Keithley 6487 Reference Manual

D
IEEE-488 Bus Overview
• Bus description – This section gives a detailed description of the bus. Introduces
and defines the controller, talker, and listener.
• Bus lines – This section describes the operation of data lines, bus management
lines, and handshake lines.
• Bus commands – This section describes the purpose of bus commands, lists the
three catagories of bus commands, and defines the three catagories.
• Interface function codes – This section lists and defines the interfce function
codes for the Model 6487.

Keithley 6487 Specifications

General

Type	Picoammeter/Voltage Source
Current Measurement Range	20 fA to 20 mA
Interfaces	GPIB, RS-232
Voltage Burden	< 200 µV
Input Impedance	>10^14 Ω
Power	100 V / 120 V / 220 V / 240 V
Basic Current Measurement Accuracy	0.4%