Atec Tektronix-TCPA Series - Manual (Page 2)

Data Sheet
Meets Today's AC/DC Current Measurement
Applications
The TCPA300 amplifier, when used with TCP312, TCP305, or TCP303
probes, provides a wide range of current measurement capability and spans
the gap between low-level milliamp measurements to very high current
levels. These three probes provide current measurement capabilities of
30 A, 50 A, and 150 A DC continuous. For even higher current levels, the
TCPA400 amplifier with the TCP404XL current probe measures 500 A DC
continuous and 750 A DC continuous, derated with duty cycle.
Higher frequency performance is available with the TCP312 w/TCPA300
providing ≥100 MHz bandwidth and a maximum current of 30 A DC.
Measurement Errors and Manual Calculations are Now
a Thing of the Past
With this new series of current measurement tools, automatic control and
on-screen scaling and units is provided for users of Tektronix TDS3000,
TDS500, TDS600, TDS700, TDS5000, TDS6000, and TDS7000B Series
oscilloscope systems (the DPO3000, DPO4000, and DPO7000 Series
oscilloscopes, the TPA-BNC adapter is required).
The TCP300/TCP400 current measurement systems seamlessly integrate
with your TDS Series oscilloscope.
Even non-TEKPROBE systems can use the TCPA300/400 Series to make
proper current measurements by simply multiplying the measured output
voltage on the oscilloscope by the TCPA300/400 Series range setting.
Characteristics
Characteristic TCP312 w/ TCPA300 TCP305 w/ TCPA300 TCP303 w/ TCPA300 TCP404XL w/ TCPA400
Bandwidth (–3 dB) DC – 100 MHz DC – 50 MHz DC – 15 MHz DC – 2 MHz* 3
Rise Time ≤3.5 ns ≤7 ns ≤23 ns ≤175 ns
Maximum Current Ratings:
High-current Sensitivity Range
10 A/V Range 10 A/V Range 50 A/V Range 1 A/mV Range
DC (Continuous) 30 A 50 A 150 A 500 A (750 A* 4 )
RMS (Sinusoidal) 21.2 A 35.4 A 150 A 500 A
Peak Pulse 50 A 50 A 500 A 750 A
Low-current Sensitivity Range 1 A/V Range 5 A/V Range 5 A/V Range N/A
DC (Continuous) 5 A 25 A 25 A N/A
RMS (Sinusoidal) 3.5 A 17.7 A 17.7 A N/A
Peak Pulse 50 A 50 A 500 A N/A
DC Accuracy
(Operating temp 0 °C to 50 °C)
±3% of reading ±3% of reading ±3% of reading (10 °C to 50 °C)
+3%/–6% of reading (0 °C
to <10 °C)
±3% of reading
DC Accuracy, Typical
(Operating temp 23 °C ±5 °C)
±1% of reading ±1% of reading ±1% of reading ±1% of reading
Nominal
Maximum Bare Wire Voltage For use with insulated wires only 600 V
RMS
CAT I & II
300 V
RMS
CAT III
1 mA 5 mA 5 mA 1 A Lowest Measurable Current
(at ±3% accuracy at DC)
Scope set to 1 mV/div and 20 MHz BW Limited Scope set to 1 mV/div and 20 MHz BW Limited
Insertion Impedance
(See curves below)
0.08 Ω at 1 MHz
0.15 Ω at 10 MHz
0.27 Ω at 50 MHz
0.7 Ω at 100 MHz
0.035 Ω at 1 MHz
0.12 Ω at 10 MHz
0.4 Ω at 50 MHz
0.01 Ω at 1 MHz
0.025 Ω at 5 MHz
0.1 Ω at 15 MHz
0.1 mΩ at 10 kHz
0.6 mΩ at 100 kHz
8 mΩ at 1 MHz
16 mΩ at 2 MHz
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