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Series 2400 SourceMeter SMU Instruments

Series 2400 Source Measure Unit Datasheet

Series 2400 Source Measure Unit Datasheet

Keithley’s Series 2400 Source Measure Unit (SMU) Instruments are designed specifically for test applications that demand tightly coupled sourcing and measurement. All SourceMeter models provide precision voltage and current sourcing as well as measurement capabilities. Each SourceMeter SMU instrument is both a highly stable DC power source and a true instrument-grade 6½-digit multimeter. The power source characteristics include low noise, precision, and readback. The multimeter capabilities include high repeatability and low noise. The result is a compact, single-channel, DC parametric tester. In operation, these instruments can act as a voltage source, a current source, a voltage meter, a current meter, and an ohmmeter. Manufacturers of components and modules for the communications, semiconductor, computer, automotive, and medical industries will find the SourceMeter SMU instruments invaluable for a wide range of characterization and production test applications.

Key Features

  • Five instruments in one (IV Source, IVR Measure)
  • Five models: 20–100 W DC, 1000 W pulsed, 1100 V to 1 µV
  • Source and sink (4-quadrant) operation
  • 0.012% basic measure accuracy with 6½-digit resolution
  • 2-, 4-, and 6-wire remote V-source and measure sensing
  • 1700 readings/second at 4½ digits via GPIB
  • Pass/Fail comparator for fast sorting/binning
  • Programmable DIO port for automation/handler/prober control (except 2401)
  • Standard SCPI GPIB, RS-232 and Keithley Trigger Link interfaces
  • Download KickStart today and try it out for 60 days

Advantages of a Tightly Integrated Instrument

By linking source and measurement circuitry in a single unit, these instruments offer a variety of advantages over systems configured with separate source and measurement instruments. For example, they minimize the time required for test station development, setup, and maintenance, while lowering the overall cost of system ownership. They simplify the test process itself by eliminating many of the complex synchronization and connection issues associated with using multiple instruments. And, their compact half-rack size conserves precious “real estate” in the test rack or bench.

Source-Measure-Unit-Series-2400
Source-Measure-Unit-Series-2400

Power of Five Instruments in One (IV Source, IVR Measure)

The tightly coupled nature of a SourceMeter SMU instrument provides many advantages over solutions configured from separate instruments, such as a precision power supply and a digital multimeter. For example, it provides faster test times by reducing GPIB traffic and simplifies the remote programming interface. It also protects the device under test from damage due to accidental overloads, thermal runaway, etc. Both the current and voltage source are programmable with readback to help maximize device measurement integrity. If the readback reaches a programmed compliance limit, then the source is clamped at the limit, providing fault protection.

I-V Characteristics

All SourceMeter SMU instruments provide four-quadrant operation. In the first and third quadrants they ­operate as a source, delivering power to a load. In the second and fourth quadrants they operate as a sink, ­dissipating power internally. Voltage, current, and resistance can be measured during source or sink ­operation.

Automation for Speed

A SourceMeter SMU instrument streamlines production testing. It sources voltage or current while making measurements without needing to change connections. It is designed for reliable operation in non-stop production environments. To provide the throughput demanded by production applications, the SourceMeter SMU instrument offers many built-in features that allow it to run complex test sequences without computer control or GPIB communications slowing things down.

Standard and Custom Sweeps

Sweep solutions greatly accelerate testing with automation hooks. Three basic sweep waveforms are provided that can be programmed for single-event or continuous operation. They are ideal for I/V, I/R, V/I, and V/R characterization.

  • Linear Staircase Sweep: Moves from the start level to the stop level in equal linear steps
  • Logarithmic Staircase Sweep: Done on a log scale with a specified number of steps per decade
  • Custom Sweep: Allows construction of special sweeps by specifying the number of measurement points and the source level at each point
  • Up to 1700 readings/second at 4½ digits to the GPIB bus
  • 5000 readings can be stored in the non-volatile buffer memory
Source-Measure-Unit-Series-2400

Built-In Test Sequencer (Source Memory List)

The Source Memory list provides faster and easier testing by allowing you to setup and execute up to 100 different tests that run without PC intervention.

