TBA

 

Description :

TBA is a two channel portable amplifier intended to biological signals. Specific applications include ERG, EMG, extracellular action potentials, etc.

Inputs consists in twisted-pair cable with third active electrode, while the output connector is selected depending on the user requirements.

Differential inputs are amplified from 1,000 to 100,000 in both DC and AC modes. High Pass, Low Pass an Notch Filters offer a wide frequency selectivity filtering. Its small sized makes it adaptable for any setup environment.

Electrical Characteristics :           

Power Supply

One battery, 12V Rechargeable Lead Acid

Power Consumption

450mW (at 12V)

Amplification :

Gain

1000 to 100000

Amplification Settings

6-position step switch. Settings  x1 x5 x10 x20 x50 x100.

Filters :

Low Pass Filter

6-pole (-60dB/decade): 100, 500, 1k, 5k and 20kHz

High Pass Filter

2-pole (-40dB/decade): 0.1, 1, 10, 100, 300Hz

Line Filter

Notch filter (Off/50/60 Hz), switch selectable

Input  Characteristics : 

Input Type

Two separated three electrodes differential inputs

Input Impedance

1012 W

CMRR (Common-Mode Reject Ratio)

³ 100 dB

Input Coupling

AC or DC, switch selectable

Maximum Input Signal

9 mVpp

Input terminals

Multipole Conector

Output Characteristics :

Type

Single-ended, on separated output per stage

Terminals

BNC front and DB9 or National Instruments high density connector rear 

 Physical Size :

Dimensions

6.5’’ W x  2.5 H x  9.25’’ L(165 mm W x 60 mm H x 235 mm L)

Weight

< 4.4 Pd (2Kg.)

 

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