ltc2182 Linear Technology Corporation, ltc2182 Datasheet - Page 15

• Manufacturer Part Number: ltc2182
• Description: 16-bit, 65msps/ 40msps/25msps Low Power Dual Adcs
• Manufacturer: Linear Technology Corporation

TYPICAL PERFORMANCE CHARACTERISTICS
–100
–110
–120
100
–10
–20
–30
–40
–50
–60
–70
–80
–90
95
90
85
80
75
70
65
50
45
40
35
30
0
0
0
LTC2180: 2nd, 3rd Harmonic vs
Input Frequency, –1dBFS, 25Msps,
2V Range
0
LTC2180: 64k Point 2-Tone FFT,
f
25Msps
LTC2180: I
5MHz, –1dBFS, Sine Wave Input
on Each Channel
IN
= 69MHz, 70MHz, –7dBFS,
50
3.5mA LVDS OUTPUTS
5
INPUT FREQUENCY (MHz)
SAMPLE RATE (Msps)
100
FREQUENCY (MHz)
VDD
10
5
vs Sample Rate,
150
CMOS OUTPUTS
2ND
15
200
3RD
20
10
250
218210 G40
218210 G37
218210 G43
300
25
10000
9000
8000
7000
6000
5000
4000
3000
2000
1000
100
95
90
85
80
75
70
65
80
70
60
50
40
30
20
10
0
0
32836
0
LTC2180: Shorted Input
Histogram
LTC2180: 2nd, 3rd Harmonic vs
Input Frequency, –1dBFS, 25Msps,
1V Range
LTC2180: I
5MHz, –1dBFS, Sine Wave Input
on Each Channel
0
50
32842
5
INPUT FREQUENCY (MHz)
SAMPLE RATE (Msps)
100
OVDD
OUTPUT CODE
10
32848
3.5mA LVDS
150
vs Sample Rate,
1.75mA LVDS
1.8V CMOS
2ND
LTC2182/LTC2181/LTC2180
15
32854
200
3RD
20
250
32860
218210 G41
218210 G44
218210 G38
300
25
130
120
110
100
90
80
70
60
50
40
30
20
78
77
76
75
74
73
72
71
70
78
77
76
75
74
73
72
71
70
–80
0.6
LTC2180: SNR vs Input Frequency,
–1dBFS, 25Msps, 2V Range
0
LTC2180: SNR vs SENSE,
f
LTC2180: SFDR vs Input Level,
f
IN
IN
–70 –60 –50 –40 –30 –20 –10
= 5MHz, –1dBFS
= 70MHz, 25Msps, 2V Range
0.7
50
INPUT FREQUENCY (MHz)
0.8
INPUT LEVEL (dBFS)
100
SENSE PIN (V)
0.9
DIFFERENTIAL
150
ENCODE
dBFS
1
dBc
SINGLE-ENDED
200
1.1
ENCODE
250
1.2
15
218210 G42
218210 G45
218210 G39
218210f
1.3
300
0