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VCA820的基本参数
  • 制造厂商:TI
  • 产品类别:放大器
  • 技术类目:可编程和可变增益放大器(PGA 和 VGA)
  • 功能描述:具有 dB 线性可变增益控制放大器的 150MHz BW
  • 点击这里打开及下载VCA820的技术文档资料
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VCA820的产品详情:

The VCA820 is a dc-coupled, wideband, linear in dB, continuously variable, voltage-controlled gain amplifier. The VCA820 provides a differential input to single-ended conversion with a high-impedance gain control input, used to vary the gain down 40 dB from the nominal maximum gain set by the gain resistor (RG) and feedback resistor (RF).

The VCA820 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 +2 V/V and +100 V/V. Operating from ±5-V supplies, the gain control voltage for the VCA820 adjusts the gain linearly in dB as the control voltage varies from 0 V to +2 V. For example, set for a maximum gain of +10 V/V, the VCA820 provides 20 dB, at +2-V input, to –20 dB at 0-V input of gain control range. The VCA820 offers excellent gain linearity. For a 20-dB maximum gain, and a gain-control input voltage varying between 1 V and 2 V, the gain does not deviate by more than ±0.4dB (maximum at +25°C).

VCA820的优势和特性:
  • 150-MHz Small-Signal Bandwidth
  • 137-MHz, 5-VPP Bandwidth (G = +10 V/V)
  • 0.1-dB Gain Flatness to 28 MHz
  • 1700-V/μs Slew Rate
  • > 40-dB Gain Adjust Range
  • High Gain Accuracy: 20 dB ±0.4dB
  • High Output Current: 160 mA
  • APPLICATIONS
    • AGC Receivers With RSSI
    • Differential Line Receivers
    • Pulse Amplitude Compensation
    • Variable Attenuators

All other trademarks are the property of their respective owners

VCA820的参数(英文):
  • PGA/VGA
  • VGA
  • Number of channels (#)
  • 1
  • BW @ Acl (MHz)
  • 150
  • Vs (Max) (V)
  • 12
  • Vs (Min) (V)
  • 7
  • Acl, min spec gain (V/V)
  • 10
  • Gain (Max) (dB)
  • 40
  • Slew rate (Typ) (V/us)
  • 1700
  • Operating temperature range (C)
  • -40 to 85
  • Features
  • Analog Gain Set, Differential to Single-ended conversion
VCA820具体的完整产品型号参数及价格(美元):

VCA820的完整型号有:VCA820ID、VCA820IDGSR、VCA820IDGST、VCA820IDR,以下是这些产品的关键参数及官网采购报价:

VCA820ID,工作温度:-40 to 85,封装:SOIC (D)-14,包装数量MPQ:50个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAU,TI官网VCA820ID的批量USD价格:3.415(1000+)

VCA820IDGSR,工作温度:-40 to 85,封装:VSSOP (DGS)-10,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAUAG,TI官网VCA820IDGSR的批量USD价格:3.273(1000+)

VCA820IDGST,工作温度:-40 to 85,封装:VSSOP (DGS)-10,包装数量MPQ:250个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAUAG,TI官网VCA820IDGST的批量USD价格:3.842(1000+)

VCA820IDR,工作温度:-40 to 85,封装:SOIC (D)-14,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAU,TI官网VCA820IDR的批量USD价格:2.846(1000+)

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VCA820的评估套件:

DEM-VCA-MSOP-1A — DEM-VCA-MSOP-1A

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