Tektronix P6205, Instruction Manual

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P6205 Instruction Manual
1–1
Getting Started
The Tektronix P6205 FET probe is an active 10X-attenuating probe
that is compatible with Tektronix TDS 500 Series, DSA 600 Series,
11000 Series, and CSA 404 oscilloscopes and plug-in units.
Product Description
The P6205 probe provides high-frequency measurement capability
without the capacitive loading and performance limitations inherent
in passive resistive-divider type probes. FETs are used in the P6205
to establish the characteristic high input impedance at high
frequency of an active probe. The P6205 features a 750 MHz
bandwidth with an input impedance of 1 M
W
in parallel with 2 pF.
You must terminate the P6205 probe output into 50
W
.
The P6205 includes the TEKPROBE
t
Level 2 interface. When used
with a fully TEKPROBE interface-compatible oscilloscope, the
P6205 probe is powered by the host instrument and provides the
oscilloscope with the probe model number, serial number, and
attenuation factor. When installed on a fully compatible oscillo-
scope, the oscilloscope channel input is automatically set to 50
W
and the display readouts are corrected for the probe attenuation
factor.
Oscilloscopes without the TEKPROBE Interface
The P6205 is an active probe that requires external power to operate.
If your oscilloscope is not equipped with the TEKPROBE interface,
we recommend that you use the Tektronix 1103 TEKPROBE Power
Supply. By connecting the probe to the 1103 power supply, and the
power supply output to your oscilloscope input, you can use the
P6205 probe with oscilloscopes having conventional BNC inputs.
The 1103 can power two P6205 probes simultaneously.
To maintain the best possible high-frequency response with the 1103
power supply, keep the cable connecting the 1103 output to the
oscilloscope input as short as possible. You must use an oscilloscope
with 50
W
input impedance with this system.