Keithley 2182A/E Digital-Multimeter, DMM, 2182A/E データシート
製品コード
2182A/E
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A Greater Measure of Confidence
www.keithley.com
1.888.KEITHLEY
(U.S. only)
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The two-channel Model 2182A Nanovoltmeter
is optimized for making stable, low noise
voltage measurements and for characterizing
low resistance materials and devices reliably
and repeatably . It provides higher measurement
speed and significantly better noise performance
than alternative low voltage measurement
solutions .
The Model 2182A represents the next step
The Model 2182A represents the next step
forward in Keithley nanovoltmeter technology,
replacing the original Model 2182 and offering
enhanced capabilities including pulse capability,
lower measurement noise, faster current rever-
sals, and a simplified delta mode for making
resistance measurements in combination with a
reversing current source, such as the Model 6220
or 6221 .
•
Make low noise measurements at
high speeds, typically just 15nV
p-p noise at 1s response time,
40–50nV p-p noise at 60ms
•
Delta mode coordinates
measurements with a reversing
current source at up to 24Hz
with 30nV p-p noise (typical) for
one reading. averages multiple
readings for greater noise
reduction
•
synchronization to line provides
110db NMrr and minimizes
the effect of aC common-mode
currents
•
Dual channels support measuring
voltage, temperature, or the ratio
of an unknown resistance to a
reference resistor
•
built-in thermocouple
linearization and cold junction
compensation
figure 1. Compare the Model 2182a’s DC noise performance with a nanovolt/micro-ohm-
meter’s. all the data shown was taken at 10 readings per second with a low thermal short
applied to the input.
-100
-50
0
50
100
150
Keithley 2182A
nV/
nV/
µΩ Meter
0
100
Number of Readings
nV
flexible, Effective speed/Noise Trade-offs
The Model 2182A makes it easy to choose the best speed/filter combination for a particular applica-
The Model 2182A makes it easy to choose the best speed/filter combination for a particular applica-
tion’s response time and noise level requirements . The ability to select from a wide range of response
times allows optimizing speed/noise trade-offs . Low noise levels are assured over a wide range of
useful response times, e .g ., 15nV p-p noise at 1s and 40-50nV p-p noise at 60ms are typical . Figure 1
illustrates the Model 2182A’s noise performance .
2182a
Nanovoltmeter