Datasheet

LTC2172-12/
LTC2171-12/LTC2170-12
13
21721012fb
I
OVDD
vs Sample Rate, 5MHz Sine
Wave Input, –1dBFS
LTC2172-12: SNR vs SENSE,
f
IN
= 5MHz, –1dBFS
LTC2171-12: Integral Nonlinearity
(INL)
LTC2171-12: Differential
Nonlinearity (DNL)
LTC2171-12: 8k Point FFT,
f
IN
= 5MHz, –1dBFS, 40Msps
LTC2172-12: SFDR vs Input Level,
f
IN
= 70MHz, 2V Range, 65Msps
LTC2172-12: IV
DD
vs Sample Rate,
5MHz Sine Wave Input, –1dBFS
LTC2172-12: SFDR vs Input
Frequency, –1dBFS, 2V Range,
65Msps
Typical perForMance characTerisTics
INPUT FREQUENCY (MHz)
0
90
85
80
75
70
65
95
SFDR (dBFS)
50
100 150 200 250 300 350
217212 G10
INPUT LEVEL (dBFS)
–80
60
50
40
30
20
10
0
80
70
SFDR (dBc AND dBFS)
90
100
110
–70
–60 –50 –40 –30 –20 –10 0
217212 G12
dBFS
dBc
SENSE PIN (V)
0.6
71
68
69
70
67
66
72
SNR (dBFS)
0.7 0.8 0.9 1.1 1.2 1.31
217212 G15
OUTPUT CODE
0
–1.0
–0.4
–0.6
–0.8
INL ERROR (LSB)
–0.2
0
0.2
0.4
0.6
0.8
1.0
1024
2048 3072 4096
217212 G21
OUTPUT CODE
0
–1.0
–0.4
–0.2
–0.6
–0.8
DNL ERROR (LSB)
0
0.4
0.2
0.6
0.8
1.0
1024
2048 3072 4096
217212 G22
FREQUENCY (MHz)
0
–100
–110
–120
–70
–60
–80
–90
AMPLITUDE (dBFS)
–50
–30
–40
–20
–10
0
10
20
217212 G23
INPUT LEVEL(dBFS)
–60
50
40
30
20
10
0
80
60
70
SNR (dBc AND dBFS)
–50
–40 –30 –20 –10 0
217212 G50
dBc
dBFS
SAMPLE RATE (Msps)
160
155
150
145
140
135
130
125
120
115
110
I
VDD
(mA)
0 10 20 30 40 50 60
217212 G53
SAMPLE RATE (Msps)
50
40
30
20
10
0
IO
VDD
(mA)
0 10 20 30 40 50 60
217212 G51
1-LANE, 1.75mA
2-LANE, 3.5mA
2-LANE, 1.75mA
1-LANE, 3.5mA
LTC2172-12: SNR vs Input Level,
f
IN
= 70MHz, 2V Range, 65Msps