6240B DC voltage current source/monitor

Not distributed in North America & Asia

6240B DC voltage current source/monitor
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6240B DC voltage current source/monitor
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6240B DC voltage current source/monitor
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6240B DC voltage current source/monitor, Front view 6240B DC voltage current source/monitor, Front view 6240B DC voltage current source/monitor, Back view

Key facts

  • 0 to ±15 V / 0 to ±4 A (1A for DC)
  • High-speed response pulse source
  • High resolution source (10 µV / 1 nA) and measurement (1 µV / 100 pA) resolution
  • Low-resistance measurement up to 0.25 µΩ resolution
  • Sink-enabled bipolar output
  • ADCMT Logo
  • Radome Pulse Sweep Logo

Brief description

6240B is a DC voltage and current source/monitor with high-performance features including a source display resolution of 4½ digits, measuring display resolution of 5½ digits and base accuracy of 0.02 %. It can operate as a voltage source or as a real current source in DC, sweeped or pulsed operation. High resolution and extended protection tools make it perfect for testing sensitive electronic components. A low-resistance measurement mode cancels thermal electromotive force for conductive materials.

Features & benefits

Voltage and current source mode

Source and measurement functions

The 6240B can be used as a power source in a wide range of applications such as for evaluation purposes in research and development of semiconductors and other electronic components or for characteristic test systems on a production line. Current, voltage and resistance measurements can be made in voltage source mode and in current source mode.

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Several source modes

DC, pulse, DC sweep and pulse sweep source modes

The 6240B has four source modes – DC, pulse, DC sweep and pulse sweep. The sweeps can be realized as four sweep types: fixed, linear, random and two-slope linear. The two-slope linear sweep is useful for non-linear parameter tests. The unit can generate minimal pulse widths down to 50 µs and minimal periods down to 500 µs.
The 6240B can operate as a voltage source or as real current source. Like any SMU, the unit also offers precise measurement capabilities.

Sweep and pulse sweep capabilities
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Sweep and pulse sweep capabilities

Fast response and low noise

Linear operation concept

The 6240B features low noise combined with fast output response behavior. A 0 V to 10 V voltage step can typically be realized within 30 µs (0 % to 90 % rise). The output noise there is about 2.4 mV (peak-to-peak) for a measurement bandwidth of DC to 20 MHz. The unit can be operated in two different output response modes (fast or slow). Its low frequency ripple is below 500 µV and it has very low switching noise for range-crossing sweeps. 4-wire and 2-wire operation is possible.

Fast response combined with low noise
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Fast response combined with low noise

High DUT protection

Precise and fast limiters

The 6240B has precise and fast acting high-resolution-setting limiters: current limiters for voltage operation mode and voltage limiters for current operation mode. Based on its individual high and low limiter setting capability, it is possible to prevent overload or reverse polarity conditions at DUTs, which are usually operated in current mode and will switch off after reaching a specific voltage level. This protects against latch-up effects.

Individual settings of HI/LO limiters
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Individual settings of HI/LO limiters

Low-resistance measurement

Pulsed current measurement for low-resistance connector measurements to eliminate the affects of DUT self-heating and cancel out thermal EMF

The 6240B achieves low-resistance measurement without being affected by self-heating of DUTs by using pulse current application to deliver more precise measured values with few errors. The 6240B is also capable of high-precision contact resistance measurement that cancels thermal EMF generated on the contact surfaces of metals. The resolution for low-resistance measurements is down to 0.25 µΩ.

Low-resistance measurement of conductive materials
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Low-resistance measurement of conductive materials

Suspend function with HiZ/LoZ

The 6240B supports three different output OFF states: STBY (output relay OFF), HiZ (output relay ON, high resistance state), LoZ (output relay ON, low resistance state). This eliminates unnecessary ON/OFF relay operations, which increases the average life span. Setting a specific suspend voltage other than 0 V prevents transitional current suctions occuring at connected buffer devices, e.g. batteries.

