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參數(shù)資料
| 型號： | LTC1748 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 14-Bit, 80Msps Low Noise ADC |
| 中文描述： | 14位，80Msps的低噪聲ADC |
| 文件頁數(shù)： | 5/20頁 |
| 文件大?。?/td> | 533K |
| 代理商： | LTC1748 |
5
LTC1748
1748fa
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2:
All voltage values are with respect to GND (unless otherwise
noted).
Note 3:
When these pin voltages are taken below GND or above V
DD
, they
will be clamped by internal diodes. This product can handle input currents
of greater than 100mA below GND or above V
DD
without latchup.
Note 4:
When these pin voltages are taken below GND, they will be
clamped by internal diodes. This product can handle input currents of
>100mA below GND without latchup. These pins are not clamped to V
DD
.
Note 5:
V
DD
= 5V, f
SAMPLE
= 80MHz, differential ENC/ENC = 2V
P-P
80MHz
sine wave, input range =
±
1.6V differential, unless otherwise specified.
Note 6:
Integral nonlinearity is defined as the deviation of a code from a
straight line passing through the actual endpoints of the transfer curve.
The deviation is measured from the center of the quantization band.
Note 7:
Bipolar offset is the offset voltage measured from –0.5 LSB
when the output code flickers between 00 0000 0000 0000 and 11
1111 1111 1111.
Note 8:
Guaranteed by design, not subject to test.
Note 9:
Recommended operating conditions.
ELECTRICAL CHARACTERISTICS
TYPICAL PERFOR U
INL, 3.2V Range
DNL, 3.2V Range
8192 Point FFT,
Input Frequency = 15.068MHz,
–1dB, 3.2V Range
FREQUENCY (MHz)
0
A
–60
–70
–80
–90
–30
–40
–50
–20
40
1748 G03
–120
10
20
30
5
15
25
35
–100
–110
0
–10
T
A
= 25
°
C
8192 Point FFT,
Input Frequency = 15.068MHz,
–10dB, 3.2V Range
FREQUENCY (MHz)
0
A
–60
–70
–80
–90
–30
–40
–50
–20
40
1748 G04
–120
10
20
30
5
15
25
35
–100
–110
0
–10
T
A
= 25
°
C
8192 Point FFT,
Input Frequency = 15.068MHz,
–20dB, 3.2V Range
FREQUENCY (MHz)
0
A
–60
–70
–80
–90
–30
–40
–50
–20
40
1748 G05
–120
10
20
30
5
15
25
35
–100
–110
0
–10
T
A
= 25
°
C
8192 Point FFT,
Input Frequency = 30.068MHz,
–1dB, 3.2V Range
FREQUENCY (MHz)
0
A
–60
–70
–80
–90
–30
–40
–50
–20
40
1748 G06
–120
10
20
30
5
15
25
35
–100
–110
0
–10
T
A
= 25
°
C
OUTPUT CODE
0
–2.5
E
–2.0
–1.0
–0.5
0
2.5
T
A
= 25
°
C
1.0
4096
8192
1748 G01
–1.5
1.5
2.0
0.5
12288
16384
OUTPUT CODE
0
–1.0
E
–0.8
–0.4
–0.2
0
1.0
0.4
4096
8192
1748 G02
–0.6
0.6
0.8
0.2
12288
16384
T
A
= 25
°
C
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