Product details

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)
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)
VQFN (RGC) 64 81 mm² 9 x 9
  • 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

  • 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

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).

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).

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Technical documentation

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Type Title Date
* Data sheet 8-Channel Variable-Gain Amplifier (VGA) With Octal High-Speed ADC datasheet (Rev. D) 24 May 2010
Technical article Offset correction improves the next generation of heart-rate smart watches 24 Aug 2015
User guide AFE5801 8-Channel Varable Gain Ampl w/Octal High-Speed ADC (Rev. B) 05 Mar 2015
Technical article JESD204B: Is it for you? 14 Mar 2014
Technical article A new way to illuminate the human condition 30 Dec 2013
Technical article Oximeter signaling: There’s more than meets the eye 04 Dec 2013
User guide TSW1250EVM: High-Speed LVDS Deserializer and Analysis System (Rev. F) 20 Jan 2012
More literature Ultrasound flyer (Rev. A) 22 Sep 2011
More literature Ultrasound flyer 15 Mar 2011

Design & development

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Evaluation board

AFE5801EVM — AFE5801 evaluation module

The AFE5801 includes an 8-channel Voltage-Controlled-Amplifier (VCA) with digital control and an 8-channel 65MSPS analog-to-digital converter (ADC). The 8 analog input signals will be processed by the analog front-end circuit of AFE5801; the outputs of the analog front-end will then be digitalized (...)

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GUI for evaluation module (EVM)

AFE5801 EVM GUI Installer Software V0.01

SLOC150.ZIP (54810 KB)
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Calculation tool

AFE5801 and AFE5851 TGC Calculator

SLOC145.ZIP (30 KB)
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VQFN (RGC) 64 View options

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