  • Stores up to 100 instrument configurations, each containing source settings, measurement ­settings, pass/fail criteria, etc.
  • Pass/fail limit test as fast as 500 µs per point
  • Onboard comparator eliminates the delay caused when sending data to the computer for analysis
  • Built-in, user definable math functions to calculate derived parameters
Source-Measure-Unit-Series-2400

Test

Pass/Fail Test

If Passes Test

If Fails Test

Test 1

Check VF1 at 100 mA against pass/fail limits

Go to Test 2

1. Bin part to bad bin

2. Transmit data to computer while handler is placing new part

3. Return to Test 1

Test 2

Check VF2 at 1 A against pass/fail limits

Go to Test 3

Test 3

Check leakage ­current at –500 V and test against pass/fail limits

1. Bin part to good bin

2. Transmit readings to computer while handler is placing new part

3. Return to Test 1

Example test sequence

Digital I/O Interface

The digital I/O interface can link a SourceMeter SMU instrument to many popular component handlers, including Aetrium, Aeco, and Robotronics. Other capabilities of the interface include:

  • Tight systems integration for applications such as binning and sorting
  • Built-in component handler interface
  • Start of test and end of test signals
  • 5 V, 300 mA power supply
  • Optional expander accessory (2499-DIGIO) adds 16 digital I/O lines

The digital I/O interface is available on all Series 2400 SoourceMeter instruments except the 2401.

Trigger Link Interface

All SourceMeter SMU instruments include Keithley’s unique Trigger Link interface, which provides high-speed, seamless communications with many of Keithley’s other instruments independent of a computer and GPIB.

Unique 6-Wire Ohms Technique

SourceMeter SMU instruments can make standard 4-wire, split Kelvin, and 6-wire, guarded ohms measurements and can be configured for either the constant current or constant voltage method. The 6-wire ohms technique:

  • Uses guard and guard sense leads in addition to the 4-wire sense and source leads.
  • Locks out parallel current paths when measuring resistor networks or hybrid ­circuits to isolate the component under test.
  • Allows users to configure and plot data easily from Series 2400 SourceMeter SMU instruments, making characterization of two, three, and four terminal devices a snap.
Source-Measure-Unit-Series-2400

6-Wire Ohms Circuit. All test current flows through R1 because the high current guard drives the voltage across R2 to 0 V.

Voltage Accuracy (Local or Remote Sense)

Model

Range

Programming Resolution

Source 1

Accuracy (1 Year)23°C ±5°C±(% rdg. + volts)

Default Measurement Resolution

Measurement 2, 3, 4 Accuracy (1 Year)23°C ±5°C±(% rdg. + volts)

Output Slew Rate (±30%)

Source/Sink Limit

2400, 2401

200.000 mV

5 µV

0.02% + 600 µV

1 µV

0.012% + 300 µV

 

±21 V @ ±1.05 A

±210 V @ ±105 mA*

2.00000 V

50 µV

0.02% + 600 µV

10 µV

0.012% + 300 µV

 

20.0000 V

500 µV

0.02% + 2.4 mV

100 µV

0.015% + 1.5 mV

0.08 V/µs

200.000 V*

5 mV

0.02% + 24 mV

1 mV

0.015% + 10 mV

0.5 V/µs

2410

200.000 mV

5 µV

0.02% + 600 µV

1 µV

0.012% + 300 µV

 

±21 V @ ±1.05 A

±1100 V @ ±21 mA

2.00000 V

50 µV

0.02% + 600 µV

10 µV

0.012% + 300 µV

 

20.0000 V

500 µV

0.02% + 2.4 mV

100 µV

0.015% + 1 mV

0.15 V/µs

1000.00 V

50 mV

0.02% + 100 mV

10 mV

0.015% + 50 mV

0.5 V/µs

2420

200.000 mV

5 µV

0.02% + 600 µV

1 µV

0.012% + 300 µV

 

