Datasheet

LTC2298/LTC2297/LTC2296
9
229876fa
LTC2297: I
OVDD
vs Sample Rate,
5MHz Sine Wave Input, –1dB,
O
VDD
= 1.8V
LTC2297: I
VDD
vs Sample Rate,
5MHz Sine Wave Input, –1dB
TYPICAL PERFOR A CE CHARACTERISTICS
UW
LTC2297: SFDR vs Input Level,
f
IN
= 5MHz, 2V Range, 40Msps
LTC2296: Typical INL,
2V Range, 25Msps
LTC2296: Typical DNL,
2V Range, 25Msps
LTC2296: 8192 Point FFT,
f
IN
= 5MHz, –1dB, 2V Range,
25Msps
LTC2297: SFDR vs Input Frequency,
–1dB, 2V Range, 40Msps
LTC2297: SNR and SFDR vs
Sample Rate, 2V Range,
f
IN
= 5MHz, –1dB
LTC2297: SNR vs Input Level,
f
IN
= 5MHz, 2V Range, 40Msps
INPUT FREQUENCY (MHz)
0
100
95
90
85
80
75
70
65
150
2297 G10
50 100 200
SFDR (dBFS)
SAMPLE RATE (Msps)
0
SNR AND SFDR (dBFS)
110
100
90
80
70
60
80
2297 G11
40
20 60
SNR
SFDR
INPUT LEVEL (dBFS)
–60 –50
SNR (dBc AND dBFS)
–40 –20–30
–10
0
2297 G12
80
70
60
50
40
30
20
10
0
dBFS
dBc
INPUT LEVEL (dBFS)
–60 –50 – 40 –20–30
–10
0
2297 G13
SNR (dBc AND dBFS)
120
110
100
90
80
70
60
50
40
30
20
dBFS
dBc
90dBc SFDR
REFERENCE LINE
SAMPLE RATE (Msps)
0
I
VDD
(mA)
40
2297 G14
10
20
30
50
100
90
80
70
60
2V RANGE
1V RANGE
SAMPLE RATE (Msps)
0
I
OVDD
(mA)
4
6
40
2297 G15
2
0
10
20
30
50
8
CODE
0
INL ERROR (LSB)
12288
2296 G01
4096 8192 16384
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
CODE
0
DNL ERROR (LSB)
12288
2296 G02
4096 8192 16384
1.00
0.75
0.50
0.25
0
–0.25
–0.50
–0.75
–1.00
FREQUENCY (MHz)
0
AMPLITUDE (dB)
2296 G03
246810
12
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120