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.