Features & Benefits
- Active Differential Preamplifier
- 10 μV/div Sensitivity
- Typically 100 dB CMRR DC to 10 kHz
- Integral Probe Power with TEKPROBE™ BNC
Applications
- Mechanical Analysis
- Audio Design
- Biomedical Research (Not Certified For Patient
Connection)
- Medical Equipment (Not Certified For Patient
Connection)
ADA400A
The ADA400A Differential Preamplifier allows direct oscilloscope
measurements of very low amplitude voltages and signals which are
not ground referenced. The high impedance of both inputs eliminates
the need to add additional ground points in the DUT, thereby avoiding
circulating currents which disturb the measurement or the circuit.
The high gain and extremely high common mode rejection provide
usable measurements of voltages as low as 5 μV, even in high-noise
environments. Selectable bandwidth limiting reduces normal mode noise
from digital logic, switch mode power supplies, and line frequency
sources. Adjustable differential offset allows the user to null out
transducer bridge bias and galvanic potential from the test setup.
An "infinite impedance" mode can be selected in the two highest gain
ranges allowing accurate measurements of signals with high source
impedance.
The ADA400A is powered directly from TDS400, TDS500,
TDS600, TDS700, TDS5000, TDS7000 (TEKPROBE), TDS7000 (TekConnect)
w/ TCA-1MEG Series oscilloscopes. It may also be powered by a 1103
Probe Power Supply.
Characteristics
Gain - 100x, 10x, 1x,
.01x.
CMRR - ≥100,000: 1 DC - 10 kHz.
|
Gain
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CM Range
|
Differential Range*1
|
Max Offset
|
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100
|
±10 V
|
0.1 V
|
±1.0 V
|
|
10
|
±10 V
|
1 V
|
±1.0 V
|
|
1
|
±40 V
|
10 V
|
±40 V
|
|
0.1
|
±40 V
|
80 V
|
±40 V
|
*1 For higher voltages, attenuating probes
may be used, but CMRR performance will be degraded.
Bandwidth
Limits - 100 Hz, 3 kHz, 100 kHz, full (≥1 MHz).
Input
Impedance - 1 MΩ || ~ 55 pF (infinity Ω selectable in 100x and
10x gains).
Noise - Typically ≤30 μVRMS at
100x gain (referred to input).
Ordering Information
ADA400A
Differential
Preamplifier.
Includes: Instruction manual (Order 070-9164-01),
2 spare input fuses (Order 159-0024-xx).
Service
Opt. C3 - Calibration Service 3 Years.
Opt.
C5 - Calibration Service 5 Years.
Opt. D1 - Calibration
Data Report.
Opt. D3 - Calibration Data Report 3 Years
(with Opt. C3).
Opt. D5 - Calibration Data Report 5
Years (with Opt. C5).
Opt. R5 - Repair Service 5 Years.
Recommended Accessories
P6101B 1x passive
probe (2 recommended).
CE Marking Not Applicable.
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Product(s) are manufactured in ISO registered facilities.
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60W-10387-2, 28-APR-2008
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