LTC2298 Datasheet, PDF (9/28 Pages) Linear Technology – Dual 14-Bit, 65/40/25Msps Low Power 3V ADCs

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