Keysight B2980A Series
Femto/Picoammeter and
Electrometer/High Resistance Meter
Data Sheet
The world’s only graphical
Picoammeter/Electrometer
02 | Keysight | B2980A Series Femto/Picoammeter and Electrometer/High Resistance Meter - Data Sheet
Product Overview
Keysight B2980A Series of Femto/Picoammeters and Electrometers/High Resistance Meters not only
offer best-in-class measurement performance, but also provide unprecedented features to maximize your
A) minimum
Both the Femto/Picoammeter and Electrometer have battery powered versions to eliminate AC power
capabilities, the B2980A series has easy-to-use and convenient measurement assist functions that permit
users with limited or no electrical engineering training to perform complicated electrical characterization
Model Femto/Picoammeter
Electrometer/
High Resistance Meter
B2981A B2983A B2985A B2987A
Measurement resolution 6½ digits 6½ digits 6½ digits 6½ digits
Current measurement 0.01 fA - 20 mA 0.01 fA - 20 mA 0.01 fA - 20 mA 0.01 fA - 20 mA
Minimum range 2 pA 2 pA 2 pA 2 pA
Resistance measurement
Voltage measurement
Input resistance
Charge measurement
Temperature measurement
Humidity measurement
Voltage source Up to ±1,000 V Up to ±1,000 V
Minimum resolution
Maximum reading rate 20,000 rdg/s 20,000 rdg/s 20,000 rdg/s 20,000 rdg/s
Battery operation
B2980A Series Key Features
– A) minimum measurement resolution and 2 pA to 20 mA current
–
– High speed reading rate up to 20,000 rdg/s
– Battery operation models for line noise free measurements
– 2
– 2
– 2
– 2
– 2
– 2
–
– Easy-to-use auto navigation to select optimal range and aperture
–
–
–
– Free PC control software
Application examples
–
electrochemical, ferroelectric materials, graphene, metals, organic materials, nano-
–
–
Battery Operation
AC Power Line Noise from
Measurements
Time Domain View (Roll View)
Enables Capture of Transient
Signal Effects and Selection of
Desired Measurement Data Real-time Histogram Provides
Quick Statistical Analysis of
Measurement Data
Test Setup Integrity Checking
Function and Dedicated
Accessories Ensure Maximum
Measurement Accuracy
Best-in-class 2 pA to 20 mA
Current Measurement Ranges
and Internal 1,000 V Sourcing
Capability Ensure Accurate 0.01
fA and 10 PMeasurements
0.01 fA
digit
Battery
Eliminates
important?
characterization applications
in both its femto/picoammeter
perform precise and detailed
picoamme ters and electrometers.
1 fA
1 pA
1 nA
1 A
1 mA
1 A
10 A
DMM
Conventional
Picoammeter
B2981A / B2983A
Femto/Picoammeter
Conventional
Electrometer
B2985A / B2987A
Electrometer
Typical current
measurement ranges
1 B2983A and B2987A
2 B2985A and B2987A
with other unique features to solve previously intractable
measurement challenges
the real-time histogram feature
All low-level measurements carry with them a degree of statistical uncertainty due to
How fast can the B2980A
series capture data?
the integration setting, which is typ
power line noise from affecting the
responses. The example below com
pares the data sampling capability
Overhead
Aperture
Measured level
Measured level
Measured level
Aperture
Aperture
Aperture
Aperture
Aperture
Aperture
Aperture
Aperture
Aperture
Aperture
Aperture
Aperture
Overhead
Original waveform
Conventional instrument
Keysight B2980A series
Overhead
transient response.
RUN
RUN
RUN
RUN
When should I take the measurement data
?
meric displays often exhibit instability in
Time domain view (Roll View) Data recorded up to 100,000 points
How does the measurement
result distribute?
-
tinuously updates the mean and sigma, enabling you to debug your measurement setup
-
operating conditions, and they also automatically save your measured data and measure-
How much lower is the
electrometers. The graph shown
make both lower noise and faster
made between these two goals.
triaxial cables superior?
applications. Keysight triaxial cables
which minimizes the triboelectric
ity generated by friction at these
Keysight triaxial cables are largely
of this triaxial cable.
