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PGA/VGA VGA Number of channels 8 Vs (min) (V) 3.14 Vs (max) (V) 3.47 BW at Acl (MHz) 55 Acl, min spec gain (V/V) 10 Gain (max) (dB) 51 Rating Catalog Operating temperature range (°C) -40 to 85
PGA/VGA VGA Number of channels 8 Vs (min) (V) 3.14 Vs (max) (V) 3.47 BW at Acl (MHz) 55 Acl, min spec gain (V/V) 10 Gain (max) (dB) 51 Rating Catalog Operating temperature range (°C) -40 to 85
VQFN (RGC) 64 81 mm² (9 mm × 9 mm)
  • Ultralow Power: 65mW/Channel
  • Low Noise: 0.8nV/Hz
  • Low-Noise Pre-Amp (LNP):
    • 20dB Fixed Gain
    • 250mVPP Linear Input Range
  • Variable Gain Amplifier:
    • Gain Control Range: 46dB
    • Selectable PGA Gain:
      20dB, 25dB, 27dB, 30dB
    • Fast Overload Recovery
    • Output Clamping Control
  • Integrated Low-Pass Filter:
    • Second-Order, Linear Phase
    • Bandwidth: 10MHz, 15MHz
  • High Accuracy:
    • Low Gain Error: ±0.5dB
    • Excellent Channel Matching: ±0.25dB
  • Distortion, HD2: -50dBc at 5MHz
  • Integrated CW Switch Matrix:
    • Easy Current Summing
  • Serial Control Interface
  • Small Package: QFN-64, 9×9mm

PowerPAD Is a trademark of Texas Instruments.

Infineon is a registered trademark of Infineon Technologies.

SPI is a trademark of Motorola.

All other trademarks are the property of their respective owners

  • Ultralow Power: 65mW/Channel
  • Low Noise: 0.8nV/Hz
  • Low-Noise Pre-Amp (LNP):
    • 20dB Fixed Gain
    • 250mVPP Linear Input Range
  • Variable Gain Amplifier:
    • Gain Control Range: 46dB
    • Selectable PGA Gain:
      20dB, 25dB, 27dB, 30dB
    • Fast Overload Recovery
    • Output Clamping Control
  • Integrated Low-Pass Filter:
    • Second-Order, Linear Phase
    • Bandwidth: 10MHz, 15MHz
  • High Accuracy:
    • Low Gain Error: ±0.5dB
    • Excellent Channel Matching: ±0.25dB
  • Distortion, HD2: -50dBc at 5MHz
  • Integrated CW Switch Matrix:
    • Easy Current Summing
  • Serial Control Interface
  • Small Package: QFN-64, 9×9mm

PowerPAD Is a trademark of Texas Instruments.

Infineon is a registered trademark of Infineon Technologies.

SPI is a trademark of Motorola.

All other trademarks are the property of their respective owners

The VCA8500 is an 8-channel variable gain amplifier consisting of a low-noise pre-amplifier (LNP) and a variable-gain amplifier (VGA). This combination, along with the device features, makes it ideal for a variety of ultrasound systems.

The LNP gain is fixed at 20dB, and has excellent noise and signal handling characteristics. The gain of the voltage-controlled attenuator can vary over a 46dB range with a 0V to 1.2V control voltage common to all channels of the VCA8500.

The post-gain amplifier (PGA) can be programmed for four gain settings: 20dB, 25dB, 27dB, or 30dB gain. As a means to improve system overload recovery time, the VCA8500 provides an internal clamping function. The PGA settings as well the clamp levels are controlled through the serial interface.

The VCA8500 is built on TI's BiCOM process and is available in a small QFN-64 PowerPAD package.

The VCA8500 is an 8-channel variable gain amplifier consisting of a low-noise pre-amplifier (LNP) and a variable-gain amplifier (VGA). This combination, along with the device features, makes it ideal for a variety of ultrasound systems.

The LNP gain is fixed at 20dB, and has excellent noise and signal handling characteristics. The gain of the voltage-controlled attenuator can vary over a 46dB range with a 0V to 1.2V control voltage common to all channels of the VCA8500.

The post-gain amplifier (PGA) can be programmed for four gain settings: 20dB, 25dB, 27dB, or 30dB gain. As a means to improve system overload recovery time, the VCA8500 provides an internal clamping function. The PGA settings as well the clamp levels are controlled through the serial interface.

The VCA8500 is built on TI's BiCOM process and is available in a small QFN-64 PowerPAD package.

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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 8-Channel, Ultralow-Power, Variable Gain Amplifier with Low-Noise Pre-Amp 数据表 (Rev. A) 2008-3-19
用户指南 VCA8500BOARD (Rev. B) 2013-1-25

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ADS5282EVM — ADS5282 八通道 12 位 65MSPS 模数转换器评估模块

特别说明:希望评估 ADS528x 的客户应订购 ADS528xEVM、ADSDESER-50EVM 和 ADSDESER-50EVM 适配卡。

ADS5282EVM 提供一个平台,用于在各种信号、基准和电源条件下对八通道 ADS5282 模数转换器 (ADC) 进行评估。

该 EVM 提供了一个外部 SMA 连接器,用于连接 ADC 的八个模拟输入和 ADC 时钟的输入。可使用单端或差分时钟为 ADC 提供计时,EVM 上的配置允许用户使用单端 PECL 时钟或差分变压器耦合时钟来评估 ADC。

EVM 通过高速、高密度 Samtec 输出接头提供数字输出。数字输出连接器直接连接到 (...)

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SLOC101 — VCA8500BOARD SOFTWARE

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SLOM161.ZIP (35 KB) - PSpice 模型
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SBOM773.TSC (50 KB) - TINA-TI 参考设计
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SBOM774.ZIP (7 KB) - TINA-TI Spice 模型
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VQFN (RGC) 64 Ultra Librarian

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