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Models 2601B, 2602B, and 2604B System SourceMeter Instrument Specifications


SPECIFICATION CONDITIONS

This document contains specifications and supplemental information for the Models 2601B, 2602B, and 2604B System SourceMeter® instrument. Specifications are the standards against which the Models 2601B, 2602B, and 2604B are tested. Upon leaving the factory, the Models 2601B, 2602B, and 2604B meet these specifications. Supplemental and typical values are nonwarranted, apply at 23 °C, and are provided solely as useful information.

Source and measurement accuracies are specified at the Models 2601B, 2602B, and 2604B terminals under these conditions:

  • 18 °C to 28 °C, < 70="" percent="" relative="">
  • After a two-hour warm-up period
  • Speed normal (1 NPLC)
  • A/D autozero enabled
  • Remote sense operation or properly zeroed local operation
  • Calibration period: One year

DC POWER SPECIFICATIONS

Voltage Current
Maximum output power and source/sink limits1 40.4 W maximum
  • ± (40.4 V at 1.0 A, −1.0 A)
  • ± (6.06 V at 3.0 A, −3.0 A)
  • Four-quadrant source or sink operation
40.4 W maximum
  • ± (1.01 A at 40 V, −40 V)
  • ± (3.03 A at 6 V, −6 V)
  • Four-quadrant source or sink operation
  • DC Power Specificatios

    Refer to Pulse characteristics for pulsing details, such as duty cycle and pulse width.

    VOLTAGE ACCURACY SPECIFICATIONS2,3

    Range Source Measure
    Programming resolution Accuracy ± (% reading + volts) Typical noise (peak to peak) 0.1 Hz to 10 Hz Display resolution Accuracy4 ± (% reading + volts)
    100 mV 5 μV 0.02% + 250 μV 20 μV 100 nV 0.015% + 150 μV
    1 V 50 μV 0.02% + 400 μV 50 μV 1 μV 0.015% + 200 μV
    6 V 50 μV 0.02% + 1.8 mV 100 μV 1 μV 0.015% + 1 mV
    40 V 500 μV 0.02% + 12 mV 500 μV 10 μV 0.015% + 8 mV

    CURRENT ACCURACY SPECIFICATIONS2

    Range Source Measure
    Programming resolution Accuracy ± (% reading + amperes) Typical noise (peak to peak) 0.1 Hz to 10 Hz Display resolution Accuracy4 ± (% reading + amperes)
    100 nA 2 pA 0.1% + 100 pA 5 pA 100 fA 0.08% + 100 pA
    1 μA 20 pA 0.03% + 800 pA 25 pA 1 pA 0.025% + 500 pA
    10 μA 200 pA 0.03% + 5 nA 60 pA 10 pA 0.025% + 1.5 nA
    100 μA 2 nA 0.03% + 60 nA 3 nA 100 pA 0.025% + 25 nA
    1 mA 20 nA 0.03% + 300 nA 6 nA 1 nA 0.02% + 200 nA
    10 mA 200 nA 0.03% + 6 μA 200 nA 10 nA 0.02% + 2.5 μA
    100 mA 2 μA 0.03% + 30 μA 600 nA 100 nA 0.02% + 20 μA
    1 A 20 μA 0.05% + 1.8 mA 70 μA 1 μA 0.03% + 1.5 mA
    3 A 20 μA 0.06% + 4 mA 150 μA 1 μA 0.05% + 3.5 mA
    10 A5 200 μA 0.5% + 40 mA N/A 10 μA 0.4% + 25 mA
    NPLC setting 100 mV range 1 V and 40 V ranges 100 nA range 1 μA to 100 mA ranges 1 A to 3 A ranges
    0.1 0.01% 0.01% 0.01% 0.01% 0.01%
    0.01 0.08% 0.07% 0.1% 0.05% 0.05%
    0.001 0.8% 0.6% 1% 0.5% 1.1%

    SUPPLEMENTAL CHARACTERISTICS

    The following specifications are supplemental characteristics that provide additional information about instrument functions and performance. These characteristics are nonwarranted specifications; they describe the typical performance of the Models 2601B, 2602B and 2604B.

