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Tektronix AM503

Current Probe Amplifier

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Description

The Tektronix AM503 is a Current Probe Amplifier.

The AM503 Current Probe Amplifier allows display of current on any oscilloscope having 10 mV/div sensitivity, 50 ohm or 1 Mohm input, and at least 100MHz when using the A6302 or 50MHz when using the A6303. The amplifier attenuator has 12 calibrated steps in a 1-2-5 sequence, and the knob-skirt is illuminated to indicate the current per division.

Key Points

Displays Current Signals on an Oscilloscope
Current Range, Maximum Current, and Bandwidth Determined by the Probe.
Allows display of current on any oscilloscope with 10 mV/div sensitivity, 50 ohms or 1 M ohm input.
Bandwidth can be set to Full (where it is limited by the probe in use) or to 5 MHz.
Coupling can be switch selected to ac or dc.

Specifications

Maximum Input Current - 20 A (dc + peak ac) for A6302; 100 A (dc + peak ac) for A6303.
Maximum Voltage for Current Under Test (Bare Conductor) - 500 V (dc + peak ac) for A6302; 700 V (dc + peak ac) for A6303.
Bandwidth (-3dB) - Dc to at least 50 MHz with A6302; Dc to at least 15 MHz with A6303.
Rise Time (Full Bandwidth) - 7 ns or less with A6302; 23 ns or less with A6303.
Deflection Factor - 1 mA/div to 5 A/div for A6302; 20 mA/div to 50 A/div for A6303. In a 1-2-5 sequence for both probes.