±21 V @ ±3.15 A

±63 V @ ±1.05 A

2.00000 V

50 µV

0.02% + 600 µV

10 µV

0.012% + 300 µV

 

20.0000 V

500 µV

0.02% + 2.4 mV

100 µV

0.015% + 1 mV

0.08 V/µs

60.0000 V

1.5 mV

0.02% + 7.2 mV

1 mV

0.015% + 3 mV

0.14 V/µs

2440

200.000 mV

5 µV

0.02% + 600 µV

1 µV

0.012% + 300 µV

 

±10.5 V @ ±5.25 A

±42 V @ ±1.05 A

2.00000 V

50 µV

0.02% + 600 µV

10 µV

0.012% + 300 µV

 

10.0000 V

500 µV

0.02% + 1.2 mV

100 µV

0.015% + 750 µV

0.08 V/µs

40.0000 V

5 mV

0.02% + 4.8 mV

1 mV

0.015% + 3 mV

0.25 V/µs

*Not available on 2401.

NOTES

  1. 2400, 2401, 2410 Only: Specifications valid for continuous output currents below 105 mA. For operation above 105 mA continuous for >1 minute, derate accuracy 10%/35 mA above 105 mA.
  2. Speed = Normal (1 PLC). For 0.1 PLC, add 0.005% of range to offset specifications, except 200 mV, 1 A, 10 A ranges, add 0.05%. For 0.01 PLC, add 0.05% of range to offset specifications, except 200 mV, 1 A, 10 A ranges, add 0.5%.
  3. Accuracies apply to 2- or 4-wire mode when properly zeroed.
  4. In pulse mode, limited to 0.1 PLC measurement.

    Temperature Coefficient (0°–18°C and 28°–50°C):
    ±(0.15 × accuracy specification)/°C on 20 V and 1000 V ranges.
    ±(0.30 × accuracy specification)/°C on 200 mV and 2 V ranges..


    Voltage Regulation — Line: 0.01% of range. Load: 0.01% of range + 100 µV.


    Over Voltage Protection — User selectable values, 5% tolerance. Factory default = none.


    Current Limit — Bipolar current limit (compliance) set with single value. Min. 0.1% of range.


    Overshoot — <0.1% typical (full scale step, resistive load, 10 mA range).

Additional Source Specifications (All Models)

Transient Response Time — 30 µs minimum for the output to recover to its spec. following a step change in load.


Command Processing Time — Maximum time required for the output to begin to change following the receipt of :SOURce:VOLTage|CURRent <nrf> command. Autorange On: 10 ms. Autorange Off: 7 ms.


Output Settling Time — Time required to reach 0.1% of final value after command is processed. 100 µs typical. Resistive load. 10 µA to 100 mA range.


DC Floating Voltage — Output can be floated up to ±250 VDC (2440 ±40 VDC) from chassis ground.


Remote Sense — Up to 1 V drop per load lead.


Compliance Accuracy — Add 0.3% of range and ±0.02% of reading to base specification.


Over Temperature Protection — Internally sensed temperature overload puts unit in standby mode.


Range Change Overshoot — Overshoot into a fully resistive 100 kΩ load, 10 Hz to 1 MHz BW, adjacent ranges: 100 mV typical, except 20 V/200 V (20 V/60 V on 2420), range boundary, and 2440.


Minimum Compliance Value — 0.1% of range.

Current Accuracy (Local or Remote Sense)

Model

Range

Programming Resolution

Source 1, 3Accuracy(1 Year)23°C ±5°C±(% rdg. + amps)

Default Measurement Resolution

Measurement 5, 6, 7Accuracy (1 Year)23°C ±5°C±(% rdg. + amps)

