LTC1412 Просмотр технического описания (PDF) - Linear Technology
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LTC1412 Datasheet PDF : 16 Pages
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TYPICAL PERFOR A CE CHARACTERISTICS
LTC1412
S/(N + D) and Effective Number of
Bits vs Input Frequency
12
74
68
10
62
56
8
6
4
2
0
1k
10k
100k
1M
10M
INPUT FREQUENCY (Hz)
1412 G01
Spurious-Free Dynamic Range
vs Input Frequency
0
– 10
– 20
– 30
– 40
– 50
– 60
– 70
– 80
– 90
–100
10K
100K
1M
FREQUENCY (Hz)
10M
1412 G04
Intermodulation Distortion Plot
0
–10
fSMPL = 3MHz
fIN1 = 85.693359kHz
– 20
fIN2 = 114.990234kHz
– 30
– 40
– 50
– 60
– 70
– 80
– 90
– 100
– 110
0
200 400 600 800 1000 1200 1400
FREQUENCY (kHz)
1412 G05
Signal-to-Noise Ratio
vs Input Frequency
80
Distortion vs Input Frequency
0
70
– 20
60
– 40
50
40
30
20
10
0
10k
– 60
– 80
– 100
100k
1M
INPUT FREQUENCY (Hz)
– 120
10M
10
1412 G02
THD
3RD
2ND
100
1k
INPUT FREQUENCY (Hz)
10k
1412 G03
Nonaveraged, 4096 Point FFT,
Input Frequency = 100kHz
0
fSMPL = 3Msps
fIN = 97.412kHz
– 20
SFDR = 93.3dB
SINAD = 73dB
– 40
Nonaveraged, 4096 Point FFT,
Input Frequency = 1.45kHz
0
fSMPL = 3Msps
fIN = 1.419kHz
–20 SFDR = 83dB
SINAD = 72.5dB
SNR = 73db
– 40
– 60
– 60
– 80
– 80
– 100
– 100
– 120
0
200 400 600 800 1000 1200 1400
FREQUENCY (kHz)
1412 F02a
Differential Nonlinearity
vs Output Code
1.0
– 120
0
200 400 600 800 1000 1200 1400
FREQUENCY (kHz)
1412 F02B
Integral Nonlinearity
vs Output Code
1.0
0.5
0.5
0
0
– 0.5
– 0.5
– 1.0
0 512 1024 1536 2048 2560 3072 3584 4096
OUTPUT CODE
1412 G06
– 1.0
0 512 1024 1536 2048 2560 3072 3584 4096
OUTPUT CODE
1412 G07
5
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