1 Features

• 16-Channel, Complete Analog Front-End (AFE):
  • LNA, VCAT, PGA, LPF, ADC, and CW Mixer
• LNA with Programmable Gain:
  • Gain: 24 dB, 18 dB, and 12 dB
  • Linear Input Range:
    0.25 V_PP, 0.5 V_PP, and 1 V_PP
  • Input-Referred Noise:
    0.63 nV/√Hz, 0.7 nV/√Hz, and 0.9 nV/√Hz
  • Programmable Active Termination
• Voltage-Controlled Attenuator (VCAT): 40 dB
• Programmable Gain Amplifier (PGA):
  24 dB and 30 dB
• Total Signal Chain Gain: 54 dB (max)
• 3rd-Order, Linear-Phase LPF:
  • 10 MHz, 15 MHz, 20 MHz, 30 MHz, 35 MHz, and 50 MHz
• Analog-to-Digital Converter (ADC):
  • 14-Bit ADC: 75-dBFS SNR at 65 MSPS
  • 12-Bit ADC: 72-dBFS SNR at 80 MSPS
• LVDS Interface Maximum Speed of 1 Gbps
• Noise and Power Optimizations (Full-Channel):
  • 140 mW/Ch at 0.75 nV/√Hz, 65 MSPS
  • 91.5 mW/Ch at 1.1 nV/√Hz, 40 MSPS
  • 80 mW/Ch at CW Mode
• Excellent Device-to-Device Gain Matching:
  • ±0.5 dB (typical) and ±1.1 dB (max)
• Low Harmonic Distortion
• Fast and Consistent Overload Recovery
• Passive Mixer for CWD:
  • Low Close-In Phase Noise:
    –156 dBc/Hz at 1 kHz Off 2.5-MHz Carrier
  • Phase Resolution: λ / 16
  • Supports 16X, 8X, 4X, and 1X CW Clocks
  • CWD High-Pass Filter Rejects Undesired Low-Frequency Signals < 1 kHz
• Digital Features:
  • Digital I/Q Demodulator after ADC:
    • Fractional Decimation Filter M = 1 to 63 with 0.25X Increment Step
    • Data Throughput Reduction After Decimation
    • On-Chip RAM with 32 Preset Profiles
• 5-Gbps JESD Interface:
  • JESD204B Subclass 0, 1, and 2
  • 2, 4, or 8 Channels per JESD Lane
• Small Package: 15-mm × 15-mm NFBGA-289

2 Applications

• Medical Ultrasound Imaging
• Nondestructive Evaluation Equipment
• Sonar Imaging Equipment

3 Description

The AFE58JD18 is a highly-integrated, analog front-end (AFE) solutions specifically designed for ultrasound systems where high performance and small size are required.

To request a full datasheet or other design resources: request AFE58JD18

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

Simplified Block Diagram