Source/Sink Limit

2400, 2401

1.00000 µA

50 pA

0.035% + 600 pA

10 pA

0.029% + 300 pA

±1.05A @ ±21 V

±105 mA @ ±210 V8

10.0000 µA

500 pA

0.033% + 2 nA

100 pA

0.027% + 700 pA

100.000 µA

5 nA

0.031% + 20 nA

1 nA

0.025% + 6 nA

1.00000 mA

50 nA

0.034% + 200 nA

10 nA

0.027% + 60 nA

10.0000 mA

500 nA

0.045% + 2 µA

100 nA

0.035% + 600 nA

100.000 mA

5 µA

0.066% + 20 µA

1 µA

0.055% + 6 µA

1.00000 A2

50 µA

0.27 % + 900 µA

10 µA

0.22 % + 570 µA

2410

1.00000 µA

50 pA

0.035% + 600 pA

10 pA

0.029% + 300 pA

±1.05A @ ±21 V

±21 mA @ ±1100 V

10.0000 µA

500 pA

0.033% + 2 nA

100 pA

0.027% + 700 pA

100.000 µA

5 nA

0.031% + 20 nA

1 nA

0.025% + 6 nA

1.00000 mA

50 nA

0.034% + 200 nA

10 nA

0.027% + 60 nA

20.0000 mA

500 nA

0.045% + 4 µA

100 nA

0.035% + 1.2 µA

100.000 mA

5 µA

0.066% + 20 µA

1 µA

0.055% + 6 µA

1.00000 A2

50 µA

0.27 % + 900 µA

10 µA

0.22 % + 570 µA

2420

10.0000 µA

500 pA

0.033% + 2 nA

100 pA

0.027% + 700 pA

±3.15A @ ±21 V

±1.05 A @ ±63 V

100.000 µA

5 nA

0.031% + 20 nA

1 nA

0.025% + 6 nA

1.00000 mA

50 nA

0.034% + 200 nA

10 nA

0.027% + 60 nA

10.0000 mA

500 nA

0.045% + 2 µA

100 nA

0.035% + 600 nA

100.000 mA

5 µA

0.066% + 20 µA

1 µA

0.055% + 6 µA

1.00000 A2

50 µA

0.067% + 900 µA

10 µA

0.066% + 570 µA

3.00000 A2

50 µA

0.059% + 2.7 mA

10 µA

0.052% + 1.71 mA

2440

10.0000 µA

500 pA

0.033% + 2 nA

100 pA

0.027% + 700 pA

±5.25A @ ±10.5 V

±1.05 A @ ±42 V

100.000 µA

5 nA

0.031% + 20 nA

1 nA

0.025% + 6 nA

1.00000 mA

50 nA

0.034% + 200 nA

10 nA

0.027% + 60 nA

10.0000 mA

500 nA

0.045% + 2 µA

100 nA

0.035% + 600 nA

100.000 mA

5 µA

0.066% + 20 µA

1 µA

0.055% + 6 µA

1.00000 A

50 µA

0.067% + 900 µA

10 µA

0.060% + 570 µA

5.00000 A

50 µA

0.10 % + 5.4 mA

10 µA

0.10 % + 3.42 mA

NOTES

  1. 2400, 2401, 2410 Only: Specifications valid for continuous output currents below 105 mA. For operation above 105 mA continuous for >1 minute, derate accuracy 10%/35 mA above 105 mA.
  2. Full operation (1 A) regardless of load to 30°C (50°C for 2420 and 2440). Above 30°C (50°C for 2420 and 2440) ambient, derate 35 mA/°C and prorate 35 mA/Ω load. 4-wire mode. For current sink operation on 1 A, 3 A, or 5 A ranges, maximum continuous power is limited to approximately 1/2 rated power or less, depending on current, up to 30°C ambient. See power equations in the User’s Manual to calculate allowable duty cycle for specific conditions.
  3. For sink mode, 1 µA to 100 mA range, accuracy is: 2400, 2401: ±(0.15% + offset*4). 2410, 2420, 2440: ±(0.5% + offset*3). For 1 A range, accuracy is: 2400, 2401: ±(1.5% + offset*8). 2410: ±(0.15% x accuracy specification)/°C on 20 V and 1000 V ranges ±(1.5% + offset*3). 2420, 2440: ±(1.5% + offset*3.
  4. 10 A range only in pulse mode. Limited to 2.5 ms pulse width maximum. 10% duty cycle maximum.
  5. Speed = Normal (1 PLC). For 0.1 PLC, add 0.005% of range to offset specifications, except 200 mV, 1 A, 10 A ranges, add 0.05%. For 0.01 PLC, add 0.05% of range to offset specifications, except 200 mV, 1 A, 10 A ranges, add 0.5%.
  6. Accuracies apply to 2- or 4-wire mode when properly zeroed.
  7. In pulse mode, limited to 0.1 PLC measurement.
  8. 2400 only.

