Filter Amplifier

Raw data from electrodes or from the preamplifier is amplified by the FA filter amplifier with fixed gain. Amplifiers with 4, 8, 16, 32, 48, and 64 input channels are available.

Filter Amplifier

Raw data from electrodes or from the preamplifier is amplified by the FA filter amplifier with fixed gain. Amplifiers with 4, 8, 16, 32, 48, and 64 input channels are available under the name FA4X, FA8X, FA16X, FA32X, FA48X, and FA64X, respectively, where X stands for the input type (S, I, or D).

• S: single ended inputs and amplifier ground connection
• I: single ended inputs, one common substracting input for an indifferent (reference) electrode
• D: differential inputs for each channel

Amplifiers can be ordered with any gain and bandwidth configurations by the user's choice. For example, typical pass bands would be 1-300 Hz for recording field potentials and 300-3000 Hz for recording action potentials.

It is also possible to use a broadband amplifier and filter the data with the digital filter of the free MC_Rack program.

Filter Amplifier S-Type

Single ended inputs
Raw data from electrodes or from the preamplifier is amplified by the FA filter amplifier with fixed gain. Amplifiers with 4, 8, 16, 32, 48, and 64 input channels are available under the name FA4S, FA8S, FA16S, FA32S, FA48S, and FA64S, respectively.
Amplifiers with input type S have single ended inputs and all channels are grounded. The measurement is the difference between the signal and the ground. The signal source's ground and the amplifier's ground should have the same value for obtaining good results.
Amplifiers can be ordered with any gain and bandwidth configurations by the user's choice. For example, typical pass bands would be 1-300 Hz for recording field potentials and 300-3000 Hz for recording action potentials.
It is also possible to use a broadband amplifier and filter the data with the digital filter of the free MC_Rack program.

Filter Amplifier I-Type

Substracts reference from input voltage
Raw data from electrodes or from the preamplifier is amplified by the FA filter amplifier with fixed gain. Amplifiers with 4, 8, 16, 32, 48, and 64 input channels are available under the name FA4I, FA8I, FA16I, FA32I, FA48I, and FA64I, respectively.
An amplifier with input type I includes a common ground and one reference electrode input. This allows the measurement of the voltage difference between the electrodes and one reference electrode. This feature provides a superior common-mode noise rejection. Noise that is of the same polarity and of the same magnitude is removed. The voltage difference is then amplified by the specified amplifier gain. The same reference is used for all inputs.
Amplifiers can be ordered with any gain and bandwidth configurations by the user's choice. For example, typical pass bands would be 1-300 Hz for recording field potentials and 300-3000 Hz for recording action potentials. It is also possible to use a broadband amplifier and filter the data with the digital filter of the free MC_Rack program.

Filter Amplifier D-Type

Differential inputs for all channels
Raw data from electrodes or from the preamplifier is amplified by the FA filter amplifier with fixed gain. Amplifiers with 4, 8, 16, 32, 48, and 64 input channels are available under the name FA4D, FA8D, FA16D, FA32D, FA48D, and FA64D. An amplifier with input type D has differential inputs for all channels. Up to 64 input channels and 32 output channels are available. Two input channels run from each signal source to the amplifier. One goes to a + input and one to a - input. The difference between the + and - inputs is amplified by the specified gain, meaning that any voltage (noise) common to both channels is removed.
Amplifiers can be ordered with any gain and bandwidth configurations by the user's choice. For example, typical pass bands would be 1-300 Hz for recording field potentials and 300-3000 Hz for recording action potentials.
It is also possible to use a broadband amplifier and filter the data with the digital filter of the free MC_Rack program.

for technical specifications on the miniature pre-amplifiers (MPA)view the pdf file below:

FA datasheet

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The following Accessories are available for the Filter Amps (FA).