VCA822 宽带、大于 40dB 增益调节范围、V/V 线性可变增益放大器

The VCA822 is a dc-coupled, wideband, linear in V/V, continuously variable, voltage-controlled gain amplifier. It provides a differential input to single-ended conversion with a high-impedance gain control input used to vary the gain down 40dB from the nominal maximum gain set by the gain resistor (RG) and feedback resistor (RF).

The VCA822 internal architecture consists of two input buffers and an output current feedback amplifier stage integrated with a multiplier core to provide a complete variable gain amplifier (VGA) system that does not require external buffering. The maximum gain is set externally with two resistors, providing flexibility in designs. The maximum gain is intended to be set between +2V/V and +100V/V

VCA820 VCA821 VCA822 VCA824
Iq per channel (Max) (mA) 34     34     38     35    
Slew Rate (Typ) (V/us) 1700     2500     1700     2500    
Io (Typ) (mA) 160     60     160     60    
Vs (Min) (V) 7     7     7     8    
Vs (Max) (V) 12     12     12     12    
Number of Channels 1     1     1     1    
Pin/Package 10MSOP, 14SOIC 10MSOP, 14SOIC 10MSOP, 14SOIC 10MSOP, 14SOIC
Diff Gain (%) 0.05     0.05     0.05      
Diff Phase (deg) 0.05     0.05     0.05      
Vio (Max) (mV) 17     17     17     17    
Offset Voltage Drift (+/-) (Max) (uV/Degrees Celsius) 30     30     30     30    
Available Channels S     S     S     S    
Vn at Flatband (Typ) (nV/rtHz) 8.2     6     8.2     6    
Gain Range (dB) 40     40     40     40    
Approx. Price (US$) 2.80 | 1ku     3.50 | 1ku     2.80 | 1ku     3.50 | 1ku    
Iib (Max) (nA) 25000     25000     25000     25000    
Noninverting Input Current Noise (pA/rtHz) 2.6     2.6     2.6     2.6    
2nd Harmonic (dBc) 62     66     62     64    
3rd Harmonic (dBc) 68     63     68     61    
@ MHz 20     20     20     20    
BW @ G=+2 (MHz) 168     710     168     710    
0.1 dB BW Flatness (MHz)     28      
Operating Temperature Range (C) -40 to 85     -40 to 85     -40 to 85     -40 to 85
VCA822 特性
VCA822 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
VCA822ID ACTIVE -40 to 85 3.40 | 1ku SOIC (D) | 14 50 | TUBE  
VCA822IDG4 ACTIVE -40 to 85 3.40 | 1ku SOIC (D) | 14 50 | TUBE  
VCA822IDGSR ACTIVE -40 to 85 2.80 | 1ku MSOP (DGS) | 10 2500 | LARGE T&R  
VCA822IDGSRG4 ACTIVE -40 to 85 2.80 | 1ku MSOP (DGS) | 10 2500 | LARGE T&R  
VCA822IDGST ACTIVE -40 to 85 3.25 | 1ku MSOP (DGS) | 10 250 | SMALL T&R  
VCA822IDGSTG4 ACTIVE -40 to 85 3.25 | 1ku MSOP (DGS) | 10 250 | SMALL T&R  
VCA822IDR ACTIVE -40 to 85 2.80 | 1ku SOIC (D) | 14 2500 | LARGE T&R  
VCA822IDRG4 ACTIVE -40 to 85 2.80 | 1ku SOIC (D) | 14 2500 | LARGE T&R  
VCA822 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
VCA822ID Green (RoHS & no Sb/Br)   CU NIPDAU   Level-2-260C-1 YEAR VCA822ID VCA822ID
VCA822IDG4 Green (RoHS & no Sb/Br)   CU NIPDAU   Level-2-260C-1 YEAR VCA822IDG4 VCA822IDG4
VCA822IDGSR Green (RoHS & no Sb/Br)   CU NIPDAU   Level-2-260C-1 YEAR VCA822IDGSR VCA822IDGSR
VCA822IDGSRG4 Green (RoHS & no Sb/Br)   CU NIPDAU   Level-2-260C-1 YEAR VCA822IDGSRG4 VCA822IDGSRG4
VCA822IDGST Green (RoHS & no Sb/Br)   CU NIPDAU   Level-2-260C-1 YEAR VCA822IDGST VCA822IDGST
VCA822IDGSTG4 Green (RoHS & no Sb/Br)   CU NIPDAU   Level-2-260C-1 YEAR VCA822IDGSTG4 VCA822IDGSTG4
VCA822IDR Green (RoHS & no Sb/Br)   CU NIPDAU   Level-2-260C-1 YEAR VCA822IDR VCA822IDR
VCA822IDRG4 Green (RoHS & no Sb/Br)   CU NIPDAU   Level-2-260C-1 YEAR VCA822IDRG4 VCA822IDRG4
VCA822 应用技术支持与电子电路设计开发资源下载
  1. VCA822 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器PGA/VGA选型与价格 . xls
  3. 所选封装材料的热学和电学性质 (PDF 645 KB)
  4. 高速数据转换 (PDF 1967 KB)
  5. 使您的仪器放大器设计达到最佳效果 (zhct011.PDF, 897 KB)
  6. 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)
  7. PGA280 Communication via SPI™ (sboa119.HTM, 8 KB)
  8. Programmable-Gain Instrumentation Amplifiers (sboa024.HTM, 8 KB)
  9. Driving High-Speed ADCs: Circuit Topologies and System-Level Parameter (slaa416a.HTM, 9 KB)
  10. A Numerical Solution to an Analog Problem (sboa124.HTM, 8 KB)
  11. TI 工业自动电机控制/驱动器解决方案 2011 (Rev. B) (PDF 1322 KB)
  12. 在 PSPICE 中使用德州仪器 (TI) SPICE 模型 (zhca088.HTM, 8 KB)
  13. PowerPAD™ Thermally Enhanced Package (slma002g.HTM, 8 KB)
  14. 运算放大器的单电源操作 (PDF 2174 KB)
  15. Tuning in Amplifiers (PDF 44 KB)
  16. Op Amp Performance Analysis (PDF 76 KB)
  17. An Error Analysis of the ISO102 in a Small Signal Measuring Application (PDF 29 KB)
  18. Level Shifting Signals with Differential Amplifiers (PDF 23 KB)
  19. Operational Amplifier Macromodels: A Comparison (PDF 59 KB)
VCA822 工具与软件
培训内容 型号 软件/工具类型
VCA822 评估模块 VCA822EVM 开发电路板/EVM