    Temperature Coefficient (0°–18°C and 28°–50°C) — ±(0.15 × accuracy specification)/°C.


    Current Regulation — Line: 0.01% of range. Load: 0.01% of range (except 2440 5 A range 0.05%) + 100 pA.


    Voltage Limit — Bipolar voltage limit (compliance) set with single value. Min. 0.1% of range.


    Overshoot — <0.1% typical (1 mA step, RL = 10 kΩ, 20 V range for 2400, 2401, 2410, 2420), (10 V range for 2440).

Resistance Measurement Accuracy (Local or Remote Sense) 1, 2, 5

Range

Default Resolution

Default Test Current

2400, 2401, 2410

Default Test Current

2420, 2440

Normal Accuracy (23°C ±5°C)1 Year, ±(% rdg. + ohms)

Enhanced Accuracy(23°C ±5°C)41 Year, ±(% rdg. + ohms)

2400, 2401

2410

2420, 2440

2400, 2401

<0.20000 Ω3

Source IACC + Meas. VACC

Source IACC + Meas. VACC

Source IACC + Meas. VACC

Source IACC + Meas. VACC

2.00000 Ω3

10 µΩ

1 A

Source IACC + Meas. VACC

Source IACC + Meas. VACC

0.17% + 0.0003 Ω

Source IACC + Meas. VACC

20.0000 Ω

100 µΩ

100 mA

100 mA

0.10% + 0.003 Ω

0.11% + 0.006 Ω

0.10% + 0.003 Ω

0.07% + 0.001 Ω

200.000 Ω

1 mΩ

10 mA

10 mA

0.08% + 0.03 Ω

0.09% + 0.1 Ω

0.08% + 0.03 Ω

0.05% + 0.01 Ω

2.00000 kΩ

10 mΩ

1 mA

1 mA

0.07% + 0.3 Ω

0.08% + 0.6 Ω

0.07% + 0.3 Ω

0.05% + 0.1 Ω

20.0000 kΩ

100 mΩ

100 µA

100 µA

0.06% + 3 Ω

0.07% + 6 Ω

0.06% + 3 Ω

0.04% + 1 Ω

200.000 kΩ

1 Ω

10 µA

10 µA

0.07% + 30 Ω

0.07% + 60 Ω

0.07% + 30 Ω

0.05% + 10 Ω

2.00000 MΩ6

10 Ω

1 µA

1 µA

0.11% + 300 Ω

0.12% + 600 Ω

0.11% + 300 Ω

0.05% + 100 Ω

20.0000 MΩ7

100 Ω

1 µA

1 µA

0.11% + 1 kΩ

0.12% + 2.4 kΩ

0.11% + 1 kΩ

0.05% + 500 Ω

200.000 MΩ3

1 kΩ

100 nA

0.66% + 10 kΩ

0.66% + 24 kΩ

Source IACC + Meas. VACC

0.35% + 5 kΩ

>200.000 MΩ3

Source IACC + Meas. VACC

Source IACC + Meas. VACC

Source IACC + Meas. VACC

Source IACC + Meas. VACC


Temperature Coefficient (0°–18°C and 28°–50°C) — ±(0.15 × accuracy specification)/°C.


Source I Mode, Manual Ohms — Total uncertainty = I source accuracy + V measure accuracy (4-wire remote sense).


Source V Mode, Manual Ohms — Total uncertainty = V source ­accuracy + I measure accuracy (4-wire remote sense).


