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DPA – Differential Amplifier and Filter

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Differential Amplifier and Filter

  • High- and lowpass filter with differential input
  • 10 MΩ input for direct connection of low impedance electrodes (FS and FX)
  • Adds high flexibility to multi-channel extracellular headstages
  • Combine with EXT-HS-M or EXT-MHS-M to form a multi-channel recording setup
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Technical Data - DPA-2FL

INPUT RANGE: ±12 V; protected up to ±15 V
INPUT IMPEDANCE: 100 kΩ related to ground
INPUT CAPACITANCE: 30 pF
OFFSET COMPENSATION: ±0.1 V or ±1 V, set by toggle switch and potentiometer
HIGHPASS FILTER: single pole, attenuation: -6 dB/octave, corner frequencies (Hz): DC, 0.1, 1, 100, 300, 600
LOWPASS FILTER: single pole, attenuation: -6 dB/octave, corner frequencies (Hz): 50, 100, 1.k, 3k, 5k, 8k
NOTCH FILTER: 50 Hz or 60 Hz
GAIN: rotary-switch: 10-100-1k-2.5k-5k-10k
OUTPUT: impedance 50 Ω, max ±12 V, short circuit protected
DIMENSIONS: front panel 12 HP (60.6 mm) x 3U (128,5 mm), 7″ (175 mm) deep.

Technical Data - DPA-2FS/DPA-2FX

INPUT RANGE: ±12 V; protected up to ±15 V
INPUT IMPEDANCE: 10 MΩ related to ground
INPUT CAPACITANCE: 30 pF
AC COUPLING AT INPUT: corner frequency of 0.1 Hz (if AC/0/DC-switch at BNC connector is switched to AC)
OFFSET COMPENSATION: ±0.1 V, ±1 V or ±10 V, set by toggle switch and ten-turn potentiometer
HIGHPASS FILTER DPA 2FX: single pole, attenuation: -6 dB/octave, corner frequencies (Hz): 3, 30, 100, 300, 400, 500, 600, 800, 1k, 3k, 10k
LOWPASS FILTER DPA 2FX: single pole, attenuation: -6 dB/octave, corner frequencies (Hz): 30, 100, 300, 500, 700, 900, 1.3k, 1.5k, 1.7k, 3k, 10k, 20k
HIGHPASS FILTER DPA 2FS: single pole, attenuation: -6 dB/octave, corner frequencies (Hz): OFF, 0.3, 5, 100, 300, 400, 500, 600, 800, 1k, 3k, 10k
LOWPASS FILTER DPA 2FS: single pole, attenuation: -6 dB/octave, corner frequencies (Hz): 30, 100, 300, 500, 700, 1k, 1.3k, 1.5k, 3k, 5k, 10k, 20k
GAIN: rotary-switch: 1-2-5-10-20-50-100
GAIN RANGE: selectable with toggle switch x1, x10, x100
GAIN and GAIN RANGE are multiplied giving a maximum amplification of 10000
OVERLOAD LEDS: starting to light up at ±10 V
OUTPUT: impedance 50 Ω, max ±12 V, short circuit protected
DIMENSIONS: front panel 12 HP (60.6 mm) x 3U (128,5 mm), 7″ (175 mm) deep.

Ordering

Part no. Description
DPA-2FS Low- and high pass, one pole Bessel filter module with gain, width = 1
DPA-2FX Low- and high pass, one pole Bessel filter module with gain, width = 1
DPA-2FL Low-noise, low- and high pass, one pole Bessel filter module, width = 1
DPA-N 50 Hz / 60 Hz notch filter for DPA-2FL modules

Downloads

Brochure Extracellular amplifiers
Manuals DPA 2FL manual

DPA 2FS manual

DPA 2FX manual

Technical Data - DPA-2FL

Technical Data - DPA-2FL

INPUT RANGE: ±12 V; protected up to ±15 V
INPUT IMPEDANCE: 100 kΩ related to ground
INPUT CAPACITANCE: 30 pF
OFFSET COMPENSATION: ±0.1 V or ±1 V, set by toggle switch and potentiometer
HIGHPASS FILTER: single pole, attenuation: -6 dB/octave, corner frequencies (Hz): DC, 0.1, 1, 100, 300, 600
LOWPASS FILTER: single pole, attenuation: -6 dB/octave, corner frequencies (Hz): 50, 100, 1.k, 3k, 5k, 8k
NOTCH FILTER: 50 Hz or 60 Hz
GAIN: rotary-switch: 10-100-1k-2.5k-5k-10k
OUTPUT: impedance 50 Ω, max ±12 V, short circuit protected
DIMENSIONS: front panel 12 HP (60.6 mm) x 3U (128,5 mm), 7″ (175 mm) deep.

Technical Data - DPA-2FS/DPA-2FX

Technical Data - DPA-2FS/DPA-2FX

INPUT RANGE: ±12 V; protected up to ±15 V
INPUT IMPEDANCE: 10 MΩ related to ground
INPUT CAPACITANCE: 30 pF
AC COUPLING AT INPUT: corner frequency of 0.1 Hz (if AC/0/DC-switch at BNC connector is switched to AC)
OFFSET COMPENSATION: ±0.1 V, ±1 V or ±10 V, set by toggle switch and ten-turn potentiometer
HIGHPASS FILTER DPA 2FX: single pole, attenuation: -6 dB/octave, corner frequencies (Hz): 3, 30, 100, 300, 400, 500, 600, 800, 1k, 3k, 10k
LOWPASS FILTER DPA 2FX: single pole, attenuation: -6 dB/octave, corner frequencies (Hz): 30, 100, 300, 500, 700, 900, 1.3k, 1.5k, 1.7k, 3k, 10k, 20k
HIGHPASS FILTER DPA 2FS: single pole, attenuation: -6 dB/octave, corner frequencies (Hz): OFF, 0.3, 5, 100, 300, 400, 500, 600, 800, 1k, 3k, 10k
LOWPASS FILTER DPA 2FS: single pole, attenuation: -6 dB/octave, corner frequencies (Hz): 30, 100, 300, 500, 700, 1k, 1.3k, 1.5k, 3k, 5k, 10k, 20k
GAIN: rotary-switch: 1-2-5-10-20-50-100
GAIN RANGE: selectable with toggle switch x1, x10, x100
GAIN and GAIN RANGE are multiplied giving a maximum amplification of 10000
OVERLOAD LEDS: starting to light up at ±10 V
OUTPUT: impedance 50 Ω, max ±12 V, short circuit protected
DIMENSIONS: front panel 12 HP (60.6 mm) x 3U (128,5 mm), 7″ (175 mm) deep.

Ordering

Ordering

Part no. Description
DPA-2FS Low- and high pass, one pole Bessel filter module with gain, width = 1
DPA-2FX Low- and high pass, one pole Bessel filter module with gain, width = 1
DPA-2FL Low-noise, low- and high pass, one pole Bessel filter module, width = 1
DPA-N 50 Hz / 60 Hz notch filter for DPA-2FL modules

Downloads