Super-Z Ultra-High Input Impedance Head Stage
For Intra- and Extra-Cellular Microelectrode Work

- Provides An Ultra High Input Impedance Front End (>1015Ω) for the BMA-931
- Excellent For Intra- and Extra-Cellular Microelectrode Work
- Switch-Selectable Gains of x1 or x10
- Built-In, 5-Step DC Calibrator
- Switch-Selectable AC/DC Coupling
Download the Super-Z Ultra-High Input Impedance Head-Stage Data Sheet (pdf)
Note: Pricing outside the U.S. will be higher to account for shipping, taxes, duty, currency fluctuation, local warranty and technical support in your country.
| Part # | Price | Order |
| Super-Z High input impedance head-stage for the BMA-931. |
$550 |
Product Highlights
The Super-Z is an auxiliary ultra-high impedance amplifier head-stage for use with the BMA-931 bioamplifier module. FET electrometer input buffers are used to create the highest possible input impedance. That high impedance means the Super-Z can be used with any type of electrode, including tiny ion-specific microelectrodes, so it's well-suited for use in studying high-impedance cell-level signals. A stable input DC offset control allows you to null out electrode polarization potentials or other offset voltages, which can interfere with measurement accuracy. The Super-Z's switchable x1/x10 gain provides an overall range of 50 to 500,000x when used with the BMA-931. A five-step DC calibrator is standard. performance.
BMA-931 Specifications(1)
- Input type: differential, balanced to chassis common
- Input range: ±6V
- Input impedance: >1015Ω differential
- Wideband noise (referred to input): <12μV P-P
- Common mode rejection: >100dB @ 60Hz
- Gain range: 1x/10x switchable
- Input connector: pin jacks; 0.080 inches diameter
- Output range: ±6V
- Output offset (position) range: ±25, 250, 2500mV, jumper selectable
- Output connector: Amphenol, 7-pin plug
- Head-stage output cable length: 12 feet
- Calibrator voltages: 20, 50, 500, 1000μV
- Power requirements: ±12VDC @ 20mA from BMA-931
- Dimensions: 3.6W × 1H × 4D (inches)
(1) The Super-Z IS NOT to be used for human life support applications.