AFE5807 (ACTIVE)

8-channel Analog Front End with Passive CW Mixer for Ultrasound

 

Recommended alternative parts

  • AFE5808  - The device has the SAME FUNCTIONALITY and PINOUT as the compared device but is NOT an exact equivalent.   Same functionality and pinout to AFE5807 with lower noise at 0.75 nV/rtHz and ADC with 77 dBFS SNR.

Description

The AFE5807 is an integrated Analog Front-End (AFE) solution specifically designed for ultrasound systems in which high performance and small size are required. The AFE5807 integrates a complete time-gain-control (TGC) imaging path and a continuous wave Doppler (CWD) path. It also enables users to select one of various power/noise combinations to optimize system performance. Therefore, the AFE5807 is a suitable ultrasound analog front end solution not only for high-end systems, but also for portable systems.

The AFE5807 contains eight channels of voltage controlled amplifier (VCA), 12-bit Analog-to-Digital Converter (ADC), and CW mixer. The VCA includes Low noise Amplifier (LNA), Voltage controlled Attenuator(VCAT), Programmable Gain Amplifier (PGA), and Low-Pass Filter (LPF). The LNA gain is programmable to support 250 mVPP to 1 VPP input signals. Programmable active termination is also supported by the LNA. The ultra-low noise VCAT provides an attenuation control range of 40 dB and improves overall low gain SNR which benefits harmonic imaging and near field imaging. The PGA provides gain options of 24 dB and 30 dB. Before the ADC, a LPF can be configured as 10 MHz, 15 MHz, 20 MHz or 30 MHz to support ultrasound applications with different frequencies. The high-performance 12 bit/80 MSPS ADC in the AFE5807 achieves 70 dBFS SNR. It ensures excellent SNR at low chain gain. The ADC’s LVDS outputs enable flexible system integration desired for miniaturized systems. The AFE5807 also integrates a low power passive mixer and a low noise summing amplifier to accomplish on-chip CWD beamformer. 16 selectable phase-delays can be applied to each analog input signal. Meanwhile a unique 3rd and 5th order harmonic suppression filter is implemented to enhance CW sensitivity.

The AFE5807 is available in a 15mm × 9mm, 135-pin BGA package and it is specified for operation from 0°C to 85°C. It is also pin-to-pin compatible to the AFE5808, AFE5803, and AFE5808A. In addtion, AFE5809 is another member with enhanced digital demodulation features in this family.

Features

  • 8-Channel Complete Analog Front-End
    • LNA, VCAT, PGA, LPF,
      ADC, and CW Mixer
  • Programmable Gain Low-Noise Amplifier (LNA)
    • 24/18/12 dBGain
    • 0.25/0.5/1 VPP Linear Input Range
    • 0.63/0.7/0.9 nV/rtHz IRN (Low Noise Mode)
    • 0.99/1.0/1.05 nV/rtHz IRN (Low Power Mode)
    • Programmable Active Termination
  • 40 dB Low Noise Voltage Controlled Attenuator (VCAT)
  • 24/30 dB Programmable Gain Amplifier (PGA)
  • 3rd Order Linear Phase Low-Pass Filter (LPF)
    • 10, 15, 20, 30 MHz
  • 12-bit Analog to Digital Converter (ADC)
    • 70 dBFS SNR at 80 MSPS
    • LVDS Outputs
  • Noise/Power Optimizations (Full Chain)
    • 117 mW/CH at 1.05 nV/rtHz, 80 MSPS
    • 159 mW/CH at 0.75 nV/rtHz, 80 MSPS
    • 80 mW/CH at CW Mode
  • Excellent Device-to-Device Gain Matching
    • ±0.5 dB(typical) and ±1 dB(max)
  • Low Harmonic Distortion
  • Fast and Consistent Overload Recovery
  • Passive Mixer for Continuous Wave Doppler(CWD)
    • Low Close-in Phase Noise –156 dBc/Hz
      at 1 KHz off 2.5 MHz Carrier
    • Phase Resolution of 1/16&lamba;
    • Support 16X, 8X, 4X and 1X CW Clocks
    • 12dB Suppression on 3rd and 5th Harmonics
    • Flexible Input Clocks
  • Small Package: 15 mm × 9 mm, 135-BGA
  • APPLICATIONS
    • Medical Ultrasound Imaging
    • Nondestructive Evaluation Equipments

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Parametrics Compare all products in Ultrasound

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

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