Model 1700 Differential AC Amplifier

Price: $2,980.00 
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Ideal for multiple-unit recordings, evoked potentials,
EEG/EMG/EKG/ERG recordings, long-term potentiation and more.

A-M Systems Model 1700

Low Noise

1 µV p-p
Driven Shield Capability

Easy to Use

Analog Controls
Record or Stimulate Modes


Optional Headstages
Customizeable Gain and Controls

The Model 1700 Differential AC Amplifier is perfect for excitable tissue recordings, whether in a reseach laboratory or teaching environment.

Common applications include, but are not limited to:

Multiple-Unit Recordings

Evoked Potentials

EEG/EMG/EKG/ERG recordings

Long-term Potentiation

The Model 1700 Differential AC Amplifier contains 4 independent amplifier channels in a single enclosure enabling the researcher to record multiple signals simultaneously. Each channel contains a high-gain, low-noise differential stage followed by low-pass, high pass, and notch filters. A connection is also provided for a stimulator input so that recording or stimulating through the same electrode is possible without having to change cabling.

Standard gain settings are x100, x1000 or x10,000, but they can be modified to meet your specific requirements. High and Low Pass filters are 2nd order Butterworth filters, and like the gain, the standard settings can be modified to meet your needs if required.

The Model 1700 Differential AC Amplifier is designed for use with low impedance (<1.5 MΩ) electrodes, and is therefore suitable for use with suction, nerve cuff, hook, surface, and simple metal electrodes. Optional record only headstages are available for situations where you would like to record from electrodes with higher impedances such as those used when recording neural spike action potentials.

Contact us to test-drive a Model 1700 in your own rig. No purchase required.

The Model 1700 includes:

  • Operator's manual
  • Four 3-foot cables (5-pin connector on one end; Catalog #: 692000)
  • Rack mount hardware

  • Voltage, fB = 10 Hz-10 kHz, typical: 1.0 µV, p-p
Offset Voltage
  • Average Drift , maximum: ± 30.0 µV/Deg C
Bias Current
  • Initial Bias Current, maximum: ± 0.4 nA
Offset Current
  • Input Offset Current, maximum: ± 0.4 nA
Input Impedance
  • 1012 Ω || 50 pF
Inter-channel Crosstalk
  • 90 dB at 1 kHz
Voltage Range
  • x100: .11 VAC or .11 VDC ± 5%
  • x1000: .011 VAC or .11 VDC ± 5%
  • x10000: .0011 VAC or .11 VDC ± 5%
  • Common Mode Rejection (CMR): 75 dB
Slew Rate
  • 2 V/µS
Rated Output
  • Voltage Output: ± 11 V
  • Current Output: 5 mA
  • Output Resistance: >5 Ωs
Low Cut-Off Filter
  • Cut-Off Frequencies: 0.1, 1.0, 10.0, 100, 300 Hz
  • Cut-Off Rate: 40 dB/decade
High Cut-Off Filter
  • Cut-Off Frequencies: 0.5, 1.0, 5.0, 10, 20 kHz
  • Cut-Off Rate: 40 dB/decade
Notch Filter
  • Center Frequency: 50 Hz or 60 Hz (factory preset)
  • Rejection: >35 dB

Optional Record-Only Headstage

Many users are interested in the simultaneous recording of spike activity and LFPs or EEG. However, spike activity is often performed with high-impedance electrodes (impedance values greater than 1.5 MΩ) and thus require pre-amplifying headstages for effective recording of the neural signal.

Optional record-only headstages can be paired with the Model 1700 in order to perform such recordings. For a minimal modification fee, A-M Systems can modify any channel (or multiple channels) to work with the headstage. We currently offer single and dual channel headstages, and we will be offering a miniature four channel headstage in the near future.

In addition, we can modify the Model 1700 to record both spike and LFP/EEG from the same electrode-headstage combination, by routing the post headstage signal to two separate Model 1700 channels, where each channel has independent gain and filtering. Please contact us for pricing and ordering information.

Modification of Model 1700

It is important to note that modifying the Model 1700 to work with a headstage does comes with a functional cost. Putting a headstage on the front end of one of these units eliminates the ability to use the stimulation mode on that channel of the amplifier, thereby preventing the user from passing current to the site through the electrode. In addition, the headstage is a DC unit, thus the amplifier will saturate if the offset between the electrode and the reference is too large. In the modified units, this is 1 V, which should still provide plenty of room to record most signals.

When we modify a unit for use with a headstage, we decrease the gain on the inner channels by a factor of 10, so the overall gain remains as indicated on the switch labels. The modification consists of supplying power to drive the headstage, and this requires a slight circuit modification.

Please contact us for an accurate price quote for the modification.

Catalog # Product Price
692200 Model 1700 Mini D/C Coupled Headstage
Price: $382.00
694500 Modification fee for D/C Headstage
Price: $105.00
701900 Input Connector Cable Set for Models 1700/1800/3000 Headstages-4 in.
Price: $45.00
701912 Input Connector Cable Set for Models 1700/1800/3000 Headstages-12 in.
Price: $49.00
692012 12' Input Cable (5-pin connector on one end)
Price: $146.00
521500 5 Contact Male Cable Connector
Price: $82.00
692000 3' Input Cable (5-pin connector on one end)
Price: $126.00
701700 3' Input Cable (5-pin connector to dual-banana plug)
Price: $104.00
701800 3' Input Cable (5-pin connector to BNC)
Price: $104.00
688000 Rack Mount Hardware for 3.5" Instruments
Price: $25.00

Requesting a Quote Is Simple

Add your desired products to cart, and choose "Request Quote" as your payment option at checkout.

We will generate a formal quote and email it to you usually in less than 24 hours.

If you have additional requirements, please add them to the Order Notes and click save (as shown in the image).

How to Request a Quote at A-M Systems
 A-M Systems instruments are not approved for use with human subjects in either a clinical or research environment.
Catalog #:690000
Price: $2,980.00