AFE58JD48 16-Channel Ultrasound AFE with 140-mW/Channel Power, 0.8-nV/√Hz Noise, 16-Bit, 125-MSPS ADC with JESD or LVDS Interface, Digital Demodulator, and Passive CW Mixer

1 Features

• 16-Channel AFE for ultrasound applications:
  • Four programmable TGC setting profiles
• Low-noise amplifier (LNA) With Active Termination:
  • Programmable gain: 21 dB, 18 dB, and 15 dB
  • Linear input amplitude: 0.37/0.5/0.71 V_PP
  • Maximum input amplitude: 1 Vpp
• Voltage-controlled attenuator (VCAT):
  • Attenuation range: 0 dB–36 dB
• Programmable gain amplifier (PGA):
  • 18 dB–27 dB in Steps of 3 dB
• 3rd-Order, 10 ~ 60 MHz Low-pass filter (LPF)
• ADC Idle-Channel SNR:
  • 16-Bit, 125-MSPS Mode: 80-dBFS
  • 14-Bit, 80-MSPS Mode: 79-dBFS
• Excellent near field SNR: 74-dBFS
• TGC Mode JESD204B output
  • 140 mW/Ch, 0.8 nV/√Hz, 125 MSPS, 16 bit
  • 120 mW/Ch, 0.8 nV/√Hz, 80 MSPS, 16 bit
  • 115 mW/Ch, 0.8 nV/√Hz, 65 MSPS, 16 bit
  • 105 mW/Ch, 0.8 nV/√Hz, 40 MSPS, 16 bit
• TGC Mode LVDS output
  • 120 mW/Ch, 0.8 nV/√Hz, 80 MSPS, 16 bit
  • 115 mW/Ch, 0.8 nV/√Hz, 65 MSPS, 16 bit
  • 150 mW/Ch, 0.8 nV/√Hz, 125 MSPS, 16 bit, Decimation by 2, LVDS 0.5x mode
• CW Mode: 63 mW/Ch, 1.15 nV/√Hz
• ±0.4 dB (typical) Device-to-device gain matching
• Fast and consistent overload recovery
• Continuous wave (CW) path with:
  • –159 dBc/Hz Phase noise at 1-kHz off carrier
  • λ / 16 Phase resolution
  • Supports 16x and 8x CW clocks
  • 12-dB Suppression of 3rd and 5th harmonics
• Digital I/Q demodulator w/ data reduction
  • Fractional decimation filter M = 1 to 63 with increments of 0.25
  • On-chip RAM with 32 preset profiles
• LVDS Interface with a speed Up to 1.28 Gbps
• 10-Gbps JESD204B Subclass 0, 1, and 2
  • Up to 12.8-Gbps with 10-cm PCB traces
  • 2, 4, or 8 Channels per JESD lane

2 Applications

• Medical ultrasound imaging
• High frequency ultrasound imaging
• Non-destructive testing (NDT)
• Sonar, radar, LiDAR imaging equipment
• Multi-channel data acquistion

3 Description

The AFE58JD48 device is a highly-integrated, analog front-end (AFE) solutions specifically designed for premium ultrasound systems.

1. For all available packages, see the package option addendum at the end of the datasheet.