    PULSE CHARACTERISTICS

    Pulse region specifications
    Region quadrant diagram Region maximums Maximum pulse width6 Maximum duty cycle7
    1 1 A at 40 V DC, no limit 100%
    1 3 A at 6 V DC, no limit 100%
    2 1.5 A at 40 V 100 ms 25%
    3 5 A at 35 V 4 ms 4%
    4 10 A at 20 V 1.8 ms 1%
    5 5 A at 6 V 10 ms 10%
    Pulse characteristics
    Minimum programmable pulse width6 100 μs
    Note: Minimum pulse width for settled source at a given I/V output and load can be longer than 100 μs.
    Source Value Load Source settling (% of range) Minimum pulse time to settle
    6 V 2 Ω 0.2% 150 μs
    20 V 2 Ω 1% 200 μs
    35 V 7 Ω 0.5% 500 μs
    40 V 27 Ω 0.1% 1.5 ms
    1.5 A 27 Ω 0.1% 1.5 ms
    3 A 2 Ω 0.2% 150 μs
    5 A 7 Ω 0.5% 500 μs
    10 A 2 Ω 0.5% 200 μs
    Pulse width programming resolution 1 μs
    Pulse width programming accuracy ± 5 μs
    Pulse width jitter 2 μs

    ADDITIONAL SOURCE CHARACTERISTICS

    Noise 10 Hz to 20 MHz < 20="" mv="" peak-peak,="">< 3="" mv="">
    6 V range
    Transient response time < 70="" μs="" for="" the="" output="" to="" recover="" to="" within="" 0.1%="" for="" a="" 10%="" to="" 90%="" step="" change="" in="" load="">
    Overshoot Voltage:
    • < ±0.1%="" +="" 10="">
    • Step size = 10% to 90% of range, resistive load, maximum current limit/compliance
    Current:
    • <>
    • Step size = 10% to 90% of range, resistive load
    • See Current source output settling time for additional test conditions
    Range change overshoot Voltage:8
    • < 500="" mv="" +="" 0.1%="" of="" larger="" range="" or="">< 300="" mv="" +="" 0.5%="" of="" larger="">
    • Overshoot into a 100 kΩ load, 20 MHz bandwidth
    Current:9
    • < 300="" mv/rload="" +="" 5%="" of="" larger="">
    Guard offset voltage < 4="">
    Current < 10="" ma="">
    Remote sense operating range10 Maximum voltage between HI and SENSE HI = 3 V
    Maximum voltage between LO and SENSE LO = 3 V
    Voltage output headroom 40 V range: Maximum output voltage = 42 V – (total voltage drop across source leads); maximum 1 Ω source lead
    6 V range: Maximum output voltage = 8 V – (total voltage drop across source leads); maximum 1 Ω source lead
    Overtemperature protection Internally sensed overtemperature condition puts the instrument in standby mode
    Voltage source output settling time Time required to reach within 0.1% of final value after source level command is processed on a fixed range.
    Voltage range Settling time
    100 mV < 50="">
    1 V < 50="">
    6 V < 110="">
    40 V13 < 150="">
    Current source output settling time Time required to reach within 0.1% of final value after source level command is processed on a fixed range
    Values below for IOUT × RLOAD = 1 V
    Current range Settling time
    100 nA < 20="">
    1 μA < 2="">
    10 μA < 500="">
    100 μA < 150="">
    1 mA < 100="">
    1 A to 10 mA < 80="" μs="">LOAD > 6 Ω)
    3 A < 80="" μs="" (current="">< 2.5="" a,="">LOAD > 2 Ω)

    ADDITIONAL MEASUREMENT CHARACTERISTICS

    Contact check specifications14, 15 Speed Maximum measurement time to memory for 60 Hz (50 Hz) Accuracy (1 year) 23 °C ± 5 °C ± (% reading + ohms)
    Fast 1.1 ms (1.2 ms) 5% + 10 Ω
    Medium 4.1 ms (5 ms) 5% + 1 Ω
    Slow 36 ms (42 ms) 5% + 0.3 Ω
    Current measure settling time16 Time required to reach within 0.1% of final value after source level command is processed on a fixed range
    Values below for VOUT = 1 V
    Current range Settling time
    1 mA < 100="">
    Input impedance > 10 GΩ

