Bridge8 Transducer Amplifier Module

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Low noise transducer amplifier in a modular system

  • Wide range of fixed gains with independent variable gain adjustment
  • Low pass filter
  • Single ended or differential transducer compatibility
  • Dual range output offset correction
  • Independent module power switch
  • Provides ± voltage excitation to transducers


See what you need to know before you buy an amplifier.


  • Chassis accepts combination of bioamplifiers and transducer amplifiers
  • Flexible channel count (1–8) allows expandability
  • Output LEDs confirm transducer output balance


  • WPI force transducers
  • Wheatstone bridge transducers
  • Muscle force measurement


Bridge8 is a modular, rack-mountable amplifier system. It is specifically designed for use as a signal conditioning amplifier with strain gages and other poered transducers. Bridge8 includes differential amplifiers featuring high input impedance, high common mode rejection and low current leakage input terminals for low noise operation. The Bridge8 also features a half bridge switch and channel offset. A wide variety of WPI transducers are available for force, temperature, pressure and light measurements. The Bridge8 amplifier is a clear choice for convenience and quality.

Any combination of ISO-DAM8 or Bridge8 modules may be combined in the same enclosure. The ISO-DAM8A module is also available in this rack configuration.

Configuring Your ISDB System

The ISDB chassis (74030) holds up to eight modules and includes a power supply. You may include any combination of BRIDGE8 Transducer Amplifier modules or ISO-DAM8A single channel modules (74020). If you choose fewer than eight modules, you need to order the ISDB blank panels (74050) to fill the empty slots in the chassis. ISO-DAM8A bioampliers include an 8-pin DIN connector with shielded, unterminated 5' cable. Please specify line voltage when ordering. When configuring your ISDB system:

  • Order a chassis and power supply enclosure (74030)
  • Select up to 8 modules (ISO-DAM8A or BRIDGE8)
  • Order blank panels (74050) to fill empty slots
  • Use with strain gauges and other power

Complete eight channel amplifier system with 74030 chassis showing eight 74020 (ISODAM8A) modules installed
*Also available for BRIDGE8 transducer amplifier modules and blank panels (74050).


*The modules are sold separately.  

Input impedance > 1012 Ω
Amplification 1, 10, 50, 100, 500, 1000 & Adjustable
Input leakage current 0.1 pA at 25°C
Voltage offset adjustment ±50 mV (low); ±100 mV (high)
Amplifier output voltage ±4.4 V (10 mA, max.)
Excitation Voltage 10 V (±5. 0V) 100 mA, max.
Equivalent noise signal input <0.4 µV RMS (2 µV p-p) 0.1-10 Hz Gain >10
<3 µV RMS (15 µV p-p) 0.1-100 Hz Gain >10
Low pass filter band (KHz) 0.03, 0.1, 0.3, 1, 5, 10, Wide Band R-C Butterworth 6 dB /octave
System enclosure dimensions  7 x 17 x 9.2 in
Shipping weight 10 to 21 lb. (4.5 to 9.5kg )
More Choices:
  1. Iso-DAM8A Active Headstage
    Iso-DAM8A Active Headstage
  2. Isolated, Low Noise Bioamplifer Chassis
    Isolated, Low Noise Bioamplifer Chassis
  3. Kit, CABLAY ISO-DAM8A, unterminated
    Kit, CABLAY ISO-DAM8A, unterminated
  4. ISDB Blank Panels
    ISDB Blank Panels
  5. Start-up Kit for TBM4M
    Start-up Kit for TBM4M
  7. Extension cable, 5 feet
    Extension cable, 5 feet
  8. Rack Mount Kit, 5 1/4-in. high
    Rack Mount Kit, 5 1/4-in. high
  9. Small FORT Force Transducers
    Small FORT Force Transducers
    Multiple SKUs
  10. Large FORT Force Transducer
    Large FORT Force Transducer
    Multiple SKUs
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