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整合式與特殊功能資料轉換器
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AFE5851

現行

具類比轉數位轉換器 (ADC) 的 16 通道 VGA

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產品規格表

AFE5851

現行
產品規格表 立即訂購

產品詳細資料

Device type Receiver Number of input channels 16 Active supply current (typ) (mA) 4.7 Supply voltage (max) (V) 3.6 Operating temperature range (°C) -40 to 85 Interface type Serial LVDS Features Analog Front End (AFE) Rating Catalog
Device type Receiver Number of input channels 16 Active supply current (typ) (mA) 4.7 Supply voltage (max) (V) 3.6 Operating temperature range (°C) -40 to 85 Interface type Serial LVDS Features Analog Front End (AFE) Rating Catalog
VQFN (RGC) 64 81 mm² 9 x 9
  • 16 Variable Gain Amplifiers (VGA)
    • 16 Single-Ended Buffered Inputs With 1VPP Maximum Swing
    • 5.5nV/√Hz VCA Input Noise (31dB Gain).
    • Variable Gain –5dB to 31dB With 0.125dB Steps
    • Digital Gain Control
  • 3rd Order Anti-Aliasing Filter With Programmable Cut-Off Frequency (7.5, 10 and 14MHz).
  • Clamping
  • Analog-to-Digital Converter (ADC)
    • Octal channel 12-bit, 65 MSPS
    • 32.5 MSPS Maximum per Input Channel
    • 2 VGA Outputs Alternately Sampled by Each ADC
    • Internal and External Reference Support
    • No External Decoupling Required for References
    • Serial LVDS Outputs
  • 1.8V and 3.3V Supply
  • 39 mW Total Power per Channel at 32.5 MSPS
  • 64-QFN Package (9mm × 9mm)
  • APPLICATIONS
    • Imaging: Ultrasound, PET
  • RELATED DEVICES
    • AFE5801: Octal VGA+ADC, 65 MSPS/channel
  • 16 Variable Gain Amplifiers (VGA)
    • 16 Single-Ended Buffered Inputs With 1VPP Maximum Swing
    • 5.5nV/√Hz VCA Input Noise (31dB Gain).
    • Variable Gain –5dB to 31dB With 0.125dB Steps
    • Digital Gain Control
  • 3rd Order Anti-Aliasing Filter With Programmable Cut-Off Frequency (7.5, 10 and 14MHz).
  • Clamping
  • Analog-to-Digital Converter (ADC)
    • Octal channel 12-bit, 65 MSPS
    • 32.5 MSPS Maximum per Input Channel
    • 2 VGA Outputs Alternately Sampled by Each ADC
    • Internal and External Reference Support
    • No External Decoupling Required for References
    • Serial LVDS Outputs
  • 1.8V and 3.3V Supply
  • 39 mW Total Power per Channel at 32.5 MSPS
  • 64-QFN Package (9mm × 9mm)
  • APPLICATIONS
    • Imaging: Ultrasound, PET
  • RELATED DEVICES
    • AFE5801: Octal VGA+ADC, 65 MSPS/channel

The AFE5851 is an analog front-end targeting applications where the power and level of integration are critical. The device contains 16 variable gain amplifiers (VGA), followed by an octal high speed (up to 65 MSPS) analog to digital converter (ADC).

Each of the 16 single ended inputs is buffered, accepts up to 1VPP maximum input swing and it 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 anti-alias low pass filter (with 3dB attenuation at 7.5, 10 or 14MHz) is also integrated between the VGA and ADC for every channel. The VGA/anti-alias filter outputs are differential (limited to 2 VPP) and drive the on-board 12-bit 65MSPS ADC that is shared between two VGAs to optimize the power dissipation. Each VGA output is sampled at alternate clock cycles, making the effective sampling frequency half the input clock rate. The ADC also scales down its power consumption should a lower sampling rate be selected.

The ADC outputs are serialized in LVDS streams further minimizing power and board area. The AFE5851 is available in a 64-pin QFN package (9x9mm2) and is specified over the full industrial temperature range (–40°C to 85°C).

The AFE5851 is an analog front-end targeting applications where the power and level of integration are critical. The device contains 16 variable gain amplifiers (VGA), followed by an octal high speed (up to 65 MSPS) analog to digital converter (ADC).

Each of the 16 single ended inputs is buffered, accepts up to 1VPP maximum input swing and it 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 anti-alias low pass filter (with 3dB attenuation at 7.5, 10 or 14MHz) is also integrated between the VGA and ADC for every channel. The VGA/anti-alias filter outputs are differential (limited to 2 VPP) and drive the on-board 12-bit 65MSPS ADC that is shared between two VGAs to optimize the power dissipation. Each VGA output is sampled at alternate clock cycles, making the effective sampling frequency half the input clock rate. The ADC also scales down its power consumption should a lower sampling rate be selected.

The ADC outputs are serialized in LVDS streams further minimizing power and board area. The AFE5851 is available in a 64-pin QFN package (9x9mm2) and is specified over the full industrial temperature range (–40°C to 85°C).
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重要文件 類型 標題 格式選項 日期
* Data sheet 16 CHANNEL VARIABLE GAIN AMPLIFIER (VGA) WITH OCTAL HIGH SPEED ADC datasheet (Rev. B) 2010年 5月 3日
User guide AFE5851 16-Channel Variable Gain Ampl w/Octal High-Speed ADC (Rev. C) 2015年 3月 5日
User guide TSW1250EVM: High-Speed LVDS Deserializer and Analysis System (Rev. F) 2012年 1月 20日
More literature Ultrasound flyer (Rev. A) 2011年 9月 22日
More literature AFE5851 EVM Installer VO 02 2009年 5月 20日

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AFE5851EVM — AFE5851 評估模組

The AFE5851 includes an 16-channel Voltage-Controlled-Amplifier (VCA) with digital control and an 8-channel 65MSPS analog-to-digital converter (ADC). The 16 analog input signals will be processed by the analog front-end circuit of AFE5851; the outputs of the analog front-end will then be (...)

使用指南: PDF
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開發模組 (EVM) 的 GUI

DATACONVERTERPRO-SW — High Speed Data Converter Pro GUI Installer, v5.31

This high-speed data converter pro GUI is a PC (Windows® XP/7/10 compatible) program designed to aid in evaluation of most TI high-speed data converter [analog-to-digital converter (ADC) and digital-to-analog converter (DAC)] and analog front-end (AFE) platforms. Designed to support the entire (...)

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SLOC231 — TSW1250EVM Software

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計算工具

SLOC145 — AFE5801 and AFE5851 TGC Calculator

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