Specialized Tools for Electrophysiology and Cell Biology Research
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DP-311A - Differential Amplifier with Active Headstage
Product Summary
The DP-311A AC/DC Differential Amplifier is highly suited for EEG, EKG and extracellular recording using glass or metal microelectrodes.
- Excellent common mode rejection: 120 dB at 60 Hz
- Small active headstage which can be mounted in micromanipulators
- Suitable for use with high impedance glass or metal microelectrodes
The DP-311A AC/DC Differential Amplifier is highly suited for EEG, EKG and extracellular recording using glass or metal microelectrodes. Features include high input impedance, high common mode rejection [120 dB @ 60 Hz], low noise, high gain, high DC tolerance, bandwidth filtering and an active headstage.
High Input Z, High CMR
High common mode rejection is very important in minimizing electrical interference. The high input resistance of the DP-311A Series (1012 typical) ensures that the instrument's high CMR will not be degraded by differences in source impedance at the input. This is important in extracellular recording, where the difference in resistance of the recording and indifferent electrode is often large.
High DC Tolerance
Extracellular action potentials are typically measured in microvolts but are usually accompanied by much larger DC electrode voltages. The DP-311A is designed to amplify these microvolt level events with as much as ±2 Volts DC at the input.
High Gain, Low Noise & Bandwidth Limiting
With gain selections at x10, x100, x1000 and x10,000, even microvolt signals are sufficiently amplified for computer and recorder inputs. Noise is very low, typically 8 µV p-p at 1 Hz to 10 kHz bandwidth. Reducing the bandwidth with the low pass and high pass filters further lowers noise.
Calibration Signal
An internal Cal signal provides a convenient check of amplifier gain and operation.
The headstage can be connected to the E Series electrode holders with a 2 mm jack and straight body.
DP-311A Headstage (included)
| 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 | 8 µV p-p, 1 Hz to 10 kHz typical |
| Low Frequency Filter Settings (high pass) | DC, 0.1, 1.0, 10 & 300 Hz |
| High Frequency Filter Settings (low pass) | 0.1, 0.3, 1.0, 3.0, 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 | ±2 V |
| Output Voltage Swing | ±10 V (±5 Volts in gain of 10) |
| Output Resistance | 50 Ω |
| Input Connectors | 2 mm male pins, 0.5" (12.7 mm) spacing |
| Output Connector | BNC |
| Power Requirements | 90 to 270 VAC, 50/60 Hz, 10 VA |
| Physical Size, H x W x D | 5.1 x 21.25 x 18 cm |
| Shipping Weight | 2.3 kg |
| Warranty | Two years, parts and labor |
| 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 |
| 64-1004 | 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 |
| 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 |
References
- Loss of Astrocytic Domain Organization in the Epileptic Brain
Loss of Astrocytic Domain Organization in the Epileptic Brain
J Neurosci. 2008 Mar 26;28(13):3264-76
Customers from Europe and Australia can use the Multi Channel Systems - Online Shop to order Warner products or create quotes.
| Order No. | Model No. | Product Description | USA Price | Order |
|---|---|---|---|---|
| 64-1432 | DP-311A | Single Channel Differential Amplifier | Login | Login |
| Wire Electrodes with 2mm jack and no port | ||||
| 64-1002 | ESW-F20N | E Series Electrode Holder, straight style, fits 2.0 mm capillary, Ag wire | Login | Login |
| 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 | |
| 64-1423 | Replacement headstage for legacy DP-311 | Login | Login | |
| 64-1323 | PJ2-5 | 2.0 mm jack, uninsulated, 5 pack | Login | Login |