0
2
4
6
8
10
12
14
16
18
B2980A A B C
Normalized RMS noise
Normalized 2 nA range RMS noise
0.1 PLC, 3 m triaxial cable
A: High-end electrometer
B: Picoammeter with V source
C: Digital electrometer (3 nA range)
expertise.
Histogram View On Meter View
Available BINS: 10, 20, 40 and 100
100 BINS
40 BINS 20 BINS 10 BINS
Battery charge
staus indicator
Battery
operation
indicator
The battery is automatically charged
when connected to AC power
cabling complexities
instability, including incorrect cabling, poor cable quality and improper guarding; however,
allows you to compare the noise level of the instrument with no cables connected against
-
dard deviation of different setup elements side by side, you can easily determine the quality
How much faster is the
time?
the time it takes to reach 10% of
shown below.
± 0.1 % of
final value
Final
value
Conventional
electrometer’s
settling to 0.1 %
B2980A
settling to 0.1%
Time
Measured data
Case,
Shield
Cable A Cable B
Connector A Connector B
Take out DUT /
sample before
start checking
Cable A
Cable A Cable B
Expected
noise level
with Cable A
Unexpected
noise level
with Cable B !
NOISE
Noise source finally isolated
Original
setup
Example showing how to use the
Setup Integrity Checker
0
1
2
3
4
5
6
7
10% of final value 0.1% of final value
Settling time [s]
20 pA range settling time
2 V step, 100 G, 1 PLC
B2980A Conventional electrometer A
The B2980A series is
optimized for fast 0.1 %
settling time.
-
Measurement assist functions reduce low-level measurement challenges
Selecting the appropriate range and aperture time for low-level measurements is not always
straightforward, since these settings are affected by both target device or sample character-
ment range. As shown below, it has
engineers and researchers to make
ized settings.
Aperture time (Integration time)
Long
Measurement range
High
Normal Stable
Quick
Aperture time (Integration time)
Long
Measurement range
High
Normal Stable
Quick
Coarse Coarse
Fine Fine
Current
Measurement
Voltage
Measurement
Resistance
Measurement
Charge
Measurement
20 mA 20 V 1 P 2 C
2 mA 2 V 100 T 200 nC
200 A 10 T 20 nC
20 A 1 T 2 nC
2 A 100 G
200 nA 10 G
20 nA 1 G
2 nA 100 M
200 pA 10 M
20 pA 1 M
2 pA
+
Pressing the Home
key automatically
sets the most
appropriate range
and speed at any
time
The “Save” and “Recall”
keys located below the
rotary knob enable you
to instantly save and
recall all test setup
parameters to/from one
of five available storage
buffers.
08 | Keysight | B2980A Series Femto/Picoammeter and Electrometer/High Resistance Meter - Data Sheet
Free PC-based software and multiple interface options
can automatically export measurement data into Microsoft Excel on your PC for further
Ready-to-use instrument drivers simplify programming
humidity measurement
capabilities?
ical parameters for high resistance
interfaces, and a dedicated thermo
For more information
information, sample programs, etc.
