LTC2298 Linear Technology, LTC2298 Datasheet - Page 7

• Manufacturer Part Number: LTC2298
• Description: (LTC2296 - LTC2298) Low Power 3V ADCs
• Manufacturer: Linear Technology

TYPICAL PERFOR A CE CHARACTERISTICS
100
95
90
85
80
75
70
75
74
73
72
71
70
30
0
LTC2298: SNR vs Input Frequency,
–1dB, 2V Range, 65Msps
LTC2298: SNR and SFDR vs
Clock Duty Cycle, 65Msps
SFDR: DCS ON
SNR: DCS ON
SNR: DCS OFF
35
SFDR: DCS OFF
40
50
INPUT FREQUENCY (MHz)
CLOCK DUTY CYCLE (%)
155
145
135
125
115
105
45
95
0
LTC2298: I
5MHz Sine Wave Input, –1dB
100
50
2V RANGE
10
55
20
SAMPLE RATE (Msps)
150
60
W
VDD
30
65
vs Sample Rate,
2298 G09
2298 G12
40
U
200
70
50
1V RANGE
60
100
95
90
85
80
75
70
65
70
80
70
60
50
40
30
20
10
0
2298 G15
–60
0
LTC2298: SFDR vs Input Frequency,
–1dB, 2V Range, 65Msps
LTC2298: SNR vs Input Level,
f
IN
80
= 30MHz, 2V Range, 65Msps
–50
50
INPUT FREQUENCY (MHz)
INPUT LEVEL (dBFS)
–40
dBFS
dBc
100
–30
LTC2298/LTC2297/LTC2296
–20
150
12
10
8
6
4
2
0
–10
0
LTC2298: I
5MHz Sine Wave Input, –1dB,
O
2298 G10
VDD
2298 G13
10
200
0
= 1.8V
20
SAMPLE RATE (Msps)
OVDD
30
120
110
100
110
100
90
80
70
60
90
80
70
60
50
40
30
20
–60
40
vs Sample Rate,
0 10 20 30 40
LTC2298: SNR and SFDR vs
Sample Rate, 2V Range,
f
LTC2298: SFDR vs Input Level,
f
IN
IN
= 5MHz, –1dB
= 30MHz, 2V Range, 65Msps
50
–50
dBFS
60
SAMPLE RATE (Msps)
INPUT LEVEL (dBFS)
–40
dBc
70
2298 G16
50
–30
80
60 70 80 90
90dBc SFDR
REFERENCE LINE
–20
–10
100
2298 G11
2298 G14
229876f
7
110
0