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Extended measurement

Fast, precise, convenient analysis

  • Voltage, current, resistance measurements
  • ­Fast sample and waveform buffer (8000 readings)
  • ­Calculation functions (MIN, MAX, AVE, TOTAL, scaling)
  • ­Fast comparator calculations with output signal (HI, LO, GO)
  • ­Null calculation
  • ­Sample & hold measurements with 100 µs integration time

Different measurement functions; sample & hold measurements; different measurement timing
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Different measurement functions; sample & hold measurements; different measurement timing

Perfect system integration

Convenient trigger and synchronization capabilities

The 6240BA allows precise source/measurement timing. Pulse width, pulse period, source delay, measurement window and measurement delay can be precisely defined with up to 1 µsec resolution. Other hardware trigger/sync signals allow interoperability with other instruments in time-critical applications. It is possible to cascade multiple units even under pulsed conditions, e.g. to increase the output power. GPIB and USB interfaces are standard.

Precise source/measurement timing
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Precise source/measurement timing

Sourcing capability
Number of channels 1
Output method bipolar
Max. output power 15 W
Operation modes (DUT independent) CV with current limiter / CC with voltage limiter
Output waveforms DC, DC Sweep, Pulse, Pulse Sweep, Pulse RM, Fixed, Linear, 2-slope linear, Arbitrary
Output OFF status standby / suspend HiZ / suspend LoZ
Sinking capability
Neg. output current continuous (pulsed) -1(4) A
SMU capability
Sourcing voltage
Max. output voltage ±15(10) V
Source ranges voltage 15 / 3 / 0.3 V
Source resolution voltages 1000 / 100 / 10 µV
Basic accuracy voltage ±0.02 % of setting
1-day stability voltage ±0.01 % of setting
Temperature coefficient voltage (0°to 50°) ±15 ppm of setting/°C
Linearity ±3 digits
Line regulation ±0.003 % of range
Load regulation ±0.003 % of range
Noise voltage (20 MHz/100 Hz) 4 / 0.05 mVpk-pk
Sourcing voltage timing
Settling time at full scale voltage change 300 / 700 µs
Sourcing current
Max. output current continuous (pulsed) ±1(4) A
Source ranges current 4000 / 1000 / 300 / 30 / 3 / 0.3 / 0.03 mA
Source resolution current 200 / 100 / 10 / 1 / 0.1 / 0.01 / 0.001 µA
Basic accuracy current ±0.03 % of setting
Noise current (20 MHz/100 Hz) 10 / 0.00001 mApk-pk
Sourcing current timing
Settling time at full scale current change 450 / 700 µs
Limiter capabilities
Voltage limiter resolution 10 / 1 / 0.1 mV
Voltage limiter basic accuracy 0.05 %
Current limiter resolution 1000 / 1000 / 100 / 10 / 1 / 0.1 / 0.01 µA
Current limiter basic accuracy 0.045 % of setting
Limiter HI-LO coupling balanced / individual
Measure voltage
Measure ranges voltage 15 / 3 / 0.3 V
Measure resolution voltage 100 / 10 / 1 µV
Basic accuracy voltage ±0.02 % of reading
1-day stability voltage ±0.008 % of reading
Temperature coefficient voltage (0°to 50°) ±20 ppm of reading/ °C
Measure input resistance voltage > 1 GΩ
Measure current
Measure ranges current 4000 / 1000 / 300 / 30 / 3 / 0.3 / 0.03 mA
Measure resolution current 10 / 10 / 1 / 0.1 / 0.01 / 0.001 / 0.0001 µA
Basic accuracy current ±0.03 % of reading
1-day stability current ±0.01 % of reading
Temperature coefficient voltage (0° to 50°) ±15 ppm of reading/ °C
Measure resistance
Resist. meas. max. value/resol. 750 MΩ / 0.25 µΩ
Waveform output
Sweep types Fixed / linear / 2-slope linear / arbitrary
Waveform memory capacity 8000
Minimum pulse width 50 µs
Maximum pulse width 60 sec
Minimum period 500 µs
Maximum period 60 sec
Minimum time resolution 1 µs
Data acquisition system
Data memory capacity 8000
Integration times 0.1 / 0.5 / 1 / 10 / 16.7 / 20 / 100 / 200 ms; S&H
CMRR @ 1PLC 120 dB
NMRR @ 1 PLC 60 dB
Calculation functions Null / Min / Max / Ave / Total / Hi / Lo / Go / Scaling
Ext. Control signals Trigger-In , Complete-Out/Sync-Out, Interlock/Operate-In/Operate-Out
Interfaces USB, GPIB
Special feature
Special feature Low-Resist. Measurement, Thermal EMF cancellation mode
Dimensions (W x H x D) 212 mm x 88 mm x 400 mm

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