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FOUR CHANNEL TRANSDUCER AMPLIFIER
(Model: ETH-401)
The ETH-401 is a bridge amplifier for various transducers that provides four channels of excitation power, gain, and noise filtration: an ideal solution for interfacing low bandwidth transducers, such as those used to measure force, blood pressure, and displacement to data acquisition systems such as the IWX-118.

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Presentation

The ETH-401 is a dedicated bridge amplifier for BIOSEB transducers that provides four channels of excitation power, gain, and noise filtration. It exhibits low system noise and offset, making it suitable for use with high resolution data acquisition systems.
The ETH-401 is an ideal solution for interfacing low bandwidth transducers, such as those used to measure force, blood pressure and displacement to data acquisition systems such as the IX-118.


Operating principle

Gain control on the ETH-401 is very straightforward. A programming resistor placed in the DIN-8 connector is used to definitively set the gain. BIOSEB transducers set the ETH-401 gain to the optimal value for a given measurement. However, this does not limit the ETH-401 to use with BIOSEB transducers. Most of non-BIOSEB transducers, can be set to work with the ETH-401.

The ETH-401 is an inherently very low offset device. This, together with the low offsets characteristic of bridge-style transducers and the high resolution of the IX-118 data acquisition system dramatically minimizes the need for offset control. The ETH-401 user experience is simplified as a result.

The ETH-401 is packaged in a low profile aluminum enclosure that provides both durability and increased noise immunity. The device has a small foot print and multiple units are easily stacked to save bench space.

Key features

• 4 Differential DIN8 Connector
• Four channels of excitation power, gain, and noise filtration
• Low system noise and offset
• High resolution minimizes the need for offset control
• Very straightforward gain control
• Small foot print and multiple units are easily stacked to save bench space
• Low profile aluminum enclosure that provides both durability and increased noise immunity

Domains of application

• Interfacing low bandwidth transducers
• Amplifying signals for measurements of force, blood pressure, and displacement to data acquisition systems
• Teaching or research context for all physiology applications

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Information published on this Web Site as well as services, product specifications, availability and prices are subject to change without notice. BIOSEB may also make improvements and/or changes in the products and/or the programs described in this Web Site at any time without notice.

BIOSEB has made reasonable efforts to verify that the information in this Web site was accurate when first published. Such information may contain errors or omissions, however, and it is subject to change without notice. Bioseb does not undertake to update this information to include any such changes or to correct errors or omissions. Bioseb assumes no responsibility for any use of the information in this Web site or for any infringement of patents or other rights of third parties that may result. Certain information may be country-specific and may not apply in all countries.

Input
Number of Inputs 4 Differential DIN8 Connector
Excitation Power ± 5 Volt (±10%)
Input Impedance 10 G ohm
Input Range ± 10 Volt
CMR
Gain = 1 >80 dB (Minimum)/ >92 dB (Typical)
Gain = 10 >95 dB (Minimum)/ >110 dB (Typical)
Gain = 100 >110 dB (Minimum)/ >120 dB (Typical)
Gain = 1K >112 dB (Minimum)/ >135 dB (Typical)
Noise <10 mV (RTI)/ < 2uVolt (RTI)
Output
Number Of Outputs 4 Single Ended BNC Connector
Frequency Response 40Hz (+/- 10%) 8-Pole Low Pass Bessel Filter
Gain 1 to 10k (Set By Transducer)
Output Impedance (Maximum) < 10 W (Maximum) / < 1W (Typical)
Power Line —120/220 V AC, 60/50 Hz (Switched)

Model:
ETH-401
Four channel transducer amplifier
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Related products:
ETH-256
Two Channels Combinaison Bridge-ECG-EMG-EEG Amplifier
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Accessories :
BP-100 Intravascular blood pressure transducer
DT-475 Displacement transducer
FT-104 Force transducer
RM-200 Respiration monitoring belt
PT-100 Pulse plethysmograph
TM-100 Temperature sensor
SP-304 Spirometer
A full range of professional sensors and cables is available on request
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Bioseb - In Vivo Research Instruments
Phone worldwide : +33 442 344 360 - USA/Canada : (727) 521-1808
e-Mail : Worldwide: info@bioseb.com - USA/Canada: info-us@bioseb.com