Keithley 2461 Reference Manual

Model 2461
Interactive SourceMeter® Instrument Reference Manual Section 3:
Functions and features
2461-901-01 A/November 2015 3-93
Input characteristics:
• The falling edge is detected as the external drive pulses the line low, and the internal drive
latches the line low.
Figure 135: Synchronous acceptor input trigger
Output characteristics:
• In addition to trigger events from other trigger objects, the TSP commands
trigger.digout[N].assert() and trigger.tsplinkout[N].assert()
• The physical line state does not change until all drives (internal and external) release the line.
• Action overruns occur if the internal drive is not latched low and a source event is received.
Figure 136: Synchronous acceptor output trigger
Connecting the Model 2461 to a Trigger Link system
Trigger Link (TLINK) is a Keithley Instruments proprietary trigger bus that is available on many
Keithley Instrument products. The Model 2461 supports TLINK systems. You can connect the Model
2461 to a TLINK system using the Model 2450-TLINK Trigger Link Cable. Configure the appropriate
Model 2461 digital I/O lines as open-drain inputs or outputs for compatibility with TLINK.

Keithley 2461 Specifications

General

Maximum Current	7 A
Power	100 W
Resolution	6.5 digits
Source Measure Unit (SMU)	Yes
DC Voltage	100 V
Maximum Voltage	100 V
Display	5-inch capacitive touchscreen
Connectivity	USB, GPIB
Software	TSP
DC Current	7 A
Current Source Range	0 to 7 A
Voltage Measurement Range	100 mV to 100 V
Current Measurement Range	10 nA to 7 A
Voltage Measurement Resolution	100 nV