Tektronix Keithley 2601B-PULSE Reference Manual

Section 7: Theory of operation Model 2601B-PULSE System SourceMeter Instrument Reference Manual
7-28 2601B-PULSE-901-01A April 2020
Maximum DUT impedances for specified settling time performance
Range
SMU feedback impedance
Maximum DUT
impedance
1 nA
1 GΩ
2 GΩ
10 nA
120 MΩ
60 MΩ
100 nA
40 MΩ
20 MΩ
1 µA
1.2 MΩ
600 kΩ
10 µA
400 kΩ
200 kΩ
100 µA
12 kΩ
6 kΩ
1 mA
4 kΩ
2 kΩ
10 mA
120 Ω
60 Ω
100 mA
40 Ω
20 Ω
1 A
1 Ω
6 Ω
1.5 A
1 Ω
6 Ω
3 A
0.3 Ω
1.5 Ω
When the pulser is enabled, the SMU can meet its settling time for any load up to ±10 V and 3 µH.
Creating pulses with the 2601B-PULSE SMU
Although the 2601B-PULSE SMU is not a pulse generator, you can create pulses by programming
the SMU to output a DC value and then return to an idle level. For information on how to create
pulses, refer to Sweep operation (on page 4-61) and Using the remote trigger model (on page 6-3).
Pulse rise and fall times
The pulse rise times are not programmable.
When the pulser is disabled, the pulse rise time is the time it takes a pulse to go from 10% to 90% of
the maximum value of the pulse. Pulse fall time is similar but on the trailing edge of the pulse. For the
2601B-PULSE SMU, pulse rise and fall times can vary depending on the following factors:
• Range and pulse settling (on page 7-29)
• Load and operating mode (on page 7-29)
• Compliance limit settings (for details, see Limits (on page 4-2))

Tektronix Keithley 2601B-PULSE Specifications

General

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