Amplifiers

Warner IE-210 Intracellular Electrometer

A high impedance microelectrode amplifier for intracellular studies.

• High impedance headstage (5 x 10¹¹ ohm // 0.5 pF)
• Driven shield to reduce input capacitance
• Offset control and capacity compensation
• Simultaneous current injection up to ±1 µA
• Internal 4-pole Bessel filter

Warner IE-251A Intracellular Electrometer

An economical intracellular electrometer with many of the features of the IS-201 above.

• High impedance headstage (1 x 10¹¹ ohm // 0.5 pF)
• Fixed gains of x1 and x10
• Offset control and capacity compensation
• Probe test port
• Simultaneous current injection

Warner DP-301 AC/DC Amplifier

AC/DC Differential amplifiers suitable for extracellular recording.

• Gains of x100, x1000 and x 10000, in AC and DC modes
• High common mode rejection (CMRR) and low noise
• Single-channel model (DP-301) is battery operated for use within cage
• Four-channel model (DP-304) is rackmountable

A-M Systems Neuroprobe Amplifier

The Neuroprobe (Model 1600) is a high-impedance microelectrode amplifier suitable for intracellular work.

• High impedance headstage (1 x 10¹⁴ ohm)
• Simultaneous current injection
• Offset control and capacity compensation
• Fixed gains of x1 and x10

A-M Systems 3100 Intracellular Electrometer

An easy-to-use economical electrometer suitable for intracellular work.

• High impedance headstage (1 x 10¹³ ohm)
• Simultaneous current injection
• Offset control and capacity compensation
• Fixed gains of x1 and x10

A-M Systems 3000 AC/DC Differential Amplifier

An high-impedance low-noise amplifier with both AC and DC modes, suitable for extracellular recording with both glass and metal microelectrodes.

• Gains of x50 to x10000
• Stimulus mode allows monitoring stimulus current
• Offset control and capacity compensation
• High- and low-pass filtering and notch filter
• Optional high impedance headstage

A-M Systems Microelectrode AC Amplifier

A two-channel AC differential amplifier (Model 1800) for extracellular recording and/or stimulating.

• Designed for use with high-impedance metal microelectrodes
• High impedance headstage design (1 x 10¹⁴ ohm) for low noise
• AC gains of x100, x1000 and x 10000
• Stimulus mode switches stimulus to electrode while monitoring current
• Capacity compensation & notch filter

A-M Systems 4-channel AC Amplifier

The 4-channel Model 1700 Amplifier is designed for research or teaching applications using extracellular recording from excitable tissue.

A-M Systems 16-channel AC Amplifiers

The new 16-channel Model 3500 & 3600 Amplifiers are modern multi-channel AC amplifiers with touch-screen controls and include Windows software for amplifier control via a USB port.

• Model 3500 - without headstage, for electrodes < 1 Mohm
• Model 3600 - with choice of record-only or record-stimulate headstage, for electrodes > 1 Mohm
• AC gains of x10 to x20,000
• Selectable low and high cutoffs, plus notch filter
• Low noise, low bias current
• Built-in calibrator signal