6-wire Ohms Mode — Available using active ohms guard and guard sense. Max. Guard Output Current: 50 mA (except 1 A range). Accuracy is load dependent. Refer to White Paper below for calculation ­formula: “Obtaining More Accurate Resistance Measurements Using the 6-wire Ohms Measurement Technique.”


Guard Output Impedance — <0.1Ω in ohms mode.


NOTES

  1. Speed = Normal (1 PLC). For 0.1 PLC, add 0.005% of range to offset specifications, except 200 mV, 1 A, 10 A ranges, add 0.05%. For 0.01 PLC, add 0.05% of range to offset specifications, except 200 mV, 1 A, 10 A ranges, add 0.5%.
  2. Accuracies apply to 2- or 4-wire mode when properly zeroed.
  3. Manual ohms only – except 2420, 2440 for 2 Ω range and 2400, 2401, or 2410 for 200 MΩ range.
  4. Source readback enabled, offset compensation ON. Also available on 2410, 2420, and 2440 with similar ­accuracy enhancement.
  5. In pulse mode, limited to 0.1 PLC measurement.
  6. Except 2440; default test current is 5 µA.
  7. Except 2440; default test current is 0.5 µA.

System Speeds

Measurement 1

Maximum Range Change Rate — 75/second.


Maximum Measure Autorange Time40 ms (fixed source).2

Sweep Operation3 Reading Rates (rdg./second) for 60 Hz (50 Hz)

Speed

NPLC/Trigger Origin

Measure

Source-Measure

Source-Measure5Pass/Fail Test4, 5

Source-Memory4

To Mem.

To GPIB

To Mem.

To GPIB

To Mem.

To GPIB

To Mem.

To GPIB

Fast

0.01 / internal

2081

(2030)

1754

 

1551

(1515)

1369

 

902

(900)

981

 

165

(162)

165

 

IEEE-488.1 Mode

0.01 / external

1239

(1200)

1254

 

1018

(990)

1035

 

830

(830)

886

 

163

(160)

163

 

Fast

0.01 / internal

2081

(2030)

1198

(1210)

1551

(1515)

1000

(900)

902

(900)

809

(840)

165

(162)

164

(162)

IEEE-488.2 Mode

0.01 / external

1239

(1200)

1079

(1050)

1018

(990)

916

(835)

830

(830)

756

(780)

163

(160)

162

(160)

Medium

0.10 / internal

510

(433)

509

(433)

470

(405)

470

(410)

389

(343)

388

(343)

133

(126)

132

(126)

IEEE-488.2 Mode

0.10 / external

438

(380)

438

(380)

409

(360)

409

(365)

374

(333)

374

(333)

131

(125)

131

(125)

Normal

1.00 / internal

59

(49)

59

(49)

58

(48)

58

(48)

56

(47)

56

(47)

44

(38)

44

(38)

IEEE-488.2 Mode

1.00 / external

57

(48)

57

(48)

57

(48)

57

(47)

56

(47)

56

(47)

44

(38)

44

(38)

Single Reading Operation Reading Rates (rdg./second) for 60 Hz (50 Hz)

Speed

NPLC/Trigger Origin

Measure To GPIB

Source-Measure5 To GPIB

Source-Measure Pass/Fail Test4, 5 To GPIB

Fast (488.1)

0.01 / internal

537

 

140

 

135

 

Fast (488.2)

0.01 / internal

256

(256)

79

(83)

79

(83)

Medium (488.2)

0.10 / internal

167

(166)

72

(70)

69

(70)

Normal (488.2)

1.00 / internal

49

(42)

34

(31)

35

(30)

Component for 60 Hz (50 Hz) 4, 6

Speed

NPLC/Trigger Origin

Measure To GPIB

Source Pass/Fail Test

Source-Measure Pass/Fail Test5, 7To GPIB

Fast

0.01 / external

1.04 ms

(1.08 ms)

0.5 ms

(0.5 ms)

4.82 ms

(5.3 ms)

