8-channel VGA with ADC - AFE5801

AFE5801 (ACTIVE)

8-channel VGA with ADC

Recommended alternative parts

  • AFE5851  - The device has the SAME FUNCTIONALITY as the compared device, but is not pin-for-pin equivalent and may not be parametrically equivalent.   Same functionality as AFE5801 with 16-channel and lower power.

Description

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).

Features

  • 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

View more

Parametrics Compare all products in Ultrasound

 
Number of Channels (#)
Resolution (Bits)
Input Voltage Noise (Typ) (nV/rtHz)
Power/Channel (Typ) (mW)
Gain Control Range (Typ) (dB)
Input Range (Typ) (mVpp)
Total Max Gain (Typ) (dB)
Gain Error (Typ) (dB)
HD2 Distortion (Typ) (dB)
Special Features
Overload Recovery (clock cycle)
Function
Operating Temperature Range (C)
Package Group
Estimated Package Size (WxL) (mm2)
Approx. Price (US$)
AFE5801 AFE5803 AFE5804 AFE5805 AFE5807 AFE5808 AFE5808A AFE5809 AFE5812 AFE5816 AFE5818 AFE5851 AFE58JD16 AFE58JD18
8     8     8     8     8     8     8     8     8     16     16     16     16     16    
12     12
14    
12     12     12
14    
12
14    
12
14    
12
14    
12, 14     12, 14     12
14    
12     12, 14     12, 14    
5.5     0.75     1.23     0.85     1.1     0.75     0.75     0.75     0.75     0.95     0.75     5.5     0.95     0.75    
58     158     101     122     97     149     158     158     180     75     140     39     75     140    
36     40     46     46     40     40     40     40     40     39     40     36     39     40    
2000     1000     280     250     1000     1000     1000     1000     1000     1000     1000     1000     1000     1000    
31     54     49     50     54     54     54     54     54     46     54     31     45     54    
+/-0.5     0.5     +/-0.5     +/-0.5     +/-0.5     +/-0.5     +/-0.5     +/-0.5     +/- 0.5     +/- 0.5     +/- 0.5     +/-0.5     +/- 0.5     +/- 0.5    
-75     -60     -65     -60     -60     -60     -60     -60     -60     -60     -60     -55     -60     -60    
                Digital I/Q Demodulator           Demodulation, JESD     Demodulation, JESD    
1     1     1     1     1     1     1     1     1     1     1     1     1     1    
Ultrasound Analog Front End     Ultrasound Analog Front End     Ultrasound Analog Front End     Ultrasound Analog Front End     Ultrasound Analog Front End     Ultrasound Analog Front End     Ultrasound Analog Front End     Ultrasound Analog Front End with digital demodulator     Ultrasound     Ultrasound Analog Front End     Ultrasound Analog Front End     Ultrasound Analog Front End     Ultrasound Analog Front End     Ultrasound Analog Front End    
-40 to 85     0 to 85     0 to 70     0 to 70     0 to 85     0 to 70     0 to 85     0 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85     -40 to 85    
VQFN     NFBGA     NFBGA     NFBGA     NFBGA     NFBGA     NFBGA     NFBGA     NFBGA     NFBGA     NFBGA     VQFN     NFBGA     NFBGA    
64VQFN: 9 x 9: 81 mm2     135NFBGA: 15 x 9: 135 mm2     135NFBGA: 15 x 9: 135 mm2     135NFBGA: 15 x 9: 135 mm2     135NFBGA: 15 x 9: 135 mm2     135NFBGA: 15 x 9: 135 mm2     135NFBGA: 15 x 9: 135 mm2     135NFBGA: 15 x 9: 135 mm2     135NFBGA: 15 x 9: 135 mm2     289NFBGA: 15 x 15: 225 mm2     289NFBGA: 15 x 15: 225 mm2     64VQFN: 9 x 9: 81 mm2     289NFBGA: 15 x 15: 225 mm2     289NFBGA: 15 x 15: 225 mm2    
40.00 | 1ku     52.00 | 1ku     44.70 | 1ku     44.70 | 1ku     54.00 | 1ku     58.00 | 1ku     58.00 | 1ku     87.00 | 1ku     95.00 | 1ku     120.00 | 1ku     130.00 | 1ku     72.00 | 1ku     200.00 | 1ku     215.00 | 1ku    

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