• - 交流-直流(AC-DC)控制器和稳压器
• - 直流-直流(DC-DC)控制器、转换器和稳压器
• - 电压和电流管理
• - 通讯IC
• - 驱动器
• - 热管理

• - 时钟及数据分配
• - 标准逻辑

• - 放大器和比较器
• - 模拟开关
• - 数字电位计
• - 接口
• - EMI和RFI滤波器

• - EEPROM存储器
• - 非易失性只读存储器(NVRAM)
• - SRAM存储器

说明

The VCA2616 and VCA2611 are dual, Low-Noise Preamplifiers (LNP), plus low-noise Variable Gain Amplifiers (VGA). The VCA2611 is an upgraded version of the VCA2616. The only difference between the VCA2616 and the VCA2611 is the input structure to the LNP. The VCA2616 is limited to –0.3V negative-going input spikes; the VCA2611 is limited to –2.0V negative-going input spikes. This change allows the user to use slower and less expensive input clamping diodes prior to the LNP input. In some designs, input clamping may not be required.

The combination of Active Termination (AT) and Maximum Gain Select (MGS) allow for the best noise performance. The VCA2616 and VCA2611 also feature low crosstalk and outstanding distortion performance.

特性

• LOW-NOISE PREAMP:
  • Low Input Noise: 0.95nV/Hz
  • Active Termination Noise Reduction
  • Switchable Termination Value
  • 80MHz Bandwidth
  • 5dB to 25dB Gain
  • Differential In and Out
• LOW-NOISE VARIABLE GAIN AMPLIFIER:
  • Low Noise VCA
  • Up to 40dB Gain Range
  • 40MHz Bandwidth
  • Differential In and Out
• LOW CROSSTALK: 66dB at Max Gain, 5MHz
• HIGH-SPEED VARIABLE GAIN ADJUST
• SWITCHABLE EXTERNAL PROCESSING
• APPLICATIONS
  • ULTRASOUND SYSTEMS
  • WIRELESS RECEIVERS
  • TEST EQUIPMENT

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