AFE5812 Fully Integrated, 8-Channel Ultrasound Analog Front End with Passive CW Mixer, and Digital I/Q Demodulator, 0.75nV/Hz, 14/12-Bit, 65 MSPS, 180mW/CH
AFE5812 Fully Integrated, 8-Channel Ultrasound Analog Front End with Passive CW Mixer, and Digital I/Q Demodulator, 0.75nV/Hz, 14/12-Bit, 65 MSPS, 180mW/CH
AFE5812 Fully Integrated, 8-Channel Ultrasound Analog Front End with Passive CW Mixer, and
Digital I/Q Demodulator, 0.75nV/Hz, 14/12-Bit, 65 MSPS, 180mW/CH
1 Features
8-Channel Complete Analog Front-End
LNA, VCAT, PGA, LPF, ADC, and CW Mixer
Programmable Gain Low-Noise Amplifier (LNA)
24, 18, 15 dB Gain
0.25, 0.5, 0.7 VPP Linear Input Range
0.63, 0.7, 0.9 nV/rtHz Input Referred Noise
Programmable Active Termination
40 dB Low Noise Voltage Controlled Attenuator (VCAT)
24/30 dB Programmable Gain Amplifier (PGA)
3rd Order Linear Phase Low-Pass Filter (LPF)
10, 15, 20, 30, 35, 50 MHz
14-bit Analog to Digital Converter w/ LVDS output
77 dBFS SNR at 65 MSPS
Noise/Power Optimizations (Without Digital Demodulator)
180 mW/CH at 0.75 nV/rtHz, 65 MSPS
109 mW/CH at 1.1 nV/rtHz, 40 MSPS
107 mW/CH at CW Mode
Excellent Device-to-Device Gain Matching
±0.5 dB(typical) and ±1.1 dB(max)
Programmable Digital I/Q Demodulator after ADC
Wide Range Demodulation Frequency
<1KHz Frequency Resolution
Decimation Filter Factor M = 1 to 32
16xM tap FIR Decimation Filter
LVDS Rate Reduction after Demodulation
On-chip RAM with 32 preset Profiles
Low Harmonic Distortion
Low Frequency Sonar Signal Processing
Fast and Consistent Overload Recovery
Passive Mixer for Continuous Wave Doppler(CWD)
Low Close-in Phase Noise –156 dBc/Hz at 1 KHz off 2.5 MHz Carrier