Product Overview - Keithley 2500 User Manual

Model 2500 and 2502 User's Manual

Product overview

NOTE
The Model 2500 combines two stable DC bias voltage sources with two low-noise amme-
ters for dual-channel, low-current photodiode measurements. The unit has 0.1% basic
measurement accuracy with up to 6 -digit resolution. At 5 -digit resolution, the
Model 2500 can transfer up to 475 readings per second over the GPIB, and up to 900 read-
ings per second with 4 -digit resolution.
Each Model 2500 channel has the following measurement and voltage bias capabilities:
• Measure current from 1fA to 20mA.
• Source bias voltage from 500µV to 100V.
Some additional capabilities of the Model 2500 include:
• Sweep capabilities: linear and logarithmic staircase, and custom sweeps of up to 2500
points.
• Two hardware limit tests and four software limit tests with a built-in comparator for
pass/fail testing.
• Digital I/O for stand-alone binning operations or interface to component handler.
• Programming language and remote interfaces — The Model 2500 uses the SCPI pro-
gramming language and two remote interface ports (IEEE-488/GPIB and RS-232C).
• Trigger-Link interface to Keithley Series 7000 switching hardware.
• Math functions — V/I, I/V, optical power, electrical power, ratio, delta, and offset
functions.
• Reading and setup storage — Up to 3000 5 -digit readings for each channel and
seven setups (five user defaults, factory default, *RST default) can be stored and
recalled.
• Closed-cover calibration — The instrument can be calibrated either from the front
panel or remote interface.
• The Model 2502 adds an analog output for each channel. Each analog output provides
a -10V to +10V output voltage analogous to the input current.
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
TestEquipmentDepot.com
This manual covers both the Model 2500 and 2502, which are virtually identical
except for the addition of analog outputs on the Model 2502. All references to
the Model 2500 apply to the Model 2502 unless otherwise noted.
Getting Started 1-5