Path: EDN Asia >> Product Centre >> Test & Measurement >> DC differential amp touts less than 20µVrms noise input
Test & Measurement Share print

DC differential amp touts less than 20µVrms noise input

04 Jun 2013

Share this page with your friends

Measurement Specialties has released a 3-channel DC differential amplifier boasting an exceptionally low noise input of less than 20µVrms. According to the firm, the Model 121 enables precision measurement on up to three channels simultaneously.

Offering programmable gain up to 9,999 and user-defined output scaling, the signal conditioner is geared for bridge-type or differential output accelerometers, pressure transducers and load cells.

The unit's low noise floor over a wide frequency bandwidth up 200kHz makes for exceptional, accurate measurement of dynamic signals, stated the company. The Model 121 is used in a variety of instrumentation lab, vibration and shock testing as well as process monitoring applications.

Full scale accuracy is ±0.5 per cent and linearity is ±0.1 per cent. The Model 121 also features an auto-zero function that can be initiated by the operator to maximise voltage span in the data acquisition system. Each of the amplifier's three channels features a 9-pin D-sub connector. Input impedance is less than 1MΩ.

User-configurable shunt calibration can be applied via an internal or external resistor to any of the four legs of the transducer under test. Default shunt value is 150kΩ.

Testing parameters of the Model 121 can be easily set from the unit's front panel via a simple push button interface. The unit stores settings for all functions on internal memory, and will automatically restore the last session's settings on power-up.

Weighing 8.2lbs and constructed of durable aluminium, the unit is easily transported for use in a variety of testing environments, added the firm. The 3-channel Model 121 DC differential amplifier is available.




Want to more of this to be delivered to you for FREE?

Subscribe to EDN Asia alerts and receive the latest design ideas and product news in your inbox.

Got to make sure you're not a robot. Please enter the code displayed on the right.

Time to activate your subscription - it's easy!

We have sent an activate request to your registerd e-email. Simply click on the link to activate your subscription.

We're doing this to protect your privacy and ensure you successfully receive your e-mail alerts.


Add New Comment
Visitor (To avoid code verification, simply login or register with us. It is fast and free!)
*Verify code:
Tech Impact

Regional Roundup
Control this smart glass with the blink of an eye
K-Glass 2 detects users' eye movements to point the cursor to recognise computer icons or objects in the Internet, and uses winks for commands. The researchers call this interface the "i-Mouse."

GlobalFoundries extends grants to Singapore students
ARM, Tencent Games team up to improve mobile gaming


News | Products | Design Features | Regional Roundup | Tech Impact