    ADDITIONAL CHARACTERISTICS

    Maximum load impedance Normal mode
    10 nF
    High-capacitance mode
    50 μF
    Common mode voltage 250 V DC
    Common mode isolation > 1 GΩ
    < 4500="">
    Sense high input impedance > 10 GΩ
    Maximum sense lead resistance 1 kΩ for rated accuracy
    Overrange 101% of source range
    102% of measure range

    HIGH CAPACITANCE MODE17,18,19

    Accuracy specifications Accuracy specifications are applicable in both Normal and High Capacitance Modes.
    Voltage source output settling time Time required to reach within 0.1% of final value after source level command is processed on a fixed range.
    Current limit = 1 A
    Voltage range Settling time with CLOAD = 4.7 μF
    100 mV < 200="">
    1 V < 200="">
    6 V < 200="">
    40 V < 7="">
    Current measure settling time Time required to reach within 0.1% of final value after source level command is processed on a fixed range.
    Values below for VOUT = 1 V unless noted
    Current range Settling time
    1 μA < 230="">
    10 μA < 230="">
    100 μA < 3="">
    1 mA < 3="">
    100 mA and 10 mA < 100="">
    3 A and 1 A < 120="" μs="">LOAD > 2 Ω)
    Capacitor leakage performance using the KIHighC factory script20 200 ms at 50 nA
    • Load = 5 μF in parallel with 10 MΩ
    • Test: 5 V step and measure
    Mode change delay 200 ms at 50 nA
      Current ranges of 100 μA and above:
      • 11 ms delay for both in and out of High Capacitance Mode
      Current ranges below 100 μA:
      • 250 ms delay into High Capacitance Mode
      • 11 ms delay out of High Capacitance Mode
    Voltmeter input impedance 10 GΩ in parallel with 3300 pF
    Noise 10 Hz to 20 MHz < 30="" mv="" peak-peak="">
    • 6 V range
    Range change overshoot Voltage:
    • < 400="" mv="" +="" 0.1%="" of="" larger="">
    • Overshoot into a 100 kΩ load, 20 MHz bandwidth

    MEASUREMENT SPEED CHARACTERISTICS21,22

    Maximum sweep operation rates (operations per second) for 60 Hz (50 Hz):

    A/D converter speed Trigger origin Measure to memory (using user scripts) Measure to GPIB (using user scripts) Source measure to memory (using user scripts) Source measure to GPIB (using user scripts) Source measure to memory (using sweep API) Source measure to GPIB (using sweep API)
    0.001 NPLC Internal 20000 (20000) 9800 (9800) 7000 (7000) 6200 (6200) 12000 (12000) 5900 (5900)
    0.001 NPLC Digital I/O 8100 (8100) 7100 (7100) 5500 (5500) 5100 (5100) 11200 (11200) 5700 (5700)
    0.01 NPLC Internal 4900 (4000) 3900 (3400) 3400 (3000) 3200 (2900) 4200 (3700) 4000 (3500)
    0.01 NPLC Digital I/O 3500 (3100) 3400 (3000) 3000 (2700) 2900 (2600) 4150 (3650) 3800 (3400)
    0.1 NPLC Internal 580 (480) 560 (470) 550 (465) 550 (460) 560 (470) 545 (460)
    0.1 NPLC Digital I/O 550 (460) 550 (460) 540 (450) 540 (450) 560 (470) 545 (460)
    1.0 NPLC Internal 59 (49) 59 (49) 59 (49) 59 (49) 59 (49) 59 (49)
    1.0 NPLC Digital I/O 59 (49) 59 (49) 59 (49) 59 (49) 59 (49) 59 (49)

    Maximum single measurement rates (operations per second) for 60 Hz (50 Hz):

    A/D converter speed Trigger origin Measure to GPIB Source measure to GPIB Source measure pass/fail to GPIB
    0.001 NPLC Internal 1900 (1800) 1400 (1400) 1400 (1400)
    0.01 NPLC Internal 1450 (1400) 1200 (1200) 1100 (1100)
    0.1 NPLC Internal 450 (390) 425 (370) 425 (375)
    1.0 NPLC Internal 58 (48) 57 (48) 57 (48)
    Maximum measurement range change rate < 7000="" per="" second="" for="">< 10="" μa.="" when="" changing="" to="" or="" from="" a="" range="" ≥="" 1="" a,="" maximum="" rate="" is=""> 2200/second.
    Maximum source range change rate > 400 per second > 10 μA. When changing to or from a range ≥ 1 A, maximum rate is > 190/second.
    Maximum source function change rate > 1000 per second
    Command processing time < 1="" ms="">
    • Maximum time required for the output to begin to change after receiving the smua.source.levelv or smua.source.leveli command.

