Tektronix Keithley 2601B-PULSE Reference Manual

Section 11: TSP command reference Model 2601B-PULSE System SourceMeter Instrument Reference Manual
11-98 2601B-PULSE-901-01A April 2020
Details
Output data includes transconductance values, reading buffer with measured voltages, reading buffer
with measured voltages and currents.
If all parameters are omitted when this function is called, this function is executed with the parameters
set to the default values.
The gm_isweep() function performs a linear current sweep, measuring voltage and current, and
then calculating the transconductance (G
m
) at each point using the central difference method. It can
return an array of G
m
values, a reading buffer with the measured voltages, and a reading buffer with
the measured currents.
Example
gm_array = gm_isweep(smua, 0, 0.01, 20)
gm_array, vbuf = gm_isweep(smua, 0, 0.01, 20)
gm_array, vbuf, ibuf = gm_isweep(smua, 0,
0.01, 20)
Source-measure unit (SMU) A returns G
m
values only.
SMU A returns G
m
and reading buffer with
measured voltages.
SMU A returns G
m
and reading buffers with
measured voltages and currents.
Also see
gm_vsweep() (on page 11-98)
KIParlib factory script (on page 9-22)
gm_vsweep()
This KIParlib factory script function performs a linear voltage sweep and calculates the transconductance (G
m
) at
each point.
Type
TSP-Link accessible
Affected by
Where saved
Default value
Function
No
Usage
gm_array, ibuf, vbuf = gm_vsweep(smu, start_v, stop_v, points)
gm_array
A Lua table containing the calculated G
m
values at each point
ibuf
A reading buffer containing the measured current at each point
vbuf
A reading buffer containing the measured voltage at each point
smu
Instrument channel (for example, smua refers to SMU channel A)
start_v
Starting voltage level of the sweep
stop_v
Ending voltage level of the sweep
points
Number of measurements between start_v and stop_v (must be  2)
Details
Output data includes transconductance values, reading buffer with measured currents, reading buffer
with measured currents and voltages.
The gm_vsweep() function performs a linear voltage sweep, measuring voltage and current, and
then calculating the transconductance (G
m
) at each point using the central difference method. It can
return an array of G
m
values, a reading buffer with the measured currents, and a reading buffer with
the measured voltages.

Tektronix Keithley 2601B-PULSE Specifications

General

Brand	Tektronix
Model	Keithley 2601B-PULSE
Category	Measuring Instruments
Language	English