Datasheet
LTC2293/LTC2292/LTC2291
7
229321fa
TYPICAL PERFOR A CE CHARACTERISTICS
UW
LTC2293: SNR and SFDR vs
Sample Rate, 2V Range,
f
IN
= 5MHz, –1dB
LTC2293: SNR and SFDR vs
Clock Duty Cycle, 65Msps
LTC2293: SNR vs Input Level,
f
IN
= 30MHz, 2V Range, 65Msps
LTC2293: I
OVDD
vs Sample Rate,
5MHz Sine Wave Input, –1dB,
O
VDD
= 1.8V
LTC2293: I
VDD
vs Sample Rate,
5MHz Sine Wave Input, –1dB
LTC2293: SFDR vs Input Level,
f
IN
= 30MHz, 2V Range, 65Msps
LTC2293: SFDR vs Input Frequency,
–1dB, 2V Range, 65Msps
SAMPLE RATE (Msps)
I
OVDD
(mA)
229321 G17
12
10
8
6
4
2
0
0
20
40
50
10 30
60
70
80
LTC2293: SNR vs Input Frequency,
–1dB, 2V Range, 65Msps
INPUT FREQUENCY (MHz)
0
SNR (dBFS)
70
71
200
229321 G10
69
68
50
100
150
72
SAMPLE RATE (Msps)
I
VDD
(mA)
229321 G16
155
145
135
125
115
105
95
0
20
40
50
10 30
60
70
80
2V RANGE
1V RANGE
INPUT FREQUENCY (MHz)
0
100
95
90
85
80
75
70
65
150
229321 G11
50 100 200
SFDR (dBFS)
SAMPLE RATE (Msps)
0
SNR AND SFDR (dBFS)
110
100
90
80
70
60
80
229321 G12
20
40
60
100
SNR
SFDR
CLOCK DUTY CYCLE (%)
30
SNR AND SFDR (dBFS)
60
229321 G13
40 50 70
100
95
90
85
80
75
70
65
35 45 55 65
SFDR: DCS ON
SFDR: DCS OFF
SNR: DCS ON
SNR: DCS OFF
INPUT LEVEL (dBFS)
–60 –50
SNR (dBc AND dBFS)
– 40 –20–30
–10
0
229321 G14
80
70
60
50
40
30
20
10
0
dBFS
dBc
INPUT LEVEL (dBFS)
–60 –50 – 40 –20–30
–10
0
SFDR (dBc AND dBFS)
229321 G15
120
110
100
90
80
70
60
50
40
30
20
dBFS
dBc
90dBc SFDR
REFERENCE LINE