CODE
1-LANE, 1.75mA
2-LANE, 3.5mA
30
dBFS
2048
1-LANE, 3.5mA
2-LANE, 1.75mA
dBc
40
3072
50
217212 G51
217212 G12
217212 G22
60
4096
0
–100
–110
–120
–50
–60
–70
–80
–90
–10
–20
–30
–40
80
70
60
50
40
30
20
10
72
71
70
69
68
67
66
0
–60
0
0.6
LTC2172-12: SNR vs SENSE,
f
LTC2171-12: 8k Point FFT, f
–1dBFS, 40Msps
LTC2172-12: SNR vs Input Level,
f
0
IN
IN
= 5MHz, –1dBFS
= 70MHz, 2V Range, 65Msps
0.7
–50
0.8
–40
INPUT LEVEL(dBFS)
FREQUENCY (MHz)
SENSE PIN (V)
0.9
–30
10
1
dBFS
–20
dBc
1.1
IN
–10
1.2
= 5MHz
21721012f
217212 G50
217212 G15
217212 G23
1.3
0
20