參數資料
型號: LTC2261IUJ-14#TRPBF
廠商: Linear Technology
文件頁數: 11/34頁
文件大?。?/td> 0K
描述: IC ADC 14BIT 125MSPS 40-QFN
產品培訓模塊: LTC2262 - Ultra Low Power High Speed ADCs
標準包裝: 2,000
位數: 14
采樣率(每秒): 125M
數據接口: 并聯
轉換器數目: 1
功率耗散(最大): 150mW
電壓電源: 單電源
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 40-WFQFN 裸露焊盤
供應商設備封裝: 40-QFN(6x6)
包裝: 帶卷 (TR)
輸入數目和類型: 1 個差分
配用: DC890B-ND - BOARD USB DATA COLLECTION
19
226114fc
LTC2261-14
LTC2260-14/LTC2259-14
For more information www.linear.com/LTC2261-14
applicaTions inForMaTion
Figure 5. Recommended Front-End Circuit for
Input Frequencies from 170MHz to 270MHz
Figure 6. Recommended Front-End Circuit for
Input Frequencies Above 270MHz
DC level. At higher input frequencies a transmission line
balun transformer (Figures 4 to 6) has better balance,
resulting in lower A/D distortion.
Amplifier Circuits
Figure 7 shows the analog input being driven by a high
speed differential amplifier. The output of the amplifier is
AC-coupled to the A/D so the amplifier’s output common
mode voltage can be optimally set to minimize distortion.
Figure 4. Recommended Front-End Circuit for
Input Frequencies from 70MHz to 170MHz
At very high frequencies an RF gain block will often have
lower distortion than a differential amplifier. If the gain
blockissingle-ended,thenatransformercircuit(Figures 4
to 6) should convert the signal to differential before driv-
ing the A/D.
25
50
0.1F
AIN+
AIN–
4.7pF
0.1F
VCM
ANALOG
INPUT
0.1F
T1
T2
T1: MA/COM MABA-007159-000000
T2: MA/COM MABAES0060
RESISTORS, CAPACITORS ARE 0402 PACKAGE SIZE
226114 F04
LTC2261-14
25
50
0.1F
AIN+
AIN–
1.8pF
0.1F
VCM
ANALOG
INPUT
0.1F
T1
T2
T1: MA/COM MABA-007159-000000
T2: COILCRAFT WBC1-1LB
RESISTORS, CAPACITORS ARE 0402 PACKAGE SIZE
226114 F05
LTC2261-14
25
50
0.1F
2.7nH
AIN+
AIN–
0.1F
VCM
ANALOG
INPUT
0.1F
T1
T1: MA/COM ETC1-1-13
RESISTORS, CAPACITORS
ARE 0402 PACKAGE SIZE
226114 F06
LTC2261-14
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LTC2262CUJ-12#PBF 功能描述:IC ADC 12BIT 150MSPS 40-QFN 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 系列:- 位數:14 采樣率(每秒):83k 數據接口:串行,并聯 轉換器數目: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) 供應商設備封裝:28-PDIP 包裝:管件 輸入數目和類型:1 個單端,雙極
LTC2262CUJ-12#TRPBF 功能描述:IC ADC 12BIT 150MSPS 40-QFN 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 系列:- 位數:14 采樣率(每秒):83k 數據接口:串行,并聯 轉換器數目: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) 供應商設備封裝:28-PDIP 包裝:管件 輸入數目和類型:1 個單端,雙極