TI代理,常备极具竞争力的充足现货
TI哪些型号被关注? TI热门产品型号
VCA821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:宽带、大于 40dB 调节范围、dB 线性可变增益放大器
  • 点击这里打开及下载VCA821的技术文档资料
  • TI代理渠道,提供当日发货、严格的质量标准,满足您的目标价格
快速报价,在行业拥有较高的知名度及影响力
VCA821的产品详情:

The VCA821 device is a DC-coupled, wideband, linear in dB, 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 40 dB from the nominal maximum gain set by the gain resistor (RG) and feedback resistor (RF).

The VCA821 device 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 6 dB and 32 dB. Operating from ±5-V supplies, the gain control voltage for the VCA821 device adjusts the gain linearly in dB as the control voltage varies from 0V to +2 V. For example, set at a maximum gain of 20 dB, the VCA821 device provides 20 dB, at VG = +2 V, to less than –20 dB at VG = 0 V. The VCA821 device 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 ±0.3 dB (maximum at +25°C).

VCA821的优势和特性:
  • 710-MHz Small-Signal Bandwidth (G = +2 V/V)
  • 320 MHz, 4 VPP Bandwidth (G = +10 V/V)
  • 0.1-dB Gain Flatness to 135 MHz
  • 2500 V/μs Slew Rate
  • > 40-dB Gain Adjust Range
  • High Gain Accuracy: 20 dB ±0.3 dB
  • High Output Current: ±90 mA
VCA821的参数(英文):
  • PGA/VGA
  • VGA
  • Number of channels (#)
  • 1
  • BW @ Acl (MHz)
  • 710
  • Vs (Max) (V)
  • 12
  • Vs (Min) (V)
  • 7
  • Acl, min spec gain (V/V)
  • 2
  • Gain (Max) (dB)
  • 40
  • Slew rate (Typ) (V/us)
  • 2500
  • Operating temperature range (C)
  • -40 to 85
  • Features
  • Analog Gain Set, Differential to Single-ended conversion
VCA821具体的完整产品型号参数及价格(美元):

VCA821的完整型号有:VCA821ID、VCA821IDGST、VCA821IDR,以下是这些产品的关键参数及官网采购报价:

VCA821ID,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VCA821ID的批量USD价格:4.066(1000+)

VCA821IDGST,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VCA821IDGST的批量USD价格:3.896(1000+)

VCA821IDR,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VCA821IDR的批量USD价格:3.388(1000+)

轻松满足您的TI芯片采购需求
VCA821的评估套件:

DEM-VCA-MSOP-1A — DEM-VCA-MSOP-1A

PSpice for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence 的模拟分析引擎。PSpice for TI 可免费使用,包括业内超大的模型库之一,涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。

借助?PSpice for TI 的设计和仿真环境及其内置的模型库,您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案,然后再进行布局和制造,可缩短产品上市时间并降低开发成本。

在?PSpice for TI 设计和仿真工具中,您可以搜索 TI (...)

TINA-TI — 基于 SPICE 的模拟仿真程序

TINA-TI 提供了 SPICE 所有的传统直流、瞬态和频域分析以及更多。TINA 具有广泛的后处理功能,允许您按照希望的方式设置结果的格式。虚拟仪器允许您选择输入波形、探针电路节点电压和波形。TINA 的原理图捕获非常直观 - 真正的“快速入门”。

TINA-TI 安装需要大约 500MB。直接安装,如果想卸载也很容易。我们相信您肯定会爱不释手。

TINA 是德州仪器 (TI) 专有的 DesignSoft 产品。该免费版本具有完整的功能,但不支持完整版 TINA 所提供的某些其他功能。

如需获取可用 TINA-TI 模型的完整列表,请参阅:SpiceRack - 完整列表

需要 HSpice (...)

TI代理|TI中国代理 - 国内领先的TI芯片采购平台
丰富的可销售TI代理库存,专业的销售团队可随时响应您的紧急需求,目标成为有价值的TI代理