AFE5832LPZAV

The AFE5832LPZAV is a highly integrated analog front-end (AFE) solution specially designed for portable ultrasound systems, offering exceptional performance, low power consumption, and a compact form factor. Its multichip module (MCM) design consists of a VCA die with 32 channels and an ADC die with 16 channels, ensuring seamless integration and high-quality conversion. The VCA channels can be configured in time-gain-compensation (TGC) mode or continuous wave (CW) mode, providing flexibility for various ultrasound applications. The ADC supports configurable resolutions of 12 bits or 10 bits and achieves maximum speeds of 80 MSPS and 100 MSPS at 12-bit and 10-bit resolution, respectively, addressing diverse system needs. The low-voltage differential signaling (LVDS) output interface enables easy integration with low-cost field-programmable gate arrays (FPGAs), enhancing overall system performance. Packaged in a 15 mm × 15 mm 289-pin NFBGA package, the AFE5832LPZAV offers a very low-power solution suitable for applications with strict battery-life requirements, making it an ideal choice for modern portable ultrasound systems

Key Features

• 32-Channel AFE for Ultrasound Applications:
  • LNA, Attenuator, LPF, ADC, and CW Mixer
  • Digital Time Gain Compensation (DTGC)
  • Total Gain Range: 0 dB to 48 dB
• Low-Noise Amplifier (LNA) With Programmable Gain:
  • Low Current Noise of 1pA/rtHz
  • Gain: 21 dB, 18 dB, and 15 dB
  • Linear Input Range: up to 700 mV_PP
• Programmable Attenuator (ATTEN):
  • Attenuation Range (Steps of 0.125 dB):
    0 to 36 dB
  • Digital TGC Engine
• Programmable Gain Amplifier (PGA):
  • Gain: 21 dB, 24 dB, and 27 dB
• Third-Order, Linear-Phase, Low-Pass Filter (LPF):
  • Cut-off Frequency From 10 MHz to 25 MHz
• 16 ADCs Converting at 12-Bit, 80 MSPS or 10-Bit, 100 MSPS:
  • Each ADC Converts Two Sets of Inputs at Half Rate
  • 12-Bit Mode: 72-dBFS SNR
  • 10-Bit Mode: 61-dBFS SNR
• TGC Mode Power :
  • Lowest Power of 18.5 mW/Ch in Low Power Mode, 4 nV/rtHz, 10-Bit, 20 MSPS, LVDS (2x rate)
  • 27.8 mW/Ch at 3 nV/rtHz in Low Noise Mode at 12-Bit, 40 MSPS
  • 24.4 mW/Ch at 4 nV/rtHz in Low Power Mode at 12-Bit, 40 MSPS
• Excellent Device-to-Device Gain Matching:
  • ±0.5 dB (Typical)
• Harmonic Distortion: –55 dBc level
• Fast and Consistent Overload Recovery
• Continuous Wave (CW) Path With:
  • Low Close-In Phase Noise of –148 dBc/Hz at 1-kHz Frequency Offset off 5-MHz Carrier
  • Power Consumption With No Signal: 10 mW/Ch
  • Phase Resolution: λ/16
  • 12-dB Suppression on Third and Fifth Harmonics
• LVDS Interface with a Speed Up to 1-Gbps
• Small Package: 15-mm × 15-mm NFBGA-289