Medium

0.10 / external

2.55 ms

(2.9 ms)

0.5 ms

(0.5 ms)

6.27 ms

(7.1 ms)

Normal

1.00 / external

17.53 ms

(20.9 ms)

0.5 ms

(0.5 ms)

21.31 ms

(25.0 ms)

NOTES

  1. Reading rates applicable for voltage or current measurements. Auto zero off, autorange off, filter off, display off, trigger delay = 0, and binary reading format.
  2. Purely resistive lead. 1 µA and 10 µA ranges <65 ms.
  3. 1000 point sweep was characterized with the source on a fixed range.
  4. Pass/Fail test performed using one high limit and one low math limit.
  5. Includes time to re-program source to a new level before making ­measurement.
  6. Time from falling edge of START OF TEST signal to falling edge of end of test signal.
  7. Command processing time of :SOURce:VOLTage|CURRent:TRIGgered <nrf> command not included.

General Specifications


Noise Rejection —

 

NPLC

NMRR

CMRR

Fast

0.01

80 dB

Medium

0.1

80 dB

Slow

1

60 dB

100 dB1

1 Except lowest 2 current ranges = 90dB.


Load Impedance — Stable into 20,000 pF typical.


Common Mode Voltage — 250 V DC (40V DC for 2440).


Common Mode Isolation — >109Ω, <1000pF.


Overrange — 105% of range, source and measure.


Max. Voltage Drop Between Input/Output and Sense Terminals — 5 V.


Max. Sense Lead Resistance — 1 MΩ for rated accuracy.


Sense Input Impedance — >1010Ω.


Guard Offset Voltage — <150 µV, typical (300 µV for 2440).


Source Output Modes — Fixed DC levelMemory List (mixed function)Stair (linear and log)


Memory Buffer — 5,000 readings @ 5 digits (two 2,500 point buffers). Includes selected measured value(s) and time stamp. Lithium battery ­backup (3 yr+ battery life).


Source Memory List — 100 points max.


Programmability — IEEE-488 (SCPI-1995.0), RS-232, 5 user-definable power-up states plus factory default and *RST.


Digital Interface

Output Enable — Active low input.

Handler Interface — Start of test, end of test, 3 category bits. +5 V @ 300 mA supply. Not available on 2401.

Digital I/O — 1 trigger input, 4 TTL/Relay Drive outputs (33 V @ 500 mA, diode clamped). Not available on 2401.


Power Supply — 100 V to 240 V rms, 50–60 Hz (automatically detected at power up). 2400, 2401: 190 VA. 2410: 210 VA. 2420: 220 VA. 2440: 240VA.


Cooling — 2401: Convection. 2410, 2420, 2440: Forced air, variable speed.


EMC — Conforms to European Union Directive 89/336/EEC, EN 61326-1.


Safety — Conforms to European Union Low Voltage Directive. 2400 and 2401 UL listed to UL 61010-1:2012 and UL 61010-2-30:2012.


Vibration — MIL-PRF-28800F Class 3 Random.


Warm-Up — 1 hour to rated accuracies.


Dimensions — 89 mm high × 213 mm wide × 370 mm deep (3½ in × 838 in × 14916 in). Bench Configuration (with handle and feet): 104 mm high × 238 mm wide × 370 mm deep (418 in × 938 in × 14916 in).


Weight — 3.21 kg (7.08 lbs.) (2440: 4.1kg, 9.0 lbs).


Environment — Operating: 0°–50°C, 70% R.H. up to 35°C. Derate 3% R.H./°C, 35°–50°C. Storage: –25°C to 65°C.

