The VCA2617 is a dual-channel, continuously variable, voltage-controlled gain amplifier well-suited for a variety of ultrasound systems as well as applications in proximity detectors and test equipment. The VCA2617 uses a true variable-gain amplifier architecture, achieving very good noise performance at low gains, while not sacrificing high gain distortion performance.

Following a linear-in-dB response, the VCA2617 gain can be varied over a 48dB range with a 0.2V to 2.3V control voltage. Two separate high-impedance control inputs allow for a channel independent variation of the gains. Each channel of the VCA2617 can be configured to provide a gain range of -10dB to 38dB, or -16dB to 32dB, depending on the gain select pin (HG)\. This post-gain feature allows the user to optimize the output swing of VCA2617 for a variety of high-speed analog-to-digital converters (ADC). As a means to improve system overload recovery time, the VCA2617 also provides an internal clamping circuitry where an externally applied voltage sets the desired output clamping level.

The VCA2617 operates on a single +5V supply while consuming only 52mW per channel. It is available in a small QFN-32 package (5x5mm).

• INDEPENDENT CHANNEL CONTROLS:
  • Gain Range: 48dB
  • Clamping Levels
  • Post-Gain: 0, +6dB
• LOW NOISE: 4.1nV/Hz
• LOW POWER: 52mW/Channel
• BANDWIDTH: 50MHz
• HARMONIC DISTORTION: -53dBc at 5MHz
• CROSSTALK: -61dB at 5MHz
• 5V SINGLE SUPPLY
• POWER-DOWN MODE
• SMALL QFN-32 PACKAGE (5x5mm)
• APPLICATIONS
  • MEDICAL AND INDUSTRIAL ULTRASOUND SYSTEMS
    • Suitable for 10-Bit and 12-Bit Systems
  • TEST EQUIPMENT
  • SONAR

All trademarks are the property of their respective owners.

• PGA/VGA
• VGA
• Number of channels (#)
• 2
• BW @ Acl (MHz)
• 50
• Vs (Max) (V)
• 5.25
• Vs (Min) (V)
• 4.75
• Acl, min spec gain (V/V)
• 0.32
• Gain (Max) (dB)
• 48
• Slew rate (Typ) (V/us)
• 100
• Operating temperature range (C)
• -40 to 85
• Features
• Shutdown, Analog Gain Set, Digital Gain Set, Integrated Clamps

VCA2617的完整型号有：VCA2617RHBR、VCA2617RHBT，以下是这些产品的关键参数及官网采购报价：

VCA2617RHBR，工作温度：-40 to 85，封装：VQFN (RHB)-32，包装数量MPQ：3000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VCA2617RHBR的批量USD价格：6.611（1000+）

VCA2617RHBT，工作温度：-40 to 85，封装：VQFN (RHB)-32，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：NIPDAU，TI官网VCA2617RHBT的批量USD价格：7.933（1000+）

VCA2617EVM — VCA2617 评估模块

The VCA2617 is a dual-channel, continuously variable, voltage-controlled amplifier. The VCA2617EVM evaluation module is designed to allow for a quick setup and ease of use in evaluating the performance. Various modes of operation can be configured, for example using the transfomer coupled, or the (...)

VCA2617 TINA-TI Reference Design

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 (...)