LTC1273(Rev0) Просмотр технического описания (PDF) - Linear Technology
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LTC1273 Datasheet PDF : 24 Pages
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LTC1273
LTC1275/LTC1276
TYPICAL PERFOR A CE CHARACTERISTICS
Integral Nonlinearity
1.0
Differential Nonlinearity
1.0
Supply Current vs Temperature
25
20
0.5
0.5
15
0
0
10
– 0.5
– 0.5
5
– 1.0
0 512 1024 1536 2048 2560 3072 3584 4096
CODE
LTC1273/75/76 • TPC01
ENOBs and S/(N + D)
vs Input Frequency
12
74
11
68
10
62
9
56
8
50
7
6
5
4
3
2
1 fSAMPLE = 300kHz
0
10k
100k
1M 2M
INPUT FREQUENCY (Hz)
LTC1273/75/76 • TPC04
– 1.0
0 512 1024 1536 2048 2560 3072 3584 4096
CODE
LTC1273/75/76 • TPC02
Signal-to-Noise Ratio (Without
Harmonics) vs Input Frequency
80
70
60
50
40
30
20
10
fSAMPLE = 300kHz
0
1k
10k
100k
1M
INPUT FREQUENCY (Hz)
LTC1273/75/76 • TPC05
0
–50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
LTC1273/75/76 • TPC03
Distortion vs Input Frequency
0
fSAMPLE = 300kHz
– 10
– 20
– 30
THD
2nd HARMONIC
3rd HARMONIC
– 40
– 50
– 60
– 70
– 80
– 90
– 100
1k
10k
100k
1M
10M
INPUT FREQUENCY (Hz)
LTC1273/75/76 • TPC06
Power Supply Feedthrough
vs Ripple Frequency (LTC1273)
0
fSAMPLE = 300kHz
– 20
– 40
VDD
– 60
(VRIPPLE = 1mV)
Power Supply Feedthrough
vs Ripple Frequency (LTC1275/76)
0
fSAMPLE = 300kHz
– 20
VDD (VRIPPLE = 1mV)
– 40
DGND (VRIPPLE = 0.1V)
VSS (VRIPPLE = 10mV)
– 60
– 80
– 100
– 120
1k
DGND
(VRIPPLE = 0.1V)
10k
100k
1M
RIPPLE FREQUENCY (Hz)
LTC1273/75/76 • TPC07
– 80
– 100
– 120
1k
10k
100k
1M
RIPPLE FREQUENCY (Hz)
LTC1273/75/76 • TPC08
7
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