Extracellular Differential Amplifiers

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Thank you for your interest in Extracellular Differential Amplifiers. Please complete and submit the form below and an ADInstruments representative will aim to get in touch within one working day. If you’d like to speak to someone immediately, office contact information is available from the contact page.

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Extracellular Differential Amplifiers

DP-301/IC-2S, DP-301/IC-4M, DP-304A/IC-2S, DP-304A/IC-4M

Configurations


Four Channel Differential Amp (2mm pin & Alligator clip)

DP-304A/IC-4M

A low noise, high input impedance, four channel AC/DC differential pre-amplifier ideally suited for extracellular recordings. It has a voltage gain of x10, x100, x1000 and x10,000 and a CMR of 120 dB min at 60 Hz​. Four IC-4M Input Cable Set for DP-301/304 (2mm Pin/Alligator Clip, 2pk) are supplied.


Four Channel Differential Amplifier (Unterminated)

DP-304A/IC-2S

A low noise, high input impedance, four channel AC/DC differential pre-amplifier ideally suited for extracellular recordings. It has a voltage gain of x10, x100, x1000 and x10,000 and a CMR of 120 dB min at 60 Hz. Four standard IC-2S Input Cable Set for DP-301/304A (Unterminated, 2 pk) are supplied.


One Channel Differential Amp (2mm pin & Alligator clip)

DP-301/IC-4M

A low noise, high input impedance, one channel AC/DC differential pre-amplifier ideally suited for extracellular recordings. It has a voltage gain of x100, x1000 and x10,000 and a CMR of 100 dB min at 60 Hz. An IC-4M Input Cable Set for DP-301/304 (2mm Pin/Alligator Clip, 2pk) is supplied.


One Channel Differential Amplifier (Unterminated)

DP-301/IC-2S

A low noise, high input impedance, one channel AC/DC differential pre-amplifier ideally suited for extracellular recordings. It has a voltage gain of x100, x1000 and x10,000 and a CMR of 100 dB min at 60 Hz. A standard IC-2S Input Cable Set for DP-301/304A (Unterminated, 2 pk) is supplied.


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Extracellular Differential Amplifiers

PRICE ON REQUEST

Low noise, high input impedance, AC/DC differential pre-amplifiers, which ideally suited for extracellular recordings and available in one or four channels.

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Overview

These are AC/DC pre-amplifiers designed for amplifying weak signals such as extracellular action potentials, and weaker EEG and ECG signals. They are available as a single or four channel pre-amplifier, and their features include:

  • high common mode rejection, CMR – to minimize electrical interference
  • high input impedance, Z –  (typically 1012 Ω) ensures that the amplifier's high CMR will not be degraded by differences in source impedance at the input
  • high DC tolerance –  allows the pre-amplifier to amplify much smaller extracellular action potentials (i.e. in microvolts) in the presence of larger DC electrode voltages (in volts)
  • high gain with low noise – to allow sufficient amplification options while limiting noise
  • an internal calibration signal – provides a convenient check of amplifier gain and operation
  • rack mount hardware – provides rack mountable option
  • two options of input cables – Unterminated or 2 mm pin and Alligator clip, which are selected at the time of purchase

Amplified signals can be recorded and analysed using a PowerLab and LabChart data acquisition system. Additionally, the single channel pre-amplifier is battery powered (4 standard 9 V transistor batteries, ~500 hours of normal operation) and its small size provides portability and easy placement at measurement site or inside a Faraday cage.

Configurations


Four Channel Differential Amp (2mm pin & Alligator clip)

DP-304A/IC-4M

A low noise, high input impedance, four channel AC/DC differential pre-amplifier ideally suited for extracellular recordings. It has a voltage gain of x10, x100, x1000 and x10,000 and a CMR of 120 dB min at 60 Hz​. Four IC-4M Input Cable Set for DP-301/304 (2mm Pin/Alligator Clip, 2pk) are supplied.

