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參數(shù)資料
| 型號： | LTC2288UP |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Dual 10-Bit, 65/40/25Msps Low Noise 3V ADCs |
| 中文描述： | 雙10位，65/40/25Msps低噪聲3V的模數(shù)轉(zhuǎn)換器 |
| 文件頁數(shù)： | 18/28頁 |
| 文件大?。?/td> | 886K |
| 代理商： | LTC2288UP |
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LTC2288/LTC2287/LTC2286
18
228876f
Figure 5 shows a single-ended input circuit. The imped-
ance seen by the analog inputs should be matched. This
circuit is not recommended if low distortion is required.
APPLICATIOU
W
U
U
Figure 6. Recommended Front End Circuit for
Input Frequencies Between 70MHz and 170MHz
Figure 8. Recommended Front End Circuit for
Input Frequencies Above 300MHz
Figure 7. Recommended Front End Circuit for
Input Frequencies Between 170MHz and 300MHz
25
25
12
12
0.1
μ
F
A
IN+
A
IN–
8pF
2.2
μ
F
V
CM
ANALOG
INPUT
0.1
μ
F
0.1
μ
F
T1
T1 = MA/COM, ETC 1-1-13
RESISTORS, CAPACITORS
ARE 0402 PACKAGE SIZE
228876 F06
LTC2288
LTC2287
LTC2286
Figure 5. Single-Ended Drive
Figure 4. Differential Drive with an Amplifier
25
25
12pF
2.2
μ
F
V
CM
228876 F04
–
–
+
+
CM
ANALOG
INPUT
HIGH SPEED
DIFFERENTIAL
AMPLIFIER
A
IN+
A
IN–
LTC2288
LTC2287
LTC2286
25
0.1
μ
F
ANALOG
INPUT
V
CM
A
IN+
A
IN–
1k
12pF
228876 F05
2.2
μ
F
1k
25
0.1
μ
F
LTC2288
LTC2287
LTC2286
The 25
resistors and 12pF capacitor on the analog inputs
serve two purposes: isolating the drive circuitry from the
sample-and-hold charging glitches and limiting the
wideband noise at the converter input.
For input frequencies above 70MHz, the input circuits of
Figure 6, 7 and 8 are recommended. The balun trans-
former gives better high frequency response than a flux
coupled center tapped transformer. The coupling capaci-
tors allow the analog inputs to be DC biased at 1.5V. In
Figure 8, the series inductors are impedance matching
elements that maximize the ADC bandwidth.
25
25
0.1
μ
F
A
IN+
A
IN–
2.2
μ
F
V
CM
ANALOG
INPUT
0.1
μ
F
0.1
μ
F
T1
T1 = MA/COM, ETC 1-1-13
RESISTORS, CAPACITORS
ARE 0402 PACKAGE SIZE
228876 F07
LTC2288
LTC2287
LTC2286
25
25
0.1
μ
F
A
IN+
A
IN–
2.2
μ
F
V
CM
ANALOG
INPUT
0.1
μ
F
0.1
μ
F
T1
T1 = MA/COM, ETC 1-1-13
RESISTORS, CAPACITORS, INDUCTORS
ARE 0402 PACKAGE SIZE
228876 F08
6.8nH
6.8nH
LTC2288
LTC2287
LTC2286
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC2289 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual 10-Bit, 80Msps Low Noise 3V ADC |
| LTC2289CUP | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual 10-Bit, 80Msps Low Noise 3V ADC |
| LTC2289CUP#PBF | 功能描述:IC ADC DUAL 10BIT 80MSPS 64QFN RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標準包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個單端，單極；1 個單端，雙極 |
| LTC2289CUP#TRPBF | 功能描述:IC ADC DUAL 10BIT 80MSPS 64QFN RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標準包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個單端，單極；1 個單端，雙極 |
| LTC2289IUP | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual 10-Bit, 80Msps Low Noise 3V ADC |
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