The 6140A is a Current Source from HP. A current source is a type of electronic test equipment in circuit form that can deliver or absorb electrical current that’s independent of the voltage across its terminals. There are two types of current sources: dependent and independent. A dependent current source delivers an electric current that is proportional to another voltage in the circuit. An independent current source delivers a constant current.
Additional Features:
±16.384 mA to ±99.99 mA @ 100V depending on the option and range specified
Isolated output
Fast,accurate, high resolution programming
Bipolar output
Current sink or source
Programmable current latch (on voltage sources) or voltage limit (on current sources)