LTC2190 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC2190' PDF : 28 Pages View PDF
TYPICAL PERFORMANCE CHARACTERISTICS
LTC2192
LTC2191/LTC2190
LTC2190: 64k Point, 2-Tone FFT,
fIN = 69MHz, 70MHz, –7dBFS,
25Msps
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0
5
FREQUENCY (MHz)
10
219210 G37
LTC2190: 2nd, 3rd Harmonic vs
Input Frequency, –1dBFS, 25Msps,
2V Range
100
95
90
3RD
85
80
2ND
75
70
65
0 50 100 150 200 250 300
INPUT FREQUENCY (MHz)
219210 G40
LTC2190: IVDD vs Sample Rate,
5MHz, –1dBFS Sine Wave Input on
Each Channel
55
50
LTC2190: Shorted Input Histogram
10000
9000
8000
7000
6000
5000
4000
3000
2000
1000
0
32836
32842 32848 32854
OUTPUT CODE
32860
219210 G38
LTC2190: 2nd, 3rd Harmonic vs
Input Frequency, –1dBFS, 25Msps,
1V Range
100
95
3RD
90
85
2ND
80
75
70
65
0 50 100 150 200 250 300
INPUT FREQUENCY (MHz)
219210 G41
LTC2190: IOVDD vs Sample Rate,
5MHz, –1dBFS Sine Wave on Each
Input
45
4 LANE, 3.5mA
40
45
40
35
0
5
10
15
20
25
SAMPLE RATE (Msps)
219210 G43
35
2 LANE, 3.5mA
4 LANE, 1.75mA
1 LANE, 3.5mA
20
2 LANE, 1.75mA
1 LANE, 1.75mA
15
0
5
10
15
20
25
SAMPLE RATE (Msps)
219210 G44
LTC2190: SNR vs Input Frequency,
–1dBFS, 25Msps, 2V Range
78
77
SINGLE-ENDED
ENCODE
76
75
74
DIFFERENTIAL
ENCODE
73
72
71
70
0 50 100 150 200 250 300
INPUT FREQUENCY (MHz)
219210 G39
LTC2190: SFDR vs Input Level,
fIN = 70MHz, 25Msps, 2V Range
130
120
110
dBFS
100
90
80
70
dBc
60
50
40
30
20
–80 –70 –60 –50 –40 –30 –20 –10 0
INPUT LEVEL (dBFS)
219210 G42
LTC2190: SNR vs SENSE,
fIN = 5MHz, –1dBFS
78
77
76
75
74
73
72
71
70
0.6 0.7
0.8 0.9 1 1.1
SENSE PIN (V)
1.2 1.3
219210 G45
219210p
13
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