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©Copyrights 2000-2015, Analog Technologies, Inc. All Rights Reserved. Updated on 8/28/2015 www.analogti.com 1
nalog Technologies AT
MA1
Noise Measurement Amplifier
Noise Measurement Amplifier
Figure 1. Physical Photos ofATNMA1.0
MAIN FEATURES
Built-in rechargeable battery
Magnifications: 3,000×, 10,000×, 30,000×, 100,000×,
300,000×, 1,000,000×, 3,000,000×
Three filter bandwidths: 0.1Hz ~ 10Hz, 0.1Hz ~ 1kHz,
0.1Hz ~ 100kHz
LED low battery indicator function
BNC output terminal
Input probes with adjustable span
100 % Lead (Pb)-free and RoHS Compliant
INTORDUCTION
This noise measurement amplifier, ATNMA1.0, is
designed to test ultra low noises which cannot be
measured by oscilloscope, such as nV and µV level noises,
for electronic modules. This amplifier measures the noise
signals through touching the point that needs testing, then
amplifies the detected noise signals, and select the
measuring range of frequencies. The rechargeable battery
energy is 500mAH, can be used more than 20 hours. The
rechargeable battery full voltage is 4.2V. The low noise
amplifier includes one rechargeable battery, one coaxial
cable, some probes.
This noise measurement amplifier assembly has 5
portions:
1. Amplify Magnifications
For example:
3000×:
Measure the noises between 1µV to 100µV. Toggle
magnification switch S2 to S2-1 and S5 to S5-1.
10,000×:
Measure the noises between 0.1µV to 1µV. Toggle
magnification switch S2 to S2-2 and S5 to S5-2.
300,000×:
Measure the noises less than 0.1µV. Toggle magnification
switch S2 to S2-3 and S5 to S5-3.
10,000,000×:
Measure the noises less than 1nV. Toggle magnification
switch S2 to S2-3 and S5 to S5-3.
Please see the switches location in figure 2 and figure 3.
Figure 2. Physical Label of ATNMA1.0
2. Noise Frequency Range
0.1Hz ~ 10Hz: toggle S2 to S2-1
0.1Hz ~ 100 kHz: toggle S2 to S2-2
0.1Hz ~ 1 kHz: toggle S2 to S2-3
Please see the switches location in figure3
