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LTC6945 Datasheet(PDF) 10 Page - Linear Technology

Part # LTC6945
Description  16-Bit, 20Msps Serial Low Noise Dual ADC
PDF  24 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC6945 Datasheet(HTML) 10 Page - Linear Technology

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LTC2271
10
2271f
TYPICAL PERFORMANCE CHARACTERISTICS
0
20
40
60
80
100
120
140
INPUT FREQUENCY (MHz)
83
82
81
80
79
85
84
2271 G10
SINGLE-ENDED
ENCODE
DIFFERENTIAL
ENCODE
0
20
40
60
80
100
120
140
INPUT FREQUENCY (MHz)
95
90
85
80
75
70
105
100
2271 G11
2ND
3RD
INPUT FREQUENCY (MHz)
0
85
80
75
70
90
95
105
100
20
40
60
80
100
120
140
2271 G12
2ND
3RD
INPUT LEVEL (dBFS)
–80
40
60
50
80
70
130
120
110
100
90
–70
–40
–50
–60
0
–10
–20
–30
2271 G13
dBFS
dBc
SENSE PIN (V)
0.6
77
78
79
80
81
82
85
84
83
0.8
0.7
1
1.2
1.1
0.9
1.3
2271 G16
80
85
90
95
100
2271 G17
INPUT COMMON MODE (V)
0.6
0.8
0.7
0.9
1.1
1
1.2
VDD 1.9V
VDD 1.7V
SAMPLE RATE (Msps)
0
80
90
100
110
10
515
20
2271 G18
SFDR
SNR
SFDR vs Input Level, fIN = 5MHz,
20Msps, 2.1V Range
SNR vs Input Frequency, –1dBFS,
20Msps, 2.1V Range
IVDD vs Sample Rate, 5MHz,
–1dBFS Sine Wave Input on
Each Channel
IOVDD vs Sample Rate, 5MHz,
–1dBFS Sine Wave Input on
Each Channel
SNR, SFDR vs Sample Rate,
fIN = 5MHz, –1dBFS
SFDR vs Analog Input Common
Mode, fIN = 9.7MHz, 20Msps,
2.1V Range
SNR vs SENSE,
fIN = 5MHz, –1dBFS
2nd, 3rd Harmonic vs Input
Frequency, –1dBFS, 20Msps,
2.1V Range
2nd, 3rd Harmonic vs Input
Frequency, –1dBFS, 20Msps,
1.05V Range
SAMPLE RATE (Msps)
0
80
85
90
100
95
5
101520
2271 G14
SAMPLE RATE (Msps)
0
10
5
15
20
45
40
35
30
25
515
20
10
2271 G15
4 LANE, 3.5mA
2 LANE, 3.5mA
4 LANE, 1.75mA
1 LANE, 3.5mA
2 LANE, 1.75mA
1 LANE, 1.75mA



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