Benthowave Instrument Inc.

BENTHOWAVE INSTRUMENT INC. Acoustic Transducer & System 

Low Power Low Noise Differential Hydrophone Preamplifier

BII-1010 Series   Low Power Low Noise Differential Hydrophone Preamplifier

BII-1010s are differential output amplifiers that convert a signal resulting from piezoelectric effect to a balanced output pair. Wide output voltage swing and high output drive capability allow use in a wide variety of demanding applications. They easily drive long cables (up to 1000m). Used in combination with differential receivers or differential inputs of the DAQ, they offer a complete solution for transmitting analog signals without degradation.

Technical notes
The cable has adverse effects on the signal quality in high frequency range. The longer the cable is, the worse the adverse effects is. If you use long cable in your project, you may specify customized output impedance of BII's preamplifiers to match cable impedance and the DAQ input impedance, for example, customized 50 ohms output impedance of BII preamplifier for 50 ohms RG58 coax of DAQ system.

Suggested Application Features Related Products

Hydrophone Preamplifier
Amplitude Shading of Receiving Arrays
Passive Acoustic Monitoring
Bioacoustic Research
Sonobuoy

Drive long cable: up to 1000m Cable
Drive differential/balanced input of recording devices
Low power, low cost, small compact size
Custom-made gain and high pass filter
Built-in protection circuit

BII-7000 Omnidirectional Hydrophone
BII-7010 Low Noise Broadband Hydrophone
BII-7030 Hydrophone for Receiving Array
BII-7170 Hull Mounted Hydrophone
BII-7550 Split Beam Transducer

Specification

How to choose preamplifier? If frequency of interest covers low frequency range up to 10kHz, a preamplifier with low current noise should be used. If frequency of interest only cover high frequency range greater than 10kHz, a preamplifier with low voltage noise should be used.
Preamplifier Custom
Gain dB
Bandwidth
-3dB
Input Referred Noise at 1kHz
& Input Type
Input Impedance Output Impedance Cable Driving Capability Supply Voltage
VDC
Quiescent
Current
mA
Size LxWxH
Coated PCB
mm
BII-1011 Default:40
0 to 60
600kHz@6dB
350kHz@32dB
150kHz@40dB
12kHz@60dB
20nV/√Hz
1.0fA/√Hz
44MΩ 10Ω 20m +4.5
to
+30
1.0 33x8.9x5
BII-1012 Default:40
0 to 60
1.3MHz@6dB
900kHz@32dB
320kHz@40dB
30kHz@60dB
8nV/√Hz
0.3pA/√Hz
2MΩ 10Ω 20m +4.5
to
+30
1.2 33x8.9x5
BII-1013 Default:40
0 to 60
2MHz@26dB
1MHz@40dB
100kHz@60dB
10.0nV/√Hz
0.8fA/√Hz
44MΩ 10Ω 20m +8.5
to
+30
8.0 33x8.9x5
BII-1014 Default:40
0 to 60
2.5MHz@26dB
1.5MHz@40dB
200kHz@60dB
1.3nV/√Hz
0.8pA/√Hz
200kΩ 10Ω 50m@20kHz
20m@1.5MHz
+7.5
to
+30
21.5 33x8.9x5
BII-1016 Default:40
0 to 60
600kHz@6dB
350kHz@32dB
150kHz@40dB
12kHz@60dB
20nV/√Hz
1.0fA/√Hz
44MΩ 50Ω 1000m +7.5
to
+30
7.0 30x8.9x5
BII-1017 Default:40
0 to 60
1.3MHz@6dB
900kHz@32dB
320kHz@40dB
30kHz@60dB
8nV/√Hz
0.3pA/√Hz
2MΩ 50Ω 1000m +7.5
to
+30
7.0 30x8.9x5
BII-1018 Default:40
0 to 60
1.5MHz@32dB
800kHz@40dB
100kHz@60dB
10.0nV/√Hz
0.8fA/√Hz
44MΩ 50Ω 1000m +8.5
to
+30
10.0 33x10x5
BII-1019 Default:40
0 to 60
1.5MHz@32dB
1.2MHz@40dB
300kHz@60dB
1.3nV/√Hz
0.8pA/√Hz
200kΩ 50Ω 1000m +7.5
to
+30
16.7 33x10x5
Click BII-1050 for information on Ultrasonic Preamplifier with fixed gain.
Click BII-1060 for information on Low Power Low Noise Preamplifier with fixed gain.
Click BII-1070 for information on Low Noise Low Power Wide Bandwidth Preamplifier with fixed gain.
Click BII-1090 for information on Low Noise Differential Preamplifier with programmable gain.
 
Miscellaneous: BII-1010 Series Preamplifier
Input Wiring: Coated PCB: 3cm wires; Potted Unit: 0.15m Cables/Wires.
Maximum Input: 2.4Vpp or (Maximum Output)/Gain, whichever is less.
Input Type: Differential (either single ended or differential input signals are accepted).
Built-in Filter: High Pass Filter, Custom-made, High Pass Cut-off Frequency Range: 0.1Hz to 50kHz
Output Wiring: Coated PCB: 3cm wires; Potted Unit: 0.15m Cables/Wires.
Maximum Output: 1. Supply Voltage - 1.7 Vpp for BII-1011, BII-1012.
2. Supply Voltage - 4 Vpp for BII-1013, BII-1014, BII-1016, BII-1017, BII-1018, BII-1019.
Output Type: Differential/Balanced
Suggested DC Supply: +9VDC Battery, 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.
Operating Temperature: -40°C to 85°C
Storage Temperature: -50°C to 105°C
Weight: 3.0g (Coated PCB)
Size (Potted Unit): ΦDxL: 48x15mm
DAQ Wiring: Click DAQ Wiring for detailed wiring information to data acquisition devices.

Wiring of BII-1010 Series PCB

Differential Hydrophone Preamplifier

Hydrophone Preamplifier Driving Long Cable

Potted Preamplifier

Hydrophone Preamplifiers

Frequency Response

Differential Hydrophone Preamplifier  Differential Hydrophone Preamplifier

Differential Hydrophone Preamplifier  Differential Hydrophone Preamplifier

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