LTC2238 Linear, LTC2238 Datasheet - Page 6

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

LTC2238/LTC2237/LTC2236
TYPICAL PERFOR A CE CHARACTERISTICS
6
–0.25
–0.50
–0.75
–1.00
–100
–110
–120
–100
–110
–120
1.00
0.75
0.50
0.25
–60
–70
–10
–20
–30
–40
–50
–60
–70
–80
–90
–10
–20
–30
–40
–50
–80
–90
0
0
0
0
LTC2238: Typical INL,
2V Range, 65Msps
0
0
LTC2238: 8192 Point FFT,
f
65Msps
LTC2238: 8192 Point 2-Tone FFT,
f
–1dB, 2V Range, 65Msps
IN
IN
= 30MHz, –1dB, 2V Range,
= 28.2MHz and 26.8MHz,
5
5
256
10
10
FREQUENCY (MHz)
FREQUENCY (MHz)
15
15
CODE
512
20
20
768
W
25
25
223876 G01
223876 G04
223876 G07
30
30
U
1024
70000
60000
50000
40000
30000
20000
10000
–0.25
–0.50
–0.75
–1.00
–100
–110
–120
1.00
0.75
0.50
0.25
–10
–20
–30
–40
–50
–60
–70
–80
–90
0
0
0
0
0
LTC2238: Typical DNL,
2V Range, 65Msps
LTC2238: 8192 Point FFT,
f
65Msps
LTC2238: Grounded Input
Histogram, 65Msps
IN
= 70MHz, –1dB, 2V Range,
511
0
5
256
10
FREQUENCY (MHz)
65520
15
CODE
CODE
512
512
20
768
25
513
0
223876 G02
223876 G08
223876 G05
30
1024
–100
–110
–120
–100
–110
–120
62.5
61.5
60.5
59.5
58.5
57.5
–60
–70
–10
–20
–30
–40
–50
–60
–70
–80
–90
–10
–20
–30
–40
–50
–80
–90
0
0
0
0
LTC2238: 8192 Point FFT,
f
65Msps
0
LTC2238: 8192 Point FFT,
f
65Msps
LTC2238: SNR vs Input Frequency,
–1dB, 2V Range, 65Msps
IN
IN
= 5MHz, –1dB, 2V Range,
= 140MHz, –1dB, 2V Range,
5
5
50
INPUT FREQUENCY (MHz)
10
10
FREQUENCY (MHz)
FREQUENCY (MHz)
15
15
100
20
20
150
25
25
223876 G09
223876 G06
223876fa
223876 G03
30
30
200