User manual

TCPA300 and TCPA400 Performance Verification

5-10

TCPA300/400 Amplifiers and TCP300/400 Series Current Probes Instruction Manual

Table 5- 6: Equipment settings for bandwidth check (Cont.)

Oscilloscope

Record length 500

Coupling DC

Offset 0 V (mid-scale)

Trigger type Edge

Trigger mode Auto

Trigger position 50%

Acquisition mode Average

Number of waveforms to average 16

Measurement type Peak-to-Peak

Leveled sine wave generator

Frequency 3MHz

Amplitude TCPA300

TCPA400

~3.0 V

p-p

1.0 V

p-p

TCPA300 and TCPA400

Coupling DC

4. Connect the Calibration Adapter to the output of the leveled sine wave

generator.

5. Enable the output of the leveled sinewave generator.

6. Verify the amplifier output is what is listed for the TCPA300 amplifier in

Table 5--7 on page 5--11. If you are checking a TCPA400 amplifier, use

Table5--8onpage5--11.

7. Using the peak-peak measurement capability of the oscilloscope, measure

and record the peak-peak reading as M

in Table 5--7 or Table 5--8 on

page 5--11.

8. If you are checking a TCPA300, for each range setting and bandwidth filter

in Table 5--7 on page 5--11, perform the following steps. If you are checking

a TCPA400, use Table 5--8 on page 5--11.

a. Set the oscilloscope time base to 4 or 5 ns/division. Increase the signal

generator frequency to 50 or 100 MHz, depending on the range setting

and bandwidth.

b. When you check the 100 MHz frequency, press either MANUAL

BALANCE button until the orange MANUAL BALANCE LED lights.

This engages a higher -frequency filter in the amplifier. After you check

the bandwidth at 100 MHz, press either MANUAL BALANCE button

again to turn off the filter (the LED goes off.)