LTC2238 Linear, LTC2238 Datasheet - Page 7

• Manufacturer Part Number: LTC2238
• Description: (LTC2236 - LTC2238) LOW POWER 3V ADC
• Manufacturer: Linear

TYPICAL PERFOR A CE CHARACTERISTICS
–0.25
–0.50
–0.75
–1.00
120
110
100
1.00
0.75
0.50
0.25
100
75
70
65
90
80
70
60
50
40
30
20
10
95
90
85
80
0
0
–60
0
LTC2238: SFDR vs Input Frequency,
–1dB, 2V Range, 65Msps
LTC2238: SFDR vs Input Level,
f
0
LTC2237: Typical INL,
2V Range, 40Msps
IN
= 30MHz, 2V Range, 65Msps
–50
50
256
INPUT FREQUENCY (MHz)
INPUT LEVEL (dBFS)
–40
dBc
CODE
100
–30
512
REFERENCE LINE
dBFS
80dBc SFDR
–20
150
768
W
–10
223876 G10
223876 G16
223876 G13
U
1024
200
0
–0.25
–0.50
–0.75
–1.00
1.00
0.75
0.50
0.25
100
60
65
90
80
70
50
80
75
70
60
55
50
0
0
0
0
LTC2238: SNR and SFDR vs
Sample Rate, 2V Range,
f
LTC2238: I
5MHz Sine Wave Input, –1dB
LTC2237: Typical DNL,
2V Range, 40Msps
IN
10 20 30 40 50 60 70
= 5MHz, –1dB
10
256
20
SAMPLE RATE (Msps)
SAMPLE RATE (Msps)
2V RANGE
VDD
30
vs Sample Rate,
SFDR
CODE
SNR
512
1V RANGE
40
LTC2238/LTC2237/LTC2236
50
80
768
60
90 100 110
223876 G17
223876 G11
70
223876 G14
1024
80
–120
–100
–110
–20
–30
–40
–50
–70
–80
–90
–10
–60
40
80
70
60
50
30
20
10
0
6
5
4
3
1
0
2
0
–60
LTC2238: I
5MHz Sine Wave Input, –1dB,
O
0
0
LTC2238: SNR vs Input Level,
f
LTC2237: 8192 Point FFT,
f
40Msps
IN
IN
VDD
= 30MHz, 2V Range, 65Msps
= 5MHz, –1dB, 2V Range,
10
–50
= 1.8V
20
5
SAMPLE RATE (Msps)
INPUT LEVEL (dBFS)
–40
OVDD
FREQUENCY (MHz)
30
dBFS
vs Sample Rate,
–30
40
10
dBc
50
–20
60
15
–10
223876 G18
223876fa
223876 G12
70
223876 G15
7
20
80
0