参数资料
| 型号： | LTC2205IUK-14#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 9/28页 |
| 文件大小： | 0K |
| 描述： | IC ADC 14BIT 65MSPS 48-QFN |
| 标准包装： | 52 |
| 位数： | 14 |
| 采样率（每秒）： | 65M |
| 数据接口： | 并联 |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 776mW |
| 电压电源： | 单电源 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-WFQFN 裸露焊盘 |
| 供应商设备封装： | 48-QFN-EP（7x7） |
| 包装： | 管件 |
| 输入数目和类型： | 1 个差分 |
| 配用： | DC890B-ND - BOARD USB DATA COLLECTION |
第1页第2页第3页第4页第5页第6页第7页第8页当前第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页
LTC2205-14
17
220514fb
Figure 3. Single-Ended to Differential Conversion Using a Transformer.
Recommended for Input Frequencies from 5MHz to 150MHz
Figure 4a. Using a Transmission Line Balun Transformer.
Recommended for Input Frequencies from 150MHz to 250MHz
Figure 4b. Using a Transmission Line Balun Transformer.
Recommended for Input Frequencies from 250MHz to 500MHz
Direct Coupled Circuits
Figure 5 demonstrates the use of a differential amplier to
convert a single ended input signal into a differential input
signal. The advantage of this method is that it provides
low frequency input response; however, the limited
gain bandwidth of any op amp or closed-loop amplier
will degrade the ADC SFDR at high input frequencies.
Additionally, wideband op amps or differential ampliers
tend to have high noise. As a result, the SNR will be
degraded unless the noise bandwidth is limited prior to
the ADC input.
Center-tapped transformers provide a convenient means
of DC biasing the secondary; however, they often show
poor balance at high input frequencies, resulting in large
2nd order harmonics.
Figure 4a shows transformer coupling using a transmission
line balun transformer. This type of transformer has much
better high frequency response and balance than ux
coupled center tap transformers. Coupling capacitors are
added at the ground and input primary terminals to allow
the secondary terminals to be biased at 1.25V. Figure
4b shows the same circuit with components suitable for
higher input frequencies.
APPLICATIONS INFORMATION
35Ω
5Ω
35Ω
10Ω
5Ω
0.1μF
AIN
+
AIN
–
8.2pF
2.2μF
8.2pF
VCM
T1
T1 = MA/COM ETC1-1T
RESISTORS, CAPACITORS
ARE 0402 PACKAGE SIZE
EXCEPT 2.2μF
220514 F03
LTC2205-14
0.1μF
AIN
+
AIN
–
4.7pF
2.2μF
4.7pF
VCM
LTC2205-14
ANALOG
INPUT
0.1mF
T1
1:1
T1 = MA/COM ETC1-1-13
RESISTORS, CAPACITORS
ARE 0402 PACKAGE SIZE
EXCEPT 2.2mF
220514 F04a
5Ω
10Ω
25Ω
10Ω
5Ω
0.1μF
AIN
+
AIN
–
2.2μF
2.2pF
VCM
LTC2205-14
ANALOG
INPUT
0.1μF
T1
1:1
T1 = MA/COM ETC1-1-13
RESISTORS, CAPACITORS
ARE 0402 PACKAGE SIZE
EXCEPT 2.2μF
22054 F04b
5Ω
25Ω
5Ω
相关PDF资料 |
PDF描述 |
|---|---|
| LTC2207IUK-14#PBF | IC ADC 14BIT 105MSPS 48-QFN |
| LTC2220IUP-1#TRPBF | IC ADC 12BIT 185MSPS 64-QFN |
| LTC2221IUP#TRPBF | IC ADC 12-BIT 135MSPS 64-QFN |
| LTC2222IUK-11#TRPBF | IC ADC 11BIT 105MSPS SAMPL 48QFN |
| LTC2223IUK#TRPBF | IC ADC 12BIT 80MSPS SAMPLE 48QFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC2205IUK-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:16-Bit, 65Msps/40Msps |
| LTC2205IUK-TR | 制造商:LINER 制造商全称:Linear Technology 功能描述:16-Bit, 65Msps/40Msps |
| LTC2205IUK-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:16-Bit, 65Msps/40Msps |
| LTC2205UK | 制造商:LINER 制造商全称:Linear Technology 功能描述:16-Bit, 65Msps/40Msps |
| LTC2205UK-14 | 制造商:LINER 制造商全称:Linear Technology 功能描述:14-Bit, 65Msps ADC |
发布紧急采购，3分钟左右您将得到回复。