Differential Amplifier Filter DPA-2FS npi electronic GmbH
The DPA-2FS is an amplifier/filter module designed for precise processing of bio-electric signals. It offers great flexibility thanks to its selectable high-pass and low-pass filters, adjustable gain up to 10,000 and fine offset control via a ten-turn potentiometer. Equipped with a high-impedance differential input and built-in protections, it guarantees optimum signal quality. Compact and robust, it is ideally suited to modular signal processing systems.
Features of the Differential Amplifier Filter DPA-2FS npi electronic GmbH
- Input range: ± 12 V (protected up to ± 15 V)
- Differential input, input impedance: 10 MΩ, capacitance: 30 pF
- AC/DC coupling with 0.1 Hz cut-off frequency
- Offset compensation: ± 0.1 V / ± 1 V / ± 10 V (10-turn potentiometer)
- High-pass filters: 0.3 Hz to 10 kHz, single-pole, -6 dB/octave, including OFF position
- Low-pass filters: 30 Hz to 20 kHz, single-pole, -6 dB/octave
- Gain: x1 to x100 (rotary), ranges x1, x10, x100 → max. amplification 10,000
- Overload LEDs: activation at ± 10 V
- Output: 50 Ω impedance, max. ± 12 V, short-circuit protected
- Power supply: via modular rack