Benthowave Instrument Inc.

BENTHOWAVE INSTRUMENT INC. Acoustic Transducer & System 

Linear Power Amplifier: SONAR and HIFU Transducer

BII-5030 Series 12W Wide Power Bandwidth of 1.2 MHz

Linear SONAR Power AmplifierSuggested Application

  • Image Sonar, HIFU Transducer
  • Underwater Sound Velocimeter/Sound Velocity Probe
  • Short Range Navigation, Inspection and Survey
  • Transmitting Array Shading
  • Object Avoidance/Tracking, Distance Gage
  • Low Power Underwater Wireless Communication
  • Modem FSK, PSK and Spread Spectrum System
  • Phantom Echo Generation
  • Phantom Generation of Clicks, Whistles and Pulse Trains
  • Audiogram Studies/Audiometry/Psychoacoustics
  • AEP/ABR Experiments on Aquatic Mammals
  • Bioacoustic and Biological Research (Whales/Dolphins)
Source Level Capability: 180.0+DI (dB)
Bandwidth: 1.2 MHz, 20 dB Gain
Driving Reactive Load
Small Size Fitting in ΦD1½" (38.1mm) Cylinder Housing
Single DC Power Supply, Stand-by Low Power Mode
Manual/Computer Digital Output Control
Related Products
BII-4000 Sonar Signal Generation
BII-6000 Impedance Matching & Tuning
Underwater Transducer: SONAR, HIFU...
BII-2100 Transmitting & Receiving Switch


Linear Power Amplifier BII-5031
Application: Pulse/Burst SINE, Chirp/FM, Arbitrary Waveform
Spread Spectrum, FSK and PSK Signals
Marine Animal Sound, Whale and Dolphin's Clicks, Whistles and Pulse Trains
Continuous Waveform (≤1 minutes, Duty Cycle≤10%)
Gain: 20 dB or 10
RMS Power Capability: 6 W @ +12VDC Power Supply
12 W @ +24 VDC Power Supply
Minimum Load: 3 Ω @ +12VDC Power Supply
6 Ω @ +24 VDC Power Supply
Quiescent Current: Active: 31 mA; Stand-by (Shut-down): 4 mA
Power Bandwidth (-3 dB): -3dB Power Bandwidth = 20Hz to 12 MHz*Vpp/Output. For example:
Output 10Vpp: 20 Hz to 1.2 MHz, See Graph of SPL vs Frequency.
Output 15Vpp: 20 Hz to 0.8 MHz
Output 20Vpp: 20 Hz to 0.6 MHz
Maximum Input Level: 2 Vpp
Input Impedance: 1 kΩ
Supply Voltage: +7 to +24 VDC
Suggested DC Supply: Marine Battery, Automobile Battery, Fixed DC Linear Power Supply, Not Included.
DO NOT use variable power supply whose maximum supply voltage is higher than the above rated voltage.
DO NOT use switching mode DC power supply.
Stand-by Control: On-board ON/OFF Switch for Shut-down Control: Manually or Digitally.
Stand-by Control Voltage:
(Shut-down Control)
TTL/CMOS Compatible
Active: Logic High or +2 VDC to +5 VDC
Stand-by (Shut-down): Logic Low or 0 to 0.8 VDC
Cable:  6" wires
Connector:  Wire Leads
Mounting:  4xΦD4.87mm through-holes
Size:  Round PCB
ΦDxH=101.6x50.8 mm
Weight in Air:  180 grams 
Operating Temperature: -10°C to 85°C
Storage Temperature: -40°C to 85°C
Technical Documents: Download BII-5031 Data Sheet (round PCB).

PCB Size and Mounting Information

Power Amplifier for Sonar Transducer 

BII-5030 Series: Typical SPL (Sound Pressure Level) vs Frequency

Frequency (kHz) SPL (dB µPa*m) DUT (Device under Test)
200 208.4 to 209.9 3" Planar Transducer
300 211.9 to 213.4 3" Planar Transducer
420 211.3 to 212.8 2" Planar Transducer
600 211.9 to 213.4 1.5" Planar Transducer
1000 210.6 to 212.1 1" Planar Transducer

BII-5030 Series SONAR/HIFU Power Amplifier
SONAR/HIFU Power Amplifier

Go back to SONAR Transducer Power Amplifier.