VCA2614 具有低噪声前置放大器的双路可变增益放大器
The VCA2614 is a highly integrated, dual receive channel, Variable Gain Amplifier (VGA) with analog gain control.
The VCA2614’s VGA section consists of two parts: the Voltage Controlled Attenuator (VCA) and the Programmable Gain Amplifier (PGA). The gain and gain range of the PGA can be digitally programmed. The combination of these two programmable elements results in a variable gain ranging from 0dB up to a maximum gain as defined by the user through external connections. The single-ended unity gain input buffer provides predictable high input impedance. The output of the VGA can be used in either a single-ended or differential mode to drive high-performance Analog-to-Digital Converters (ADCs). A separate power-down pin reduces power consumption
|
VCA2614 |
| Slew Rate (Typ) (V/us) |
300 |
| GBW (Typ) (MHz) |
100 |
| Vs (Min) (V) |
4.75 |
| Vs (Max) (V) |
5.25 |
| Number of Channels |
2 |
| Pin/Package |
32TQFP |
| BW @ Acl (MHz) |
40 |
| Available Channels |
D |
| Vn at Flatband (Typ) (nV/rtHz) |
4.8 |
| Gain Range (dB) |
4 - 45 |
| Approx. Price (US$) |
8.35 | 1ku |
| Iib (Max) (nA) |
1 |
| Noninverting Input Current Noise (pA/rtHz) |
0.35 |
| 2nd Harmonic (dBc) |
50 |
| 3rd Harmonic (dBc) |
60 |
| @ MHz |
5 |
| Crosstalk (-dB) |
70 |
VCA2614 特性
- GAIN RANGE: 40dB
- 40MHz BANDWIDTH
- LOW CROSSTALK: 70dB at Max Gain, 5MHz
- HIGH-SPEED VARIABLE GAIN ADJUST
- POWER SHUTDOWN MODE
- HIGH IMPEDANCE INPUT BUFFER
- APPLICATIONS
- ULTRASOUND SYSTEMS
- GAMMA CAMERAS
- WIRELESS RECEIVERS
- TEST EQUIPMENT
VCA2614 芯片订购指南
| 器件 |
状态 |
温度 |
价格 |
封装 | 引脚 |
封装数量 | 封装载体 |
丝印标记 |
| VCA2614Y/250 |
ACTIVE |
|
9.25 | 1ku |
TQFP (PFB) | 48 |
250 | SMALL T&R |
|
| VCA2614Y/2K |
ACTIVE |
|
8.35 | 1ku |
TQFP (PFB) | 48 |
2000 | LARGE T&R |
|
VCA2614 质量与无铅数据
| 器件 |
环保计划* |
铅/焊球涂层 |
MSL 等级/回流焊峰 |
环保信息与无铅 (Pb-free) |
DPPM / MTBF / FIT 率 |
| VCA2614Y/250 |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
VCA2614Y/250 |
VCA2614Y/250 |
| VCA2614Y/2K |
Green (RoHS & no Sb/Br) |
CU NIPDAU |
Level-3-260C-168 HR |
VCA2614Y/2K |
VCA2614Y/2K |
VCA2614 应用技术支持与电子电路设计开发资源下载
- VCA2614 数据资料 dataSheet 下载.PDF
- TI 德州仪器PGA/VGA选型与价格 . xls
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
- 使您的仪器放大器设计达到最佳效果 (zhct011.PDF, 897 KB)
- 低成本电流并联监视器 IC 使动圈式仪表设计复兴 (zhct030.PDF, 1.04 MB)
- PGA280 Communication via SPITM (sboa119.HTM, 8 KB)
- Programmable-Gain Instrumentation Amplifiers (sboa024.HTM, 8 KB)
- Driving High-Speed ADCs: Circuit Topologies and System-Level Parameter (slaa416a.HTM, 9 KB)
- A Numerical Solution to an Analog Problem (sboa124.HTM, 8 KB)
- TI 工业自动电机控制/驱动器解决方案 2011 (Rev. B) (PDF 1322 KB)
- 在 PSPICE 中使用德州仪器 (TI) SPICE 模型 (zhca088.HTM, 8 KB)
- PowerPADTM Thermally Enhanced Package (slma002g.HTM, 8 KB)
- 运算放大器的单电源操作 (PDF 2174 KB)
- Tuning in Amplifiers (PDF 44 KB)
- Op Amp Performance Analysis (PDF 76 KB)
- An Error Analysis of the ISO102 in a Small Signal Measuring Application (PDF 29 KB)
- Level Shifting Signals with Differential Amplifiers (PDF 23 KB)
- Operational Amplifier Macromodels: A Comparison (PDF 59 KB)
VCA2614 工具与软件