5113A Low Noise Voltage Preamplifier

Highlights​​

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• Low noise

• Single-ended or differential input modes

• DC to 1 MHz frequency response

• Optional low-pass, bandpass or high-pass signal channel filtering

• “Sleep” mode to eliminate digital noise

• Optically isolated RS-232 control interface

• Battery or line power

Applications and Software​

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The 5113A will be of use in applications as diverse as radio astronomy, audiometry, test and measurement, process control and general-purpose signal amplification as well as being ideally suited to work with our range of lock-in amplifiers.

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• Acoustic research

• Radio astronomy

• AC bridge measurements

• Oscilloscope preamplification

• Hall-effect signal amplification

Specifications​

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Inputs

• Modes: A or A-B

• Coupling: AC or DC

• Impedance

AC Coupled: Either 10 MΩ or 100 MΩ in parallel with 25 pF and in series with 0.1 μF

DC Coupled: Either 10 MΩ or 100 MΩ in parallel with 25 pF

Max. Input without Damage

• DC Coupled: +10 V, -9 V

• AC Coupled: Coupling capacitors can withstand 100 V. Transients that pass through coupling capacitors must not exceed DC coupled operation limits

Max. Input for Linear Operation

• Common Mode: 1 V peak