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参数资料
| 型号： | LTC2256IUJ-14#PBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | ADC |
| 英文描述： | 1-CH 14-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC40 |
| 封装： | 6 X 6 MM, LEAD FREE, PLASTIC, QFN-40 |
| 文件页数： | 10/32页 |
| 文件大小： | 1546K |
| 代理商： | LTC2256IUJ-14#PBF |
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LTC2258-14
LTC2257-14/LTC2256-14
18
225814fa
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.
Amplier Circuits
Figure 7 shows the analog input being driven by a high
speed differential amplier. The output of the amplier is AC
coupled to the A/D so the amplier’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 amplier. If the gain
block is single-ended, then a transformer circuit (Figures 4
to 6) should convert the signal to differential before driv-
ing the A/D.
25Ω
50Ω
0.1μF
AIN
+
AIN
–
4.7pF
0.1μF
VCM
ANALOG
INPUT
0.1μF
T1
T2
T1: MA/COM MABA-007159-000000
T2: MA/COM MABAES0060
RESISTORS, CAPACITORS ARE 0402 PACKAGE SIZE
225814 F04
LTC2258-14
25Ω
50Ω
0.1μF
AIN
+
AIN
–
1.8pF
0.1μF
VCM
ANALOG
INPUT
0.1μF
T1
T2
T1: MA/COM MABA-007159-000000
T2: COILCRAFT WBC1-1LB
RESISTORS, CAPACITORS ARE 0402 PACKAGE SIZE
225814 F05
LTC2258-14
25Ω
50Ω
0.1μF
2.7nH
AIN
+
AIN
–
0.1μF
VCM
ANALOG
INPUT
0.1μF
T1
T1: MA/COM ETC1-1-13
RESISTORS, CAPACITORS
ARE 0402 PACKAGE SIZE
225814 F06
LTC2258-14
相关PDF资料 |
PDF描述 |
|---|---|
| LTC2257CUJ-14#PBF | 1-CH 14-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC40 |
| LTC2257IUJ-14#PBF | 1-CH 14-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQCC40 |
| LTC2259CUJ-16#PBF | PROPRIETARY METHOD ADC, PQCC40 |
| LTC2259IUJ-16#PBF | PROPRIETARY METHOD ADC, PQCC40 |
| LTC2259CUJ-16#TRPBF | PROPRIETARY METHOD ADC, PQCC40 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC2256IUJ-14-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:14-Bit, 65/40/25Msps Ultralow Power 1.8V ADCs |
| LTC2256UJ-12 | 制造商:LINER 制造商全称:Linear Technology 功能描述:12-Bit, 65/40/2 5Msps Ultralow Power 1.8V ADCs |
| LTC2256UJ-14 | 制造商:LINER 制造商全称:Linear Technology 功能描述:14-Bit, 65/40/25Msps Ultralow Power 1.8V ADCs |
| LTC2257-12 | 制造商:LINER 制造商全称:Linear Technology 功能描述:12-Bit, 65/40/2 5Msps Ultralow Power 1.8V ADCs |
| LTC2257-14 | 制造商:LINER 制造商全称:Linear Technology 功能描述:14-Bit, 65/40/25Msps Ultralow Power 1.8V ADCs |
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