Amplifiers for Healthcare Applications (continued)
BEAMFORMER
CENTRAL CONTROL
PROCESSOR
HV
AMP
DAC
ISOLATION
ADI INTEGRATED SOLUTION
LNA-VGA-ADC ARRAY (UP TO 256 CHANNELS)
AAF
HV MUX AND
T/R SWITCHES
T/R
SWITCHER
ADC
LNA
VGA
DIGITAL Rx
BEAMFORMER
CLOCKS
TRANSDUCER
ARRAY
AMP
ADC
ADC
IMAGE AND
MOTION
PROCESSING PROCESSING
(B MODE) (F MODE)
COLOR
DOPPLER
DVR
CW
I/Q
PROCESSING
DOPPLER
PROCESSING
VIDEO
COMPRESSION
AMP
AMP/
FILTER
VIDEO DAC/
VIDEO ENCODER
AUDIO
DAC
AMP
Ultrasound functional diagram.
Application
Recommended Amplifiers
Key Amplifier Characteristics
Dual channel, low noise
High speed: AD810, AD812, AD813, AD815, AD817, AD825, AD826, AD818, AD827,
AD828, AD829, AD847, AD4898-1, AD4898-2, OP467
Ultrasound
High voltage, wide bandwidth
Low noise, high speed
High speed: ADA4841-1, ADA4898-1, ADA4899-1, AD8012, AD8021, AD8022, AD8099
Precision: AD8603, AD8607, AD8609, AD8610, AD8620, AD8663,
Transimpedance amp
Low input bias current
AD8667, AD8669, AD8622, AD549 , ADA4051, ADA4627, ADA4610
Precision: AD8605, AD8606, AD8608, AD8661, AD8662,
AD8664, ADA4075-2
DAC buffer
High bandwidth, high output drive
High speed, FET input
Instrumentation/blood
analysis using flow
cytometry
High speed: AD8033, AD8034, AD8065, AD8066, AD8067, AD8610,
AD8615, AD8618, AD8620, ADA4817-1, ADA4817-2
Photodiode pre-amp
High speed: AD8022, AD8029, AD8041, AD812, AD818,
ADA4851-1, ADA4851-2
Wide bandwidth, low noise, rail-to-rail, low power
Low noise, low offset, high slew rate
High speed: ADA4941-1, ADA4932-1, ADA4932-2, ADA4940-1,
ADA4940-2, ADA4950-1, ADA4950-2, AD8138, AD8137
ADC driver
Precision: AD8500, ADA4051-1, ADA4051-2, AD8603, AD8607,
AD8609, AD8508, AD8541, AD8538, AD8539, AD8642, ADA4505,
AD8655, AD8656, ADA4505-4
Band-pass filter
Low noise, low power, wide bandwidth
HRM (heart rate
monitoring devices)/
blood pressure monitor
Precision: AD8691, AD8692, AD8694, AD8665, ADA4665-2,
AD8668, ADA4075-2
Audio amp
ADC driver
Low noise, high output drive
High speed: ADA4941, ADA4940
Low noise, low offset, high slew rate
For more information in healthcare applications, visit healthcare.analog.com.
Operational Amplifier Selection Guide
50
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ADI [ ADI ]
