The AFE5801 is an analog front end, targeting applications where the power and level of integration are critical. The device contains eight variable-gain amplifiers (VGA), each followed by a high-speed (up to 65MSPS) ADC, for a total of eight ADCs per device.

Each of the eight differential inputs is buffered, accepts up to 2Vpp maximum input swing, and is followed by a VGA with a gain range from –5dB to 31dB. The VGA gain is digitally controlled, and the gain curves versus time can be stored in memory integrated within the device using the serial interface.

A selectable clamping and antialias low-pass filter (with 3dB attenuation at 7.5, 10, or 14MHz) is also integrated between VGA and ADC, for every channel.

The VGA/antialias filter outputs are differential (limited to 2Vpp) and drive the onboard 12bit, 65MSPS ADC. The ADC also scales down its power consumption should a lower sampling rate be selected. The ADC outputs are serialized in LVDS streams, which further minimizes power and board area.

The AFE5801 is available in a 64-pin QFN package (9mm × 9mm) and is specified over the full industrial temperature range (–40°C to 85°C).

• Eight Variable-Gain Amplifiers (VGA)
  • Eight Differential Buffered Inputs With 2Vpp Maximum Swing
  • 5.5nV/√Hz VCA Input Noise (31dB Gain)
  • Variable Gain, –5dB to 31dB With 0.125dB or 1dB Steps
  • Digital Gain Control
• Third-Order Antialiasing Filter With Programmable Cutoff Frequency (7.5, 10, or 14MHz)
• Clamping
• Analog-to-Digital Converter (ADC)
  • Octal Channel, 12Bit, 65MSPS
  • Internal and External Reference Support
  • No External Decoupling Required for References
  • Serial LVDS Outputs
• 1.8V and 3.3V Supplies
• 50mW Total Power per Channel at 30MSPS
• 58mW Total Power per Channel at 50MSPS
• 64QFN Package (9mm × 9mm)
• APPLICATIONS
  • Imaging: Ultrasound, PET
• APPLICATIONS
  • AFE5851: 16-Channel VGA + ADC, 32.5MSPS/Channel

• Number of input channels
• 8
• Active supply current (Typ) (mA)
• 6
• Supply voltage (Max) (V)
• 3.6
• Operating temperature range (C)
• -40 to 85
• Interface type
• Serial LVDS
• Features
• Analog Front End (AFE)

AFE5801的完整型号有：AFE5801IRGCR、AFE5801IRGCT，以下是这些产品的关键参数及官网采购报价：

AFE5801IRGCR，工作温度：-40 to 85，封装：VQFN (RGC)-64，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：NIPDAU，TI官网AFE5801IRGCR的批量USD价格：38.72（1000+）

AFE5801IRGCT，工作温度：-40 to 85，封装：VQFN (RGC)-64，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：NIPDAU，TI官网AFE5801IRGCT的批量USD价格：40.72（1000+）

AFE5801EVM — AFE5801 评估模块

AFE5801 将 8 通道压控放大器 (VCA) 与数字控制及 8 通道 65MSPS 模数转换器 (ADC) 集成在一起。8 模拟输入信号由 AFE5801 的模拟前端电路处理；然后器件中的 ADC 会将模拟前端的输出数字化。我们推荐使用德州仪器 (TI) 的 TSW1250EVM 来处理采样数据。TSW1250EVM 包括高速 LVDS 解串器、多路解复用器和分析系统，它提供了一整套硬件和用户界面软件来有效评估 AFE5801 的性能。

AFE5801 EVM GUI Installer Software V0.01

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。

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