Model 4200A-SCS Parameter Analyzer Reference Manual
Section 13: LPT library function reference
4200A-901-01 Rev. C / February 2017
13-85
The following examples show the proper command sequence for using
rtfary
:
Example 1: Valid command
sequence for voltage sweep
Example 2: Valid command
sequence for frequency sweep
smeasz
smeasz
smeast
rtfary
rtfary
dsweepf
dsweepv
Example
(on page 13-195) returns the array of force values for the voltage sweep.
Also see
None
setauto
This command re-enables autoranging and cancels any previous
range
X
command for the specified instrument.
Usage
int setauto(int
instr_id
);
instr_id
The instrument identification code
Details
When an instrument is returned to the autorange mode, it will remain in its present range for
measurement purposes. The source range will change immediately.
Due to the dual mode operation of the SMU (v versus i),
setauto
places both voltage and current
ranges in autorange mode.
Example
double icer1;
double idatvg[25];
.
.
rangei(SMU1, 2.0E-9); /* Select manual range. */
delay(200); /* Delay after range change. */
measi(SMU1, &icer1); /* Measure leakage. */
.
.
setauto(SMU1); /* Enable autorange mode. */
lorangei(SMU1, 2.0E-6); /* Select 2 uA as minimum range */
/* during autoranging. */
delay(200); /* Delay after range change. */
smeasi(SMU1, idatvg); /* Setup sweep measurement */
/* of IDS. */
sweepv(SMU2, 0.0, 2.5, 24, 0.002); /* Sweep gate from 0 V to 2.5 V. */
Also see
None
