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参数资料
| 型号： | LTC6605CDJC-7#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 9/20页 |
| 文件大小： | 0K |
| 描述： | IC FILTER 7MHZ DUAL 22-DFN |
| 标准包装： | 2,500 |
| 滤波器类型： | 抗混迭 |
| 频率 - 截止或中心： | 5MHz |
| 滤波器数： | 2 |
| 滤波器阶数： | 2nd |
| 电源电压： | 2.7 V ~ 5.25 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 22-WFDFN 裸露焊盘 |
| 供应商设备封装： | 22-DFN（6x3）裸露焊盘 |
| 包装： | 带卷 (TR) |
LTC6605-7
17
66057f
Figure 8. Driving an ADC
66057 F08
3.3V
0.1μF
2.2μF
1μF
BIAS
τ = R (C1 + 2 C2)
CONTROL
ADC
3V
D15
D0
VOCM
VIN
–
+
21
19
AIN
+
AIN
–
VCM
GND
22
18
10nF
2
3
4
1
5
20
C1
C2
10Ω
R
C1
+
–
1/2 LTC6605-7
CHANNEL A
APPLICATIONS INFORMATION
the sampling transient of the ADC (see Figure 8). The
capacitance serves to provide the bulk of the charge
during the sampling process, while the two resistors at
the outputs of the LTC6605-7 are used to dampen and
attenuate any charge injected by the ADC. The RC lter
gives the additional benet of band limiting broadband
output noise. The selection of the RC time constant is trial
and error for a given ADC, but the following guidelines are
recommended. Choose an RC time constant that is smaller
than the reciprocal of the lter cutoff frequency congured
by the LTC6605-7. Time constants on the order of 2ns
do a good job of ltering broadband noise. Longer time
constants improve SNR at the expense of settling time.
The resistors in the decoupling network should be at least
25Ω. Too large of a resistor will leave insufcient settling
time. Too small of a resistor will not properly dampen the
load transient of the sampling process, prolonging the
time required for settling. In 16-bit applications, this will
typically require a minimum of eleven RC time constants.
The 10Ω resistors at the inputs to the ADC minimize the
sampling transients that charge the RC lter capacitors.
For lowest distortion, choose capacitors with low dielectric
absorption, such as a C0G multilayer ceramic capacitor.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC6605IDJC-10#PBF | 功能描述:IC FILTER 10MHZ DUAL 22-DFN RoHS:是 类别:集成电路 (IC) >> 接口 - 滤波器 - 有源 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1,000 系列:- 滤波器类型:连续时间，带通低通 频率 - 截止或中心:150kHz 滤波器数:4 滤波器阶数:8th 电源电压:4.74 V ~ 11 V，±2.37 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) |
| LTC6605IDJC-10#TRPBF | 功能描述:IC FILTER 10MHZ DUAL 22-DFN RoHS:是 类别:集成电路 (IC) >> 接口 - 滤波器 - 有源 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1,000 系列:- 滤波器类型:连续时间，带通低通 频率 - 截止或中心:150kHz 滤波器数:4 滤波器阶数:8th 电源电压:4.74 V ~ 11 V，±2.37 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) |
| LTC6605IDJC-10-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Matched 10MHz Filter with Low Noise, Low Distortion Differential Amplifi er |
| LTC6605IDJC-10-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Matched 10MHz Filter with Low Noise, Low Distortion Differential Amplifi er |
| LTC6605IDJC-14#PBF | 功能描述:IC FILTER 14MHZ DUAL 22-DFN RoHS:是 类别:集成电路 (IC) >> 接口 - 滤波器 - 有源 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1,000 系列:- 滤波器类型:连续时间，带通低通 频率 - 截止或中心:150kHz 滤波器数:4 滤波器阶数:8th 电源电压:4.74 V ~ 11 V，±2.37 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) |
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