EMG amplifier ETH-401

ECGEGG4-channel

Presentation
The ETH-401 is a dedicated bridge amplifier for BIOSEB transducers that provides four channels of excitation power, gain, and noise filtration. It features very low system noise and intrinsic offset, making it suitable for use with high-resolution data acquisition systems. The ETH-401 is designed to interface low-bandwidth bridge transducers commonly used for force, blood pressure and displacement measurements.

Operating principle
Gain is set on the ETH-401 via a programming resistor mounted in the DIN-8 connector, which definitively sets channel gain. BIOSEB transducers configure the ETH-401 to their optimal gain; most non-BIOSEB bridge-style transducers can also be adapted to work with the unit. The device's inherently low offset, combined with low-offset bridge transducers and high-resolution acquisition hardware, reduces the need for offset adjustments. The ETH-401 is housed in a low-profile aluminum enclosure for improved durability and noise immunity. Multiple units can be stacked to save bench space.

Key features

• 4 differential DIN-8 connector arrangement
• Four independent channels providing excitation, gain and noise filtration
• Very low system noise and intrinsic offset
• High resolution with reduced need for offset control
• Simple gain programming via resistor in DIN-8 connector
• Compact footprint; units are stackable
• Low-profile aluminum enclosure for durability and improved noise immunity

Domains of application

• Interfacing low-bandwidth bridge transducers
• Amplifying signals for measurements of force, blood pressure and displacement
• Teaching and research applications in physiology and biomedical measurement

Technical characteristics / specifications

• Reference: ETH-401
• Function: Bridge amplifier for transducers
• Number of channels: 4 independent channels
• Connectors: Differential DIN-8 (4 differential DIN-8 connector arrangement)
• Gain control: Programming resistor in DIN-8 connector to set gain
• Noise / offset: Very low system noise and low intrinsic offset
• Compatibility: Designed for BIOSEB transducers; compatible with most bridge-style non-BIOSEB transducers
• Recommended interface: Suitable to interface with high-resolution data acquisition systems (example: IX-118)
• Enclosure: Low-profile aluminum enclosure for noise immunity and durability
• Mechanical: Small footprint; units stackable to save bench space
• Typical applications: Force, blood pressure, displacement measurements
• Product weight (meta): 0.000000 kg (as indicated in product metadata)