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參數(shù)資料
| 型號： | LTC2296UP |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Dual 14-Bit, 65/40/25Msps Low Power 3V ADCs |
| 中文描述： | 雙14位，65/40/25Msps低功耗3V的模數(shù)轉(zhuǎn)換器 |
| 文件頁數(shù)： | 18/28頁 |
| 文件大?。?/td> | 706K |
| 代理商： | LTC2296UP |
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LTC2298/LTC2297/LTC2296
18
229876f
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
229876 F06
LTC2298
LTC2297
LTC2296
Figure 5. Single-Ended Drive
Figure 4. Differential Drive with an Amplifier
25
25
12pF
2.2
μ
F
V
CM
229876 F04
–
–
+
+
CM
ANALOG
INPUT
HIGH SPEED
DIFFERENTIAL
AMPLIFIER
A
IN+
A
IN–
LTC2298
LTC2297
LTC2296
25
0.1
μ
F
ANALOG
INPUT
V
CM
A
IN+
A
IN–
10k
12pF
229876 F05
2.2
μ
F
10k
25
0.1
μ
F
LTC2298
LTC2297
LTC2296
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
229876 F07
LTC2298
LTC2297
LTC2296
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
229876 F08
6.8nH
6.8nH
LTC2298
LTC2297
LTC2296
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC2297CUP | Dual 14-Bit, 65/40/25Msps Low Power 3V ADCs |
| LTC2297IUP | Dual 14-Bit, 65/40/25Msps Low Power 3V ADCs |
| LTC2297UP | Dual 14-Bit, 65/40/25Msps Low Power 3V ADCs |
| LTC2298CUP | Dual 14-Bit, 65/40/25Msps Low Power 3V ADCs |
| LTC2298IUP | Dual 14-Bit, 65/40/25Msps Low Power 3V ADCs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC2297 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:14-Bit, 125/105Msps Low Power 3V ADCs |
| LTC2297CUP | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual 14-Bit, 65/40/25Msps Low Power 3V ADCs |
| LTC2297CUP#PBF | 功能描述:IC ADC DUAL 14BIT 40MSPS 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(biāo)準(zhǔn)包裝:1 系列:microPOWER™ 位數(shù):8 采樣率（每秒）:1M 數(shù)據(jù)接口:串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:- 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-VQFN 裸露焊盤（4x4） 包裝:Digi-Reel® 輸入數(shù)目和類型:8 個單端，單極 產(chǎn)品目錄頁面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6 |
| LTC2297CUP#TRPBF | 功能描述:IC ADC DUAL 14BIT 40MSPS 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(biāo)準(zhǔn)包裝:1 系列:- 位數(shù):14 采樣率（每秒）:83k 數(shù)據(jù)接口:串行，并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:95mW 電壓電源:雙 ± 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:28-DIP（0.600"，15.24mm） 供應(yīng)商設(shè)備封裝:28-PDIP 包裝:管件 輸入數(shù)目和類型:1 個單端，雙極 |
| LTC2297IUP | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual 14-Bit, 65/40/25Msps Low Power 3V ADCs |
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