ltc2258cuj-14 Linear Technology Corporation, ltc2258cuj-14 Datasheet - Page 10

• Manufacturer Part Number: ltc2258cuj-14
• Description: 14-bit, 65/40/25msps Ultralow Power 1.8v Adcs
• Manufacturer: Linear Technology Corporation

LTC2258-14
LTC2257-14/LTC2256-14
TYPICAL PERFORMANCE CHARACTERISTICS
10
–100
–110
–120
–100
–110
–120
–10
–20
–30
–40
–50
–60
–70
–80
–90
–10
–20
–30
–40
–50
–60
–70
–80
–90
95
90
85
80
75
70
65
0
0
0
0
0
LTC2258-14: 8k Point FFT, f
–1dBFS, 65Msps
LTC2258-14: 8k Point 2-Tone FFT,
f
65Msps
LTC2258-14: SFDR vs Input
Frequency, –1dB, 2V Range,
65Msps
IN
= 68MHz, 69MHz, –1dBFS,
50
INPUT FREQUENCY (MHz)
100
10
10
FREQUENCY (MHz)
FREQUENCY (MHz)
150
200
20
20
250
IN
300
= 30MHz
225814 G07
225814 G10
225814 G04
30
30
350
6000
3000
2000
1000
–100
–110
–120
5000
4000
110
100
–10
–20
–30
–40
–50
–60
–70
–80
–90
80
70
60
50
40
30
20
10
90
0
0
0
8197
–80
0
LTC2258-14: 8k Point FFT, f
–1dBFS, 65Msps
LTC2258-14: Shorted Input
Histogram
LTC2258-14: SFDR vs Input Level,
f
IN
= 70MHz, 2V Range, 125Msps
–70 –60 –50 –40 –30 –20 –10
8199
INPUT LEVEL (dBFS)
10
FREQUENCY (MHz)
OUTPUT CODE
8201
dBFS
dBc
20
8203
IN
8205
= 70MHz
225814 G08
225814 G12
225814 G05
30
0
–100
–110
–120
–10
–20
–30
–40
–50
–60
–70
–80
–90
74
73
72
71
70
69
68
67
66
50
45
40
35
30
0
0
0
LTC2258-14: SNR vs Input
Frequency, –1dB, 2V Range,
65Msps
0
LTC2258-14: 8k Point FFT, f
–1dBFS, 65Msps
LTC2258-14: I
5MHz Sine Wave Input, –1dB
50
LVDS OUTPUTS
INPUT FREQUENCY (MHz)
100
CMOS OUTPUTS
SAMPLE RATE (Msps)
20
10
FREQUENCY (MHz)
150
VDD
vs Sample Rate,
200
40
20
250
IN
300
= 140MHz
225814 G05
225814 G09
225814 G13
225814p
60
30
350