參數(shù)資料
型號: LTC1420
廠商: Linear Technology Corporation
英文描述: 12-Bit, 10Msps, Sampling ADC(12位, 10Msps,采樣模數(shù)轉(zhuǎn)換器)
中文描述: 12位,10Msps的器件,采樣ADC(12位,10Msps的器件,采樣模數(shù)轉(zhuǎn)換器)
文件頁數(shù): 6/20頁
文件大?。?/td> 272K
代理商: LTC1420
6
LTC1420
TYPICAL PERFOR U
I
DD
vs Clock Frequency
CLOCK FREQUENCY (MHz)
0
40
I
D
42
44
46
48
50
52
2
4
6
8
1420 G10
10
V
REF
= 4.096V
V
REF
= 2.048V
CLOCK FREQUENCY (MHz)
0
1.0
1.2
1.4
8
6
1420 G11
0.8
0.6
2
4
10
0.4
0.2
0
I
S
I
SS
vs Clock Frequency
CMRR vs Input Frequency
INPUT FREQUENCY (MHz)
0.01
0
C
10
30
40
50
1
90
1420 G12
20
0.1
10
60
70
80
+A
IN
(Pin 1):
Positive Analog Input.
–A
IN
(Pin 2):
Negative Analog Input.
V
CM
(Pin 3):
2.5V Reference Output.Optional input com-
mon mode for single supply operation. Bypass to GND
with a 1
μ
F to 10
μ
F ceramic.
SENSE (Pin 4):
Reference Programming Pin. Ground
selects V
REF
= 4.096V. Short to V
REF
for 2.048V. Connect
SENSE to V
DD
to drive V
REF
with an external reference.
V
REF
(Pin 5):
DAC Reference. Bypass to GND with a 1
μ
F to
10
μ
F ceramic.
GND (Pin 6):
DAC Reference Ground.
V
DD
(Pin 7):
Analog 5V Supply. Bypass to GND with a 1
μ
F
to 10
μ
F ceramic.
GND (Pin 8):
Analog Power Ground.
D11 to D0 (Pins 9 to 20):
Data Outputs. The output format
is two’s complement.
OGND (Pin 21):
Output Logic Ground. Tie to GND.
OV
DD
(Pin 22):
Positive Supply for the Output Logic.
Connect to Pin 23 for 5V logic. If not shorted to Pin 23,
bypass to GND with a 1
μ
F ceramic.
PI
FU
CTIO
N
S
U
U
LTC1420 Nonaveraged 4096 Point FFT
FREQUENCY (MHz)
0
–120
A
–100
–80
–60
–40
–20
0
1
2
3
4
1420 G13
5
f
SAMPLE
= 10Msps
f
SFDR = 83.2dB
SINAD = 71dB
V
IN
= 4V
±
5V SUPPLIES
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相關代理商/技術參數(shù)
參數(shù)描述
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