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LTC1282ACSW Datasheet(PDF) 6 Page - Linear Technology

Part # LTC1282ACSW
Description  3V 140ksps 12-Bit Sampling A/D Converter with Reference
PDF  24 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1282ACSW Datasheet(HTML) 6 Page - Linear Technology

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6
LTC1282
CC
HARA TERISTICS
A
TYPICALPERFOR
CE
Power Supply Feedthrough
vs Ripple Frequency
Distortion vs Input Frequency
(Unipolar)
Integral Nonlinearity
Intermodulation Distortion Plot
Differential Nonlinearity
CODE
0
–1
–0.5
0
0.5
1
512 1024 1536 2048
LTC1282 • TPC02
2560 3072 3584 4096
SUPPLY VOLTAGE (V)
2.5
12
16
20
4.5
LTC1282 • TPC04
8
4
0
3
3.5
4
5
10
14
18
6
2
SINGLE
SUPPLY
DUAL
SUPPLIES
fSAMPLE = 160kHz
TA = 25°C
INPUT FREQUENCY (Hz)
–80
–60
–40
–20
0
1k
100k
1M
10M
LTC1282 • TPC06
–100
10k
–90
–70
–50
–30
–10
fSAMPLE = 160kHz
3V SUPPLY
UNIPOLAR
3rd HARMONIC
THD
2nd HARMONIC
INPUT FREQUENCY (Hz)
2
4
6
8
10
1k
100k
1M
10M
LTC1282 • TPC05
0
10k
12
1
3
5
7
9
11
50
62
74
56
68
fSAMPLE = 160kHz
VS = ±2.7V BIPOLAR
VS = 3V UNIPOLAR
BIPOLAR
(±1.25V
INPUT)
UNIPOLAR
(0V – 2.5V INPUT)
ENOBs and S/(N + D)
vs Input Frequency
Distortion vs Input Frequency
(Bipolar)
INPUT FREQUENCY (Hz)
–80
–60
–40
–20
0
1k
100k
1M
10M
LTC1282 • TPC07
–100
10k
–90
–70
–50
–30
–10
2nd HARMONIC
THD
fSAMPLE = 140kHz
±3V SUPPLIES
BIPOLAR
3rd HARMONIC
RIPPLE FREQUENCY (Hz)
1k
–60
–50
–40
–30
–20
10k
100k
1M
LTC1282 • TPC08
–70
–80
–90
–100
–10
0
fSAMPLE = 140kHz
VDD (VRIPPLE = 2.5mV)
VSS (VRIPPLE = 2.5mV)
DGND (VRIPPLE = 250mV)
CODE
0
–1
–0.5
0
0.5
1
512 1024 1536 2048
LTC1282 • TPC01
2560 3072 3584 4096
Supply Current (IDD)
vs Temperature
TEMPERATURE (°C)
–50
0
1
3
4
5
10
7
0
50
75
LTC1282 • TPC03
2
8
9
6
–25
25
100
125
fSAMPLE = 160kHz
VDD = 3V
Supply Current (IDD)
vs Supply Voltage
FREQUENCY (Hz)
0
–120
–100
–80
–60
–40
20k
40k
60k
80k
LTC1282 • TPC09
–20
0
10k
30k
50k
70k
fSAMPLE = 160kHz
fIN1 = 19.0kHz
fIN2 = 20.6kHz
VDD = 3V
UNIPOLAR



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