    TRIGGERING AND SYNCHRONIZATION CHARACTERISTICS

    Triggering

    Trigger in to trigger out 0.5 μs
    Trigger in to source change23 10 μs
    Trigger timer accuracy ±2 μs
    Source change23 after LXI trigger 280 μs

    Synchronization

    Multi-node synchronized source change23 < 0.5="">
    Single-node synchronized source change23 < 0.5="">

    SUPPLEMENTAL INFORMATION

    Front-panel interface Two-line vacuum fluorescent display (VFD) with keypad and navigation wheel
    Display
    • Show error messages and user-defined messages
    • Display source and limit settings
    • Show current and voltage measurements
    • View measurements stored in dedicated reading buffers
    Keypad operations
    • Change host interface settings
    • Save and restore instrument setups
    • Load and run factory and user-defined test scripts that prompt for input and send results to the display
    • Store measurements into dedicated reading buffers
    Programming Embedded Test Script Processor (TSP®) accessible from any host interface; responds to high-speed test scripts comprised of remote commands and statements (for example, branching, looping, and math); able to execute test scripts stored in memory without host intervention.
    Minimum user memory available 16 MB (approximately 250,000 lines of TSP code)
    Reading buffers Nonvolatile memory uses dedicated storage areas reserved for measurement data. Reading buffers are arrays of measurement elements. Each element can store the following items:
    • Measurement
    • Source setting (at the time the measurement was taken)
    • Measurement status
    • Range information
    • Timestamp
    Reading buffers can be filled using the front-panel STORE key and retrieved using the RECALL key or host interface.
    Buffer size, with timestamp and source setting > 60,000 samples
    Buffer size, without timestamp and source setting > 140,000 samples

    TIMING

    Timer Free-running 47-bit counter with 1 MHz clock input. Reset each time instrument power is turned on. If the instrument is not turned off, the timer is automatically reset to zero (0) every four years.
    Timestamp TIMER value is automatically saved when each measurement is triggered
    Resolution 1 μs
    Timestamp accuracy ±100 ppm

    GENERAL SPECIFICATIONS

    IEEE-488 IEEE Std 488.1 compliant. Supports IEEE Std 488.2 common commands and status model topology
    RS-232
    • Baud rates from 300 bps to 115,200 bps
    • Programmable number of data bits, parity type, and flow control (RTS/CTS hardware or none)
    • When not programmed as the active host interface, the Models 2601B, 2602B and 2604B can use the RS-232 interface to control other instruments
    Ethernet RJ-45 connector, LXI version 1.4 Core 2011, 10/100BaseT, Auto-MDIX
    LXI compliance LXI version 1.4 Core 2011
    Expansion interface24
    • The TSP-Link® expansion interface allows TSP-enabled instruments to trigger and communicate with each other
    • Cable type: Category 5e or higher LAN crossover cable
    • Three meter (9.84 ft) maximum between each TSP-enabled instrument
    • A maximum of 32 TSP-Link nodes can be interconnected
    • Each source-measure instrument uses one TSP-Link node
    USB Control (Rear) USB 2.0 Device: USB-TMC488 protocol
    USB File System (Front) USB 2.0 Host: Mass storage class device
    Power supply 100 V ac to 240 V ac, 50 Hz or 60 Hz (autosensing), 240 VA maximum
    Cooling Forced air; side intake and rear exhaust; one side must be unobstructed when rack mounted
    Warranty 1 year
    EMC Conforms to European Union EMC Directive
    Safety NRTL listed to UL61010-1:2008 and CSA C22.2 No. 61010-1
    Conforms to European Union Low Voltage Directive
    Environment For indoor use only
    Altitude: Maximum 2000 m (6562 ft) above sea level
    Operating: 0 °C to 50 °C, 70% relative humidity up to 35 °C. Derate 3% relative humidity/°C, 35 °C to 50 °C
    Storage: -25 °C to 65 °C
    Dimensions Rack mount: 89 mm high × 213 mm wide × 460 mm deep (3.5 in. × 8.4 in. × 17.5 in.)
    Bench configuration (with handle and feet): 104 mm high × 238 mm wide × 460 mm deep (4.1 in. × 9.4 in. × 17.5 in.)
    Weight 2601B: 4.75 kg (10.4 lb)
    2602B and 2604B: 5.50 kg (12.0 lb)
    Digital I/O interface25
    Direct Measurements
    Connector: 25-pin female D
    Input/output pins: 14 open drain I/O bits
    Absolute maximum input voltage: 5.25 V
    Absolute minimum input voltage: −0.25 V
    Maximum logic low input voltage: 0.7 V, +850 μA maximum
    Minimum logic high input voltage: 2.1 V, +570 μA
    Maximum source current (flowing out of digital I/O bit): +960 μA
    Maximum sink current at maximum logic low voltage (0.7 ): −5.0 mA
    Absolute maximum sink current (flowing into digital I/O pin: −11 mA
    5 V power supply pins: Limited to 250 mA total, solid-state fuse protected
    Output Enable: Active high input pulled down internally to ground with a 10 kΩ resistor; when the output enable input function has been activated, each SourceMeter channel will not turn on unless the output enable pin is driven to > 2.1 V
    (nominal current = 2.1 V / 10 kΩ = 210 μA)

