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CMOS LNA Linear Array CWDP Doppler Estimator BJT LNA Predictive ADC



BJT  LNA


Embedded transmit/receive switch
Programmable input impedance
Wide input dynamic range
Low intermodulation distortion
Unconditionally stable with a complex source impedance
PREDICTIVE ADC

Provides wall filtering prior to A/D conversion
Expected increase in flow resolution is 4 - 5 Bits over  the nominal ADC  bit count
Cost-effective solution for  using a sole beamformer  operating in both B- and Doppler  modes
Suitable to operate in duplex ultrasound
CMOS  LNA

Active cable termination
Programmable input impedance
Wide (1 Vp-p) input dynamic range
Low input-referred noise
LINEAR ARRAY CW DOPPLER

Enables RF beamforming for up to 32 Doppler channels
Unlimited channel expansion via dedicated interface
Improved  Signal-to-Noise Ratio
Electronically steered & focused  beam
User-selectable Doppler sample volume
Larger aperture
Serial control interface
I/Q component digital output
MEAN FREQUENCY ESTIMATOR

Accurate and computationally efficient algorithm
I/Q component analog input
Hybrid analog/digital computing
Outputs 22-Bits  samples of the mean Doppler shift
Incorporates stationary canceller (optional)
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