Amplifiers/Electrometers

Bio amplifiers for life science research in electrophysiology  Amplifier Accessories
Extracellular Amplifiers

Intracellular Amplifiers
Transducers
Transducer Amplifiers

An amplifier, in simplest terms, is an electronic device that magnifies an input signal. In this case, the amplifier magnifies the small voltage changes in cells or tissues. Not all amplifiers are created equal. The way an amplifier is designed to handle the intrinsic noise of an electronic device and the bandwidth limitations of the amplifier greatly affects the quality and sustainability of the final output signal. WPI has been designing and building amplifiers since 1967. Quality components is the key to our faithful reproduction of an input signal. WPI offers intracellular amplifiers for measurements inside a single cell, extracellular amplifiers for measurement in interstitial fluid (outside a cell), transducer amplifiers for pressure, force displacement, temperature measurements and more.

The purchase of a low-noise amplifier pays dividends in the end. WPI’s amplifiers were engineered for the bio-medical researcher. While 20-30μV of noise is common in bio-amplifiers, WPI’s DAM series amplifiers generate 0.4μV RMS (root mean squared) at 0.1-100Hz. (That’s equal to about 2μV peak to peak.) The chart below compares WPI’s bio-amplifiers.

Amplifier

AC/DC

Differential

Headstage

EMG
EKG

Stimulation

Isolated

Multi-
channel

Battery
Powered

Connectors

Intracellular Bioamplifiers

FD223A

DC

 

 

 

2

 

2 mm pin

Electro 705

DC

Use two 705’s for differential measurments

 

 

 

 

2 mm pin

Duo773

DC

 

 

2

 

2 mm pin

Extracellular Bioamplifiers

ISO-DAM8A

DC

opt

 

1-8*

 

Mini Banana or 8-pin DIN

ISO-80

AC

 

Mini Banana

DAM50

AC/DC

 

 

 

 

RJ-11

DAM80

AC

 

 

Mini Banana

Transducer Amplifiers

BRIDGE8

DC

 

 

 

 

1-8*

 

8-pin DIN WPI transducers

TBM4M

DC

 

 

 

 

4

 

8-pin DIN WPI transducers

Epithelial Voltage/Current Clamp Bio Amplifier

EVC4000

DC

 

 

 

 

1-4

 

Ussing 2 mm

* 1-8 ISODAM8A or BRIDGE8 units can be combined as separate channels in a single ISDB.

More Information

Amplifier Selection Guide 

See why Low Noise Amplifiers Outperform Cheap Imitations. ()

 


If you have any questions about our amplifiers, please give us a call at (866) 606-1974 (Toll Free in the USA) or email us at wpi@wpiinc.com.