Datasheet

LTC2248/LTC2247/LTC2246
9
224876fa
CODE
0
INL ERROR (LSB)
12288
2246 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
2246 G02
4096 8192 16384
FREQUENCY (MHz)
0
AMPLITUDE (dB)
2246 G03
246810
12
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
FREQUENCY (MHz)
0
AMPLITUDE (dB)
2246 G04
246810
12
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
FREQUENCY (MHz)
0
AMPLITUDE (dB)
2246 G05
246810
12
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
FREQUENCY (MHz)
0
AMPLITUDE (dB)
2246 G06
246810
12
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
1.00
0.75
0.50
0.25
0
–0.25
–0.50
–0.75
–1.00
INPUT LEVEL (dBFS)
–60 – 50 –40 –20–30
–10
0
2247 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
2247 G14
10
20
30
50
50
45
40
35
30
2V RANGE
1V RANGE
SAMPLE RATE (Msps)
0
I
OVDD
(mA)
2
3
40
2247 G15
1
0
10
20
30
50
4
LTC2247: I
OVDD
vs Sample Rate,
5MHz Sine Wave Input, –1dB,
O
VDD
= 1.8V
LTC2247: I
VDD
vs Sample Rate,
5MHz Sine Wave Input, –1dB
TYPICAL PERFOR A CE CHARACTERISTICS
UW
LTC2247: SFDR vs Input Level,
f
IN
= 5MHz, 2V Range, 40Msps
LTC2246: Typical INL,
2V Range, 25Msps
LTC2246: Typical DNL,
2V Range, 25Msps
LTC2246: 8192 Point FFT,
f
IN
= 5MHz, –1dB, 2V Range,
25Msps
LTC2246: 8192 Point FFT,
f
IN
= 30MHz, –1dB, 2V Range,
25Msps
LTC2246: 8192 Point FFT,
f
IN
= 70MHz, –1dB, 2V Range,
25Msps
LTC2246: 8192 Point FFT,
f
IN
= 140MHz, –1dB, 2V Range,
25Msps