Supplied Accessories


Test Leads


LabVIEW Driver — Software Driver ­(downloadable)


LabTracer — Software ­(downloadable)

Available Accessories

Test Leads and Probes

1754 2-Wire Universal 10-Piece Test Lead Kit


5804 Kelvin (4-Wire) Universal 10-Piece Test Lead Kit


5805 Kelvin (4-Wire) Spring-Loaded Probes


5808 Low Cost Single-pin Kelvin Probe Set


5809 Low Cost Kelvin Clip Lead Set


8607 2-Wire, 1000 V Banana Cables, 1 m (3.3 ft)


CA-18-1 Shielded Dual Banana Cable, 1.2 m (4 ft)

Cables/Adapters

7007-1 Shielded GPIB Cable, 1 m (3.3 ft)


7007-2 Shielded GPIB Cable, 2 m (6.6 ft)


7009-5 RS-232 Cable


8620 Shorting Plug

Communication Interface

KPCI-488LPA — IEEE-488 Interface/Controller for the PCI Bus


KUSB-488B — IEEE-488 USB-to-GPIB Interface Adapter

Triggering and Control

2499-DIGIO — Digital I/O Expander Assembly (not for 2401)


8501-1 Trigger Link Cable, DIN-to-DIN, 1m (3.3 ft)


8501-2 Trigger Link Cable, DIN-to-DIN, 2m (6.6 ft)


8502 Trigger Link to BNC Breakout Box


8503 Trigger Link Cable, DIN-to-Dual BNC, 1m (3.3 ft)


8505 Male to 2-Female Y-DIN Cable for Trigger Link

Rack Mount Kits

4288-1 Single Fixed Rack Mount Kit


4288-2 Dual Fixed Rack Mount Kit


4288-4 Dual Fixed Rack Mount Kit


4288-5 Shelf Type Side by Side Rack Mounting Kit


4288-9 Dual Fixed Rack Mounting Kit

Available Services


2400-3Y-EW — 1-year factory warranty extended to 3 years from date of shipment


2401-3Y-EW — 1-year factory warranty extended to 3 years from date of shipment


2410-3Y-EW — 1-year factory warranty extended to 3 years from date of shipment


2420-3Y-EW — 1-year factory warranty extended to 3 years from date of shipment


2440-3Y-EW — 1-year factory warranty extended to 3 years from date of shipment


C/2400-3Y-ISO — 3 (ISO-17025 accredited) calibrations within 3 years of purchase for 2400, 2400-LV*


C/2401-3Y-ISO — 3 (ISO-17025 accredited) calibrations within 3 years of purchase for 2401*


C/2410-3Y-ISO — 3 (ISO-17025 accredited) calibrations within 3 years of purchase for 2410*


C/2420-3Y-ISO — 3 (ISO-17025 accredited) calibrations within 3 years of purchase for 2420*


C/2440-3Y-ISO — 3 (ISO-17025 accredited) calibrations within 3 years of purchase for 2440*


TRN-2400-1-C — Course: Unleashing the Power of Your SourceMeter SMU Instrument


*Not available in all countries

Ordering Information


2400 200V, 1A, 20W SourceMeter SMU Instrument


2401 20V, 1A, 20W SourceMeter SMU Instrument


2410 1100V, 1A, 20W SourceMeter SMU Instrument


2420 60V, 3A, 60W SourceMeter SMU Instrument


2440 40V, 5A, 50W SourceMeter SMU Instrument

Warranty Information


Warranty Summary — This section summarizes the warranties of the Series 2400. For complete warranty information, refer to the Series 2400 Reference Manual. Any portion of the product that is not manufactured by Keithley is not covered by this warranty and Keithley will have no duty to enforce any other manufacturer’s warranties. Hardware Warranty Keithley Instruments, Inc. warrants the Keithley manufactured portion of the hardware for a period of one year from defects in materials or workmanship; provided that such defect has not been caused by use of the Keithley hardware which is not in accordance with the hardware instructions. The warranty does not apply upon any modification of Keithley hardware made by the customer or operation of the hardware outside the environmental specifications.


Software Warranty — Keithley warrants that the Keithley produced portion of the software or firmware will conform in all material respects with the published specifications for a period of ninety (90) days; provided the software is used on the product for which it is intended in accordance with the software instructions. Keithley does not warrant that operation of the software will be uninterrupted or error-free, or that the software will be adequate for the customer’s intended application. The warranty does not apply upon any modification of the software made by the customer.