TCP305 and TCP312 Performance Verification
Rise Time
This procedure measures the rise time of the TCP305 and TCP312 Current Probes.
In this test you directly measure the rise time of a step input. Setup equipment
connections.
Figure 8: Rise time test setup for the TCP305 and TCP312
Equipment Connections
1. If you ar
e using a Tektronix oscilloscope that supports the TekProbe Level 2
Interface, use the TekProbe Interface Cable to connect the amplifier OUTPUT
to the oscilloscope input. If you are not using a Tektronix oscilloscope that
supports the TekProbe Level 2 Interface, use a 50 Ω BNC cable. If the
input impedance of your oscilloscope is 1 MΩ, connect a 50 Ω feedthrough
termination at the oscilloscope input. Do not connect the termination at the
ampl
ifier output.
2. Connect the current probe to the amplifier PROBE INPUT.
3. Connect the HF current loop to the high amplitude pulse generator output.
NOTE. If your oscilloscope cannot trigger on the pulse, use another BNC cable
to c
onnect the trigger output of the pulse generator to the trigger input of the
oscilloscope. Configure the oscilloscope for an external trigger.
Equipment S ettings
M
ake or verify the equipment settings: (See Table 13 on page 23.)
24 TCPA300/400 Amplifiers and TCP300/400 Series Current Probes Service Manual
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