1 Features
• 16-Channel AFE for Ultrasound Applications:
– Optimized Signal Chains for TGC and CW
Modes
– Four Programmable TGC Profiles
• Low-Noise Amplifier (LNA) With:
– Programmable Gain: 21 dB, 18 dB, and 15 dB
– Linear Input Signal Amplitude:
0.37 VPP, 0.5 VPP, and 0.71 VPP
– Active Termination
• 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, Linear-Phase, Low-Pass Filter (LPF):
– Cutoff Frequency From 10 MHz to 30 MHz
• ADC Modes (Idle-Channel SNR):
– 14-Bit, 65-MSPS Mode: 75-dBFS
– 12-Bit, 80-MSPS Mode: 72-dBFS
• Optimized for Noise and Power:
– TGC Mode: 102 mW/Ch at 0.8 nV/√Hz,
65-MSPS, 14-Bit Output
– CW Mode: 63 mW/Ch
• Excellent Device-to-Device Gain Matching:
– ±0.4 dB (Typical)
• Fast and Consistent Overload Recovery
• Continuous Wave (CW) Path With:
– Low Close-In Phase Noise of –159 dBc/Hz at
1-kHz Frequency Offset off 2.5-MHz Carrier
– Phase Resolution: λ / 16
– Supports 16x and 8x CW Clocks
– 12-dB Suppression of 3rd and 5th Harmonics
• LVDS Interface With a Speed Up to 1 Gbps
• Small Package: 15-mm × 15-mm NFBGA-289

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

3 Description
The AFE5828 device is a highly-integrated, analog
front-end (AFE) solutions specifically designed for
ultrasound systems where high performance, low
power, and small size are required.