Datasheet

SMU INSTRUMENTS
www.keithley.com
1.888.KEITHLEY
(U.S. only)
A Greater Measure of Confidence
2651A
50A, High Power System
SourceMeter
®
SMU Instrument
Two A/D converters are used with each
measurement mode (one for current and the
other for voltage), which run simultaneously for
accurate source readback that does not sacrifice
test throughput.
7
6
5
4
3
2
1
0
0 25 50 75 100 125 150 175 200
Voltage (V)
Current (A)
Time (µs)
Volts Current
60
50
40
30
20
10
0
The dual digitizing A/D converters sample at
up to 1µs/point, enabling full simultaneous
characterization of both current and
voltage waveforms.
High Speed Pulsing
The Model 2651A minimizes the unwanted
effects of self heating during tests by accurately
sourcing and measuring pulses as short as
100µs. Additional control flexibility enables you
to program the pulse width from 100µs to DC
and the duty cycle from 1% to 100%. A single
unit can pulse up to 50A; combine two units
to pulse up to 100A.
Expansion Capabilities
Through TSP-Link Technology technology, mul-
tiple Model 2651As and selected Series 2600B
SMU instruments can be combined to form a
larger integrated system with up to 64 channels.
Precision timing and tight channel synchroniza-
tion are guaranteed with built-in 500ns trigger
controllers. True SMU instrument-per-pin testing
is assured with the fully isolated, independent
channels of the SourceMeter SMU instruments.
26xxB
2651A
2651A
Up to
100A
TSP-Link
LXI or GPIB
to PC
Controller
Keithley’s TSP and TSP-Link Technologies
enable true SMU-per-pin testing without
the power and/or channel limitations of a
mainframe-based system.
Also, when two Model 2651As are connected in
parallel with TSP-Link Technology, the current
range is expanded from 50A to 100A. When two
units are connected in series, the voltage range
is expanded from 40V to 80V. Built-in intel-
ligence simplifies testing by enabling the units
to be addressed as a single instrument, thus
creating an industry-best dynamic range (100A
to 1pA). This capability enables you to test a
much wider range of power semiconductors and
other devices.
60
50
40
30
20
10
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
Vgs = 2.01
V
Vgs = 2.25
V
Vgs = 2.50
V
Vgs = 2.75
V
Vgs = 3.00
V
Vgs = 3.25
V
Vgs = 3.51
V
Vds (V)
Id (A)
Precision measurements to 50A (100A with
two units) enable a more complete and
accurate characterization.
Standard Capabilities of Series
2600B SMU Instruments
Each Model 2651A includes all the features and
capabilities provided in most Series 2600B SMU
instruments, such as:
• Ability to be used as either a bench-top
I-V characterization tool or as a building
block component of multiple-channel I-V
test systems
• TSP Express software to quickly and
easily perform common I-V tests without
programming or installing software
• ACS Basic Edition software for semiconductor
component characterization (optional).
ACS Basic now features a Trace mode for
generating a suite of characteristic curves.
• Keithley’s Test Script Processor (TSP
®
)
Technology, which enables creation of
custom user test scripts to further automate
testing, and also supports the creation of
programming sequences that allow the
instrument to operate asynchronously
without direct PC control.
• Parallel test execution and precision
timing when multiple SMU instruments are
connected together in a system
• LXI compliance
• 14 digital I/O lines for direct interaction with
probe stations, component handlers, or other
automation tools
• USB port for extra data and test program
storage via USB memory device
Ordering Information
2651A High Power System
SourceMeter
®
SMU
Instrument
Accessories Supplied
2651A-KIT-1A: Low Impedance
Cable Assembly (1m)
CS-1592-2: High Current
Phoenix Connector (male)
CS-1626-2: High Current
Phoenix Connector (female)
CA-557-1: Sense Line
Cable Assembly (1m)
7709-308A: Digital I/O Connector
CA-180-3A: TSP-Link/Ethernet Cable
Documentation CD
Software Tools and Drivers CD
0.020
0.018
0.016
0.014
0.012
0.010
0.008
0.006
0.004
0.002
0.000
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5
Vgs (V)
Rds (ohms)
Id = 10A
Id = 20A
Id = 30A
Id = 40A
Id = 50A
1µV measurement resolution and current
sourcing up to 50A (100A with two units)
enable low-level Rds measurements to
support next-generation devices.
ACCESSORIES AVAILABLE
2600-KIT Screw Terminal Connector Kit
ACS-BASIC Component Charaterization Software
4299-6 Rack Mount Kit
8011 Test Socket Kit
High power System SourceMeter SMU instrument High power System SourceMeter SMU instrument