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參數(shù)資料
| 型號： | LTC1411CG#TRPBF |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 11/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC A/D CONV 14BIT 2.5MSPS 36SSOP |
| 標準包裝： | 1,000 |
| 位數(shù)： | 14 |
| 采樣率（每秒）： | 2.5M |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 325mW |
| 電壓電源： | 模擬和數(shù)字 |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 36-SSOP（0.209"，5.30mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 36-SSOP |
| 包裝： | 帶卷 (TR) |
| 輸入數(shù)目和類型： | 2 個單端，雙極；1 個差分，雙極 |
4
LTC1411
1411f
TI I G CHARACTERISTICS
W U
range, otherwise specifications are TA = 25°C. (Notes 5) (See Figures 11a, 11b)
The q denotes specifications which apply over the full operating temperature
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
fSAMPLE(MAX)
Maximum Sampling Frequency
(Note 9)
q
2.5
MHz
tCONV
Conversion Time
q
250
350
ns
tACQ
Acquisition Time
100
ns
t0
SLP
↑ to CONVST↓ Wake-Up Time
10
F Bypass Capacitor at REFCOM2 Pin
210
ms
t1
NAP
↑to CONVST↓Wake-Up Time
250
ns
t2
CONVST Low Time
(Note 10)
q
20
ns
t3
CONVST to BUSY Delay
CL = 25pF
12
ns
t4
Data Ready After BUSY
↑
7ns
t5
CONVST High Time
(Note 10)
q
20
ns
t6
Aperture Delay of Sample-and-Hold
7
ns
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 ground with DGND, OGND,
AVM and AGND wired together unless otherwise noted.
Note 3: When these pin voltages are taken below AGND or above VDD,
they will be clamped by internal diodes. This product can handle input
currents greater than 100mA without latchup.
Note 4: When these pin voltages are taken below AGND, they will be
clamped by internal diodes. This product can handle input currents greater
than 100mA below AGND without latchup. These pins are not clamped to
VDD.
Note 5: VDD = 5V, PGA1 = PGA0 = 5V, fSAMPLE = 2.5MHz at 25°C and
tr = tf = 5ns unless otherwise specified.
Note 6: Linearity, offset and full-scale specifications apply for a single-
ended AIN+ input with AIN– tied to an external 2.5V reference voltage.
Note 7: 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 8: Bipolar offset is the offset voltage measured from – 0.5LSB
when the output code flickers between 0000 0000 0000 00 and
1111 1111 1111 11.
Note 9: Recommended operating conditions.
Note 10: The falling CONVST edge starts a conversion. If CONVST returns
high at a critical point during the conversion it can create small errors. For
best performance ensure that CONVST returns high within 20ns after
conversion start of after BUSY rises.
Note 11: SLP and NAP have an internal pull-down so the pins will draw
approximately 7
A when tied high and less than 1A when tied low.
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Signal-to-Noise Ratio
vs Input Frequency
INPUT FREQUENCY (kHz)
10
38
S/(N
+
D)
(dB)
50
62
100
1000
10000
1411 G01
26
14
86
74
32
44
56
20
80
68
INPUT FREQUENCY (kHz)
10
38
SNR
(dB)
50
62
100
1000
10000
1411 G02
26
14
86
74
32
44
56
20
80
68
INPUT FREQUENCY (kHz)
10
–80
DISTORTION
(dB)
–60
–40
100
1000
10000
1411 G03
–100
–110
0
–20
–90
–70
–50
–10
–30
2ND
3RD
THD
S/(N + D) vs Input Frequency
Distortion vs Input Frequency
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