Four Channel Differential Amplifier (Unterminated)

DP-304A/IC-2S

A low noise, high input impedance, four channel AC/DC differential pre-amplifier ideally suited for extracellular recordings. It has a voltage gain of x10, x100, x1000 and x10,000 and a CMR of 120 dB min at 60 Hz. Four standard IC-2S Input Cable Set for DP-301/304A (Unterminated, 2 pk) are supplied.

One Channel Differential Amp (2mm pin & Alligator clip)

DP-301/IC-4M

A low noise, high input impedance, one channel AC/DC differential pre-amplifier ideally suited for extracellular recordings. It has a voltage gain of x100, x1000 and x10,000 and a CMR of 100 dB min at 60 Hz. An IC-4M Input Cable Set for DP-301/304 (2mm Pin/Alligator Clip, 2pk) is supplied.

One Channel Differential Amplifier (Unterminated)

DP-301/IC-2S

A low noise, high input impedance, one channel AC/DC differential pre-amplifier ideally suited for extracellular recordings. It has a voltage gain of x100, x1000 and x10,000 and a CMR of 100 dB min at 60 Hz. A standard IC-2S Input Cable Set for DP-301/304A (Unterminated, 2 pk) is supplied.

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Four Channel Differential Amp (2mm pin & Alligator clip)

Four Channel Differential Amp (2mm pin & Alligator clip)

DP-304A/IC-4M

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Four Channel Differential Amplifier (Unterminated)

Four Channel Differential Amplifier (Unterminated)

DP-304A/IC-2S

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One Channel Differential Amp (2mm pin & Alligator clip)

One Channel Differential Amp (2mm pin & Alligator clip)

DP-301/IC-4M

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One Channel Differential Amplifier (Unterminated)

One Channel Differential Amplifier (Unterminated)

DP-301/IC-2S

Related

Research Applications

Details

Product Codes


DP-304A/IC-4M
Four Channel Differential Amp (2mm pin & Alligator clip)
DP-304A/IC-2S
Four Channel Differential Amplifier (Unterminated)
DP-301/IC-4M
One Channel Differential Amp (2mm pin & Alligator clip)
DP-301/IC-2S
One Channel Differential Amplifier (Unterminated)

Technical


Ordering information:

  • Input Cables: For each channel, the differential pre-amplifiers can be ordered with either the standard IC-2S Input Cable Set (Unterminated, 2 pack) or IC-4M Input Cable Set (2 mm Pin/Alligator Clip, 2 pack), at no additional cost if specified at time of order. If unspecified, the pre-amplifiers will ship with IC-2S Input Cable Set (Unterminated, 2 pack), which are not terminated at the outboard end.

Summary:

  DP-301 DP-304A
Voltage Gain, AC/DC x100, x1000 and x10000 x10, x100, x1000 and x10000
Input Resistance, Z (typical) 1012 Ω
Leakage Current (typical) 50 pA 1.0 pA
Common Mode Rejection, CMR 100 dB min (1,000,000:1) at 60 Hz 120 dB min (1,000,000:1) at 60 Hz
Noise, input shorted 10 µV p-p, 1 Hz to 10 kHz 8 µV p-p, 1 Hz to 10 kHz
Low Frequency Filter Settings (high pass) 0.1, 1.0, 10 and 300 Hz
High Frequency Filter Settings (low pass) 0.1, 1.0, 3.0 and 10 kHz 0.1, 0.3, 1.0, 3.0, 10, 50 kHz
Offset Control Range - ±600 mV min at output, any gain setting
Calibration Signal 1 mV p-p at 10 Hz
Max. Common Mode Signal ±3 V ±2 V
Output Voltage Swing ±10 V ±10 V, ±5 V at x10 gain
Output Resistance 220 Ω 50 Ω
Input and Output Connectors BNC
Power Requirements 4 x 9 V alkaline batteries 92 - 250 VAC, 50/60 Hz, 20 VA
Physical Size (H x W x D) 8.8 x 20 x 17.5 cm 9.0 x 42.5 x 19.0 cm
Shipping Weight 2.3 kg 4.55 kg
Warranty Two years, parts and labor (excluding batteries) One year on electrical components