    1 Full power source operation regardless of load to 30 °C ambient temperature. Above 30 °C or power sink operation, refer to “Operating Boundaries” in the Series 2600B System SourceMeter Instrument Reference Manual for additional power derating information.
    2 For temperatures 0 °C to 18 °C and 28 °C to 50 °C, accuracy is degraded by ± (0.15 × accuracy specification)/°C. High Capacitance Mode accuracy is applicable at 23 °C ± 5 °C.
    3 Add 50 μV to source accuracy specifications per volt of HI lead drop.
    4 Derate accuracy specification for NPLC setting < 1="" by="" increasing="" the="" error="" term.="" add="" appropriate="" typical="" percent="" of="" reading="" term="" for="" resistive="" loads="" using="" the="" table="">
    5 10 A range is accessible in pulse mode only. Accuracy specifications for 10 A range are typical.
    6 Times measured from the start of the pulse to the start of the off-time; see figure below.
    Pulse measurement 7 Thermally limited in sink mode (quadrants 2 and 4) and ambient temperatures above 30 °C. See power equations in the Series 2600B System SourceMeter Instrument Reference Manual for more information.
    8 Add 180 mV for the 6 V to 20 V change (500 mA).
    9 With source settling set to SETTLE_SMOOTH_100NA.
    10 Add 50 μV to source accuracy specifications per volt of HI lead drop.
    11 For sink operation (quadrants II and IV) without sink mode enabled, add 10% of compliance range and ±0.02% of limit settling to the corresponding voltage source accuracy specifications. For 100 mV range add an additional 60 mV of uncertainty. Specifications apply with sink mode enabled.
    12 For sink operation (quadrants II and IV) without sink mode enabled, add 0.06% of limit range to the corresponding current limit accuracy specifications. Specifications apply with sink mode enabled.
    13 Add 150 μs when measuring on the 1 A range.
    14 Includes measurement of SENSE HI to HI and SENSE LO to LO contact resistances.
    15 Contact check is not available with the Model 2604B.
    16 Compliance equal to 100 mA
    17 High Capacitance Mode specifications are for dc measurements only.
    18 100 nA range is not available in High Capacitance Mode.
    19 High Capacitance Mode utilizes locked ranges. Autorange is disabled.
    20 Part of KI Factory scripts. See the Series 2600B System SourceMeter Instrument Reference Manual for details
    21 Tests performed with a Model 2602B using the following equipment: Computer hardware (Intel® Pentium® 4 2.4 GHz, 2 GB RAM, National Instruments PCI-GPIB); driver (NI-488.2 Version 2.2 PCI-GPIB); software (Microsoft® Windows® XP, Microsoft® Visual Studio® 2010, VISA version 4.1).
    22 Exclude current measurement ranges less than 1 mA.
    23 Fixed source range with no polarity change.
    24 TSP-Link is not available with the Model 2604B.
    25 The Digital I/O feature is not available with the Model 2604B. Only +5 V, GND and INTERLOCK pins are available with the Model 2604B