Zero-drift amplifier from Analog Devices claims industry's lowest voltage noise
April 13, 2011 // Paul Buckley
Analog Devices, Inc., has introduced what the company claims is the industry's lowest-noise, zero-drift operational amplifier. The ADA4528 zero-drift op amp is designed for instrumentation and medical applications that require precision over time and temperature without system calibration.
The design achieves an ultra-low integrated voltage noise of 99 nVp-p over 0.1 Hz - 10 Hz meaning that the ADA4528 delivers a 26 percent lower voltage noise at 40 percent less power consumption than the closest competing amplifiers. This improves system SNR (signal-to-noise ratio) and lowers the noise floor, enabling 24-bit resolution over 150 kHz in A/D converters while improving system accuracy.
The 5.3-nV/rtHz voltage noise density allows designers for the first time to use the zero-drift amplifier in broadband applications, such as piezoelectric transducers and precision data acquisition systems.
The ADA4528 zero-drift amplifier offers low offset voltage of 2.5 µV max and the industry’s lowest guaranteed offset-voltage drift of 0.015 µV/˚C max. The device has a 140 dB gain and a CMRR (common-mode rejection ratio) of 135 dB and a 130 dB PSRR (power-supply rejection ratio), making it well-suited for precision amplification of low-level signals in applications such as position and pressure sensors, strain gages, and medical instrumentation. The ADA4528 is fully specified to operate from a 2.2-V to 5.5-V single-voltage supply over the extended industrial temperature range (−40 to +125°C) and is available in an 8-lead MSOP (Mini Small Outline Package).
For further information: www.analog.com/ADA4528
Sensors for wearable electronics on 40% CAGR
March 05, 2015
Wearable electronics will be the big opportunity for sensors after margins shrink in smartphones and tablet computers, according ...
Understanding capacitors, ripple and self-heating
Fan-out wafer level packaging fills gap to 3D, says Yole
Sony switches to OLEDs to upgrade VR helmet
Tower makes IR sensor for Intel RealSense
Polymer blend improves solar cell efficiency by 200 percent
March 04, 2015
A University of Cincinnati research partnership has developed a blend of polymers which could make solar cells stronger, ...
Stress tracker tames drivers
Glass coated cathode promises lithium-sulfur battery performance gains
Femtocell improves in-car mobile connectivity
- High Performance Portable DC Bench Power Supply: Save Money and Free Up Bench Real Estate by Building Your Own
- Software-Defined Radio Handbook
- A Four-Quadrant DC/DC Switching Regulator Smoothly Transitions from Positive to Negative Output Voltages for FPGA and Other Applications
- LED Driver with Integrated Spread Spectrum Reduces EMI without Adding Flicker
InterviewInfineon: CAN FD success goes at the expense of FlexRay
The faster version of the venerable CAN bus, CAN FD is currently taking off at several carmakers. Infineon's Thomas Böhm, Head of Body / Automotive, believes this could well go at the expense of FlexRay. ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
To ensure you have a good start in 2015, Freescale is giving away five of its QorIQ TWR-LS1021A Tower system modules, worth USD269 each, for EETimes Europe's readers to win.
The module is the most feature-rich and high-performance Tower system offered by Freescale, enabling compatibility and interoperability with the growing list of Tower expansion modules, offering an easily accessible...MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.