Specialized Tools for Electrophysiology and Cell Biology Research

(DP-314) Four Channel Differential Amplifier with Active Headstages

Product Summary

The Warner DP-314 is a four channel AC/DC amplifier with differential pre-amplifiers having active input headstages highly suited for EEG, EKG, and extracellular recording.

 

  • Low noise extracellular amplifier with high gain
  • Excellent common mode rejection: 120 dB at 60 Hz
  • High input impedance
  • High tolerance to DC offsets
  • Includes 4 active headstages

Active Headstages for Low Noise

The DP-314 employs 'active headstage technology' that performs the differential measurement within the shielded headstage. The common mode rejected signal is then sent to the main amplifier for high gain amplification. This allows the DP-314 to provide a lower noise output when compared to other instruments that send undifferentiated signals to the amplifier for remote common mode processing.

DP-314 Headstage
Four (4) headstages are included with the DP-314.

High Input inpedance, High Common Mode Rejection

High common mode rejection is very important in minimizing electrical interference. The high input resistance of the DP-314 (1012  Ω typical) ensures that the instrument's high CMR will not be degraded by differences in source impedance. This is important for extracellular recording where the difference in resistance between the recording and indifferent electrode is often very large.

High DC Tolerance

Extracellular action potentials are typically measured in microvolts but are usually accompanied by much larger DC electrode voltages. The DP-314 is designed to amplify these µV level events with as much as ±10 VDC at the input.

High Gain, Low Noise, & Bandwidth Limiting

With gain selections at x10, x100, x1000 and x10,000, even µV signals are sufficiently amplified for computer and recorder inputs. Noise is very low, typically 10 µV p-p at 1 Hz to 10 kHz bandwidth. Reducing the bandwidth with the low pass and high pass filters can further lower the noise.

Calibration Signal

An internal Cal signal provides a convenient check of amplifier gain and operation.

Voltage Gain, AC & DC x10, x100, x1,000, & x10,000
Input Resistance 1012 Ω typical
Leakage Current 1.0 pA typical
Common Mode Rejection 120 dB min
(1,000,000 :1) at 60 Hz
Noise, Input Shorted 10 µV p-p,
1 Hz to 10 kHz typical
Low Frequency Filter Settings (high pass) DC, 0.1, 1, 10, 100 & 300 Hz
High Frequency Filter Settings (low pass) 0.1, 0.5, 1, 5, 10 & 50 kHz
Offset Control Range ±600 mV min at output, any gain set
Calibration Signal 1 mV p-p at 100 Hz
Max. Common Mode Signal ±10 V
Output Voltage Swing ±10 V
Output Resistance 50 Ω
Input Connectors 2 mm male pins,
0.5" (12.7 mm) spacing
Output Connector BNC
Power Requirements 92-250 VAC, 50/60 Hz, 20 VA
Physical Size (H x W x D) 9.0 x 42.5 x 19.0 cm
Shipping Weight 5.5 kg
Warranty 1 year on electrical components
Order No. Model No. Product Description USA Price Order
64-0999 ESW-F10N E Series Electrode Holder, straight style, fits 1.0 mm capillary, Ag wire Login Login
64-1000 ESW-F12N E Series Electrode Holder, straight style, fits 1.2 mm capillary, Ag wire Login Login
64-1001 ESW-F15N E Series Electrode Holder, straight style, fits 1.5 mm capillary, Ag wire Login Login
64-1002 ESW-F20N E Series Electrode Holder, straight style, fits 2.0 mm capillary, Ag wire Login Login
64-1003 ESW-F10P E Series Electrode Holder, port, straight style, fits 1.0 mm capillary, Ag wire Login Login
64-1005 ESW-F15P E Series Electrode Holder, port, straight style, fits 1.5 mm capillary, Ag wire Login Login
64-1006 ESW-F20P E Series Electrode Holder, port, straight style, fits 2.0 mm capillary, Ag wire Login Login
64-1007 ESW-F10V E Series Electrode Holder, straight style, fits 1.0 mm capillary, Ag wire Login Login
64-1008 ESW-F12V E Series Electrode Holder, straight style, fits 1.2 mm capillary, Ag wire Login Login
64-1009 ESW-F15V E Series Electrode Holder, straight style, fits 1.5 mm capillary, Ag wire Login Login
64-1010 ESW-F20V E Series Electrode Holder, straight style, fits 2.0 mm capillary, Ag wire Login Login

Order No. Model No. Product Description USA Price Order
64-2432 DP-314 4-channel differenttial amplifier with active headstages Login Login
Wire Electrodes with 2mm jack and no port
64-0999 ESW-F10N E Series Electrode Holder, straight style, fits 1.0 mm capillary, Ag wire Login Login
64-1000 ESW-F12N E Series Electrode Holder, straight style, fits 1.2 mm capillary, Ag wire Login Login
64-1001 ESW-F15N E Series Electrode Holder, straight style, fits 1.5 mm capillary, Ag wire Login Login
99-0146 ESW-F17V E Series Electrode Holder, straight style, fits 1.7 mm capillary, Ag wire Login Login
64-1002 ESW-F20N E Series Electrode Holder, straight style, fits 2.0 mm capillary, Ag wire Login Login
Wire Electrodes with 2mm jack and port
64-1003 ESW-F10P E Series Electrode Holder, port, straight style, fits 1.0 mm capillary, Ag wire Login Login
64-1004 ESW-F12P E Series Electrode Holder, port, straight style, fits 1.2 mm capillary, Ag wire Login Login
64-1005 ESW-F15P E Series Electrode Holder, port, straight style, fits 1.5 mm capillary, Ag wire Login Login
64-1006 ESW-F20P E Series Electrode Holder, port, straight style, fits 2.0 mm capillary, Ag wire Login Login
Wire Electrodes with 2mm jack and vent
64-1007 ESW-F10V E Series Electrode Holder, straight style, fits 1.0 mm capillary, Ag wire Login Login
64-1008 ESW-F12V E Series Electrode Holder, straight style, fits 1.2 mm capillary, Ag wire Login Login
64-1009 ESW-F15V E Series Electrode Holder, straight style, fits 1.5 mm capillary, Ag wire Login Login
64-1010 ESW-F20V E Series Electrode Holder, straight style, fits 2.0 mm capillary, Ag wire Login Login
Data Acquisition
64-2325 IX-408 8 Channel data recorder with Labscribe software Login Login
64-2431 IX-416 16 channel data recorder with Labscribe software Login Login
Accessories
460-7032 BNC-2 BNC to BNC cable, 2 feet (Pomona) Login Login
460-7013 BNC-6 BNC to BNC cable, 6 feet (Pomona) Login Login
Replacement Parts
64-2433 Replacement active headstage for DP-311A and DP-314 Login Login
64-1323 PJ2-5 2.0 mm jack, uninsulated, 5 pack Login Login

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