B2980A series
Femto/Picoammeter
Electrometer
PC connected via
GPIB, LAN or USB
Keysight
B2900A
Quick IV
Measurement
Software
Keysight
B2980A
Graphical Web
Interface
Keysight B2900A family
09 | Keysight | B2980A Series Femto/Picoammeter and Electrometer/High Resistance Meter - Data Sheet
Navigation keys
Rotary knob and
instant save & recall
4.3” color LCD
Current input
ON/OFF switch
Battery indicator
(B2983A)
USB 2.0 for
memory I/O
Ammeter input
Analog out Trigger IN/OUT LAN USB 2.0 GPIB
Digital I/O
Power switch
Navigation keys
Rotary knob and
instant save & recall
4.3” color LCD
Current input
ON/OFF switch
Voltage source
ON/OFF switch
Battery indicator
(B2987A)
USB 2.0 for
memory I/O
Voltage
source output
Ammeter input Voltmeter input
Analog out Trigger IN/OUT LAN USB 2.0 GPIB
Digital I/O Interlock Humidity sensor
I/F (digital)
Thermocouple
I/F
Power switch
Electrometer/High Resistance Meter
Compatibility table for optional high performance accessories and productivity tools
Electrometer/High Resistance Meter
Temperature: 23 °C ± 5 °C
Humidity: 30% to 80% RH
After 1 hour warm-up
Ambient temperature change: less than ± 3 °C after self-calibration
Calibration period: 1 year
Supplemental characteristics
RMS noise
NMRR3> 60 dB
Maximum input capacitance
NOTES
Supplemental characteristics
Current measurement
1
time
2 pA 1 aA 1 + 3 fA 16 s
20 pA 10 aA 0.5 + 3 fA 1.4 s
200 pA 100 aA 0.5 + 5 fA 1.4 s
2 nA 1 fA 0.2 + 300 fA 13 ms
20 nA 10 fA 0.2 + 500 fA 13 ms
200 nA 100 fA 0.2 + 5 pA 1.2 ms
1 pA 0.1 + 50 pA
10 pA 0.05 + 500 pA
100 pA 0.05 + 5 nA
2 mA 1 nA 0.05 + 50 nA
20 mA 10 nA 0.05 + 500 nA
Resistance measurement
200 nA
20 nA
2 nA
2 nA
200 pA
20 pA
2 pA
NOTES
1.
-
rent measurement offset error / Current measurement range)
2.
Voltage measurement
Supplemental characteristics
Input bias current < 20 fA
Input impedance
RMS noise
NMRR1> 60 dB
CMRR2> 140 dB at DC; > 70 dB at 50 Hz or 60 Hz
NOTES
Conditions: properly zeroed, 6½-digit, 1 PLC
1.
2.
Charge measurement
1
2 nC 1 fC 0.4 + 50 fC
20 nC 10 fC 0.4 + 500 fC
200 nC 0.1 pC 0.4 + 5 pC
1 pC 0.4 + 50 pC
NOTES
1.
Voltage source
1
± 20 mA
± 1 mA
5 ms
Source function
NOTES
1. Supplemental characteristics
2. 10 Hz to 20 MHz: Supplemental characteristics
3. Open load
NOTES
1. Thermocouple accuracy excluded for thermocouple, temperature probe accuracy included for humidity sensor
2.
Temperature measurement (Thermocouple)
Temperature sensor Range 1Unit
Type-K thermocouple - 25 °C to 150 °C 0.2% + 2 °C
Temperature probe in humidity
sensor2
- 40 °C to 80 °C 0.5 °C
Humidity measurement
Range 1
0 % to 100 %
NOTES
1. Sensor accuracy included
Measurement buffer and speed
100,000
Supplemental characteristics
Reading rates Additional noise error
1
0 % of range 0 % of range
0 % of range 0 % of range
0.01% of range 0% of range
0.001% of range
0.1% of range
NOTES
1.
Timer and trigger functions
Timer Time stamp
Arm/trigger delay
Triggering1
NOTES
1. Supplemental characteristics
Battery operation (B2983A, B2987A)
Technology
Supplemental characteristics
Typical operating time1
Recharging time
Battery life
NOTES
1.
Measurement control / navigation
Ranging
Offset cancelling
Math
Front panel operation
View mode
Hardkeys
Application softkey
Meter View
Histogram View
Graph View
Roll View
External trigger
Programmable edge triggered
Programmable edge triggered
1 mA @ VO
O
Conputer interfaces
Program, software and drivers
Programming
Program memory
Operating
Dimensions
Working
Weight
Ordering information
Model number Description
Electrometer/High Resistance Meter, 0.01 fA, 1000 V
Options
Manuals
Accessories
Open cap for triaxial connector
Productivity tools
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18 | Keysight | B2980A Series Femto/Picoammeter Electrometer/High Resistance Meter - Data Sheet
