參數資料
型號: LTC2286
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的模數轉換器
文件頁數: 18/28頁
文件大?。?/td> 886K
代理商: LTC2286
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
相關PDF資料
PDF描述
LTC2286CUP Dual 10-Bit, 65/40/25Msps Low Noise 3V ADCs
LTC2286IUP Dual 10-Bit, 65/40/25Msps Low Noise 3V ADCs
LTC2286UP Dual 10-Bit, 65/40/25Msps Low Noise 3V ADCs
LTC2287 Dual 10-Bit, 65/40/25Msps Low Noise 3V ADCs
LTC2287CUP Dual 10-Bit, 65/40/25Msps Low Noise 3V ADCs
相關代理商/技術參數
參數描述
LTC2286CUP 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual 10-Bit, 65/40/25Msps Low Noise 3V ADCs
LTC2286CUP#PBF 功能描述:IC ADC DUAL 10BIT 25MSPS 64QFN RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:12 采樣率(每秒):300k 數據接口:并聯 轉換器數目: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) 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數目和類型:1 個單端,單極;1 個單端,雙極
LTC2286CUP#TRPBF 功能描述:IC ADC DUAL 10BIT 25MSPS 64QFN RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:16 采樣率(每秒):45k 數據接口:串行 轉換器數目:2 功率耗散(最大):315mW 電壓電源:模擬和數字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC(0.295",7.50mm 寬) 供應商設備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數目和類型:2 個單端,單極
LTC2286IUP 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual 10-Bit, 65/40/25Msps Low Noise 3V ADCs
LTC2286IUP#PBF 功能描述:IC ADC DUAL 10BIT 25MSPS 64QFN RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:16 采樣率(每秒):45k 數據接口:串行 轉換器數目:2 功率耗散(最大):315mW 電壓電源:模擬和數字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC(0.295",7.50mm 寬) 供應商設備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數目和類型:2 個單端,單極