Model 4205-Rbt (Remote Bias Tee) And Power Divider; Rbt; 3-Port Power Divider - Keithley 4200-SCS Reference Manual

Section 12: Pulse Projects for Models 4200-PIV-A and 4200-PIV-Q

Model 4205-RBT (Remote Bias Tee) and Power Divider

The Model 4205-RBT and Power Divider are used for the Keithley
PulseIV
Models 4200-PIV-A and 4200-PIV-HR Pulse-IV solution bundles. Also included are two
4200-MAG-BASE mounts (magnetically attaches Bias Tee adapters to platen of prober).
NOTE

RBT

The Remote Bias Tee (RBT) adapter (refer to
and pulse output from a Model 4205-PG2 pulse generator channel. The output of the RBT
provides pulse output riding on the DCV bias.
As shown in
SMU (FORCE and SENSE), and two female SMA connectors; one for AC inputs, such as a pulse
generator card and scope card (4200-SCP2HR or 4200-SCP2), and one for AC+DC output
connection to a prober or directly to a DUT.
Figure 12-1
pulse generator card to pass through to the output, while blocking DC from the SMU. The
inductors allow DC from the SMU to pass through to the output, while blocking pulses from the
pulse generator.
Figure 12-1
Model 4205-RBT

3-Port Power Divider

The 3-Port Power Divider divides the electrical power equally among its three connectors using a
16.67W resistor in each leg (see
provide an impedance matched signal (pulse) path (50 Ω).
As shown in
SMA male connector. The SMA male connector allows the Power Divider to connect directly to the
RBT (AC Input).
12-2
projects. Two RBT Bias Tee adapters and one 3-Port Power Divider are included with the
Refer to Section 4 (Pulse Applications) of the Applications Manual for complete
connection details using the entire PIV package to test a transistor DUT.
Figure 12-1, the RBT has two three-lug female triax connectors for connection to an
also shows the simplified schematic of the RBT. The capacitor allows pulses from the
Connect to
1
SMU SENSE
Connect to
1
SMU FORCE
4205-RBT Remote Bias Tee
3-Lug Triax Connectors
(female)
1) When using a SMU PreAmp, use 4200-TRX-X cables for connections. When
NOT using a PreAmp, use 4200-MTRX-X cables for connections.
2) Use SMA cables (male-to-male) for connections.
Figure 12-2, the Power Divider is equipped with two SMA female connectors and one
Return to
Pulse Projects for Models 4200-PIV-A and 4200-PIV-Q
Figure 12-1) is a coupler for DC bias from a SMU
Connect to pulse generator card
2
and/or scope card
AC Input
20kW
Figure 12-2). The Power Divider is used on the gate of a FET to
Section Topics
Model 4200-SCS Reference Manual
PulseIV-Complete and Demo-
SMA Connectors
(female)
Connect to DUT
2
or Prober
4200-901-01 Rev. S / May 2017
Section 12