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參數(shù)資料
| 型號： | LTC2284UP |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Dual 14-Bit, 105Msps Low Power 3V ADC |
| 中文描述： | 雙14位，105Msps ADC的低功耗3V的 |
| 文件頁數(shù)： | 14/24頁 |
| 文件大?。?/td> | 687K |
| 代理商： | LTC2284UP |
LTC2284
2284fa
14
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
2284 F08
6.8nH
6.8nH
LTC2284
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
2284 F07
LTC2284
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
2284 F06
LTC2284
25
0.1
μ
F
ANALOG
INPUT
V
CM
A
IN+
A
IN–
1k
12pF
2284 F05
2.2
μ
F
1k
25
0.1
μ
F
LTC2284
25
25
12pF
2.2
μ
F
V
CM
2284 F04
–
–
+
+
CM
ANALOG
INPUT
HIGH SPEED
DIFFERENTIAL
AMPLIFIER
A
IN+
A
IN–
LTC2284
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
Figure 5. Single-Ended Drive
Figure 4. Differential Drive with an Amplifier
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.
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相關代理商/技術參數(shù) |
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|---|---|
| LTC2285 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:4GHz to 6GHz High Dynamic Range Downconverting Mixer |
| LTC2285CUP | 制造商:Linear Technology 功能描述:ADC Dual Pipelined 125Msps 14-bit Parallel 64-Pin QFN EP |
| LTC2285CUP#PBF | 功能描述:IC ADC DUAL 14BIT 125MSPS 64QFN RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉換器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:250 系列:- 位數(shù):12 采樣率（每秒）:1.8M 數(shù)據(jù)接口:并聯(lián) 轉換器數(shù)目:1 功率耗散（最大）:1.82W 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-LQFP 供應商設備封裝:48-LQFP（7x7） 包裝:管件 輸入數(shù)目和類型:2 個單端，單極 |
| LTC2285CUP#TRPBF | 功能描述:IC ADC DUAL 14BIT 125MSPS 64QFN RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉換器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:250 系列:- 位數(shù):12 采樣率（每秒）:1.8M 數(shù)據(jù)接口:并聯(lián) 轉換器數(shù)目:1 功率耗散（最大）:1.82W 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-LQFP 供應商設備封裝:48-LQFP（7x7） 包裝:管件 輸入數(shù)目和類型:2 個單端，單極 |
| LTC2285CUP-PBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual 14-Bit, 125Msps Low Power 3V ADC |
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