Analog introduces 16-V, zero-drift instrumentation amplifier

Norwood, MA—To enable low-drift and precision over extended temperature ranges in industrial applications, Analog Devices Inc. has introduced what it reports is the industry's first 16-V, zero-drift precision instrumentation amplifier (in-amp).

02/01/2005


Norwood, MA— To enable low-drift and precision over extended temperature ranges in industrial applications, Analog Devices Inc. has introduced what it reports is the industry's first 16-V, zero-drift precision instrumentation amplifier (in-amp). Designed for optimal performance in noisy industrial environments, The firm adds that AD8230 features the industry's highest common mode input range, maintains low drift, and delivers precise measurements over an extended temperature range.

Until now, industrial process control design engineers reportedly could only achieve this level of performance by adding resistors around discrete zero-drift operational amplifiers, making them costly and difficult to implement. Analog reports that AD8230 is the industry's first zero-drift in-amp to operate at 16 volts, giving industrial system designers the benefits of an integrated, cost-effective in-amp solution for instrumentation environments, such as precision temperature and bridge transducer interface applications, where ground potentials vary by several volts.

'Most 16-V discrete solutions are not zero-drift and have common mode reject ratio (CMRR) limitations due to resistor matching and tolerance challenges,' says Jay Cormier, product line director of Analog's Advanced Linear Products division. 'With the AD8230, designers can achieve a 25% reduction in cost and a 50% reduction in board area over most discrete solutions.'

In addition to its 16-V common mode input voltage range, which Analog adds is 45% wider than the nearest competitor's offering, AD8230 reportedly is the only solution that maintains better than 50 n V/ °C offset drift over the automotive and extended industrial temperature range of -40 °C to +125 °C. The company adds that competing in-amps have significantly higher offset drift, nearly 50 times, above +85 °C. AD8230's high CMRR of 110 dB (min) rejects line noise in measurements, where the sensor is far from the instrumentation or when it exhibits dc offset change over temperature.

Also, AD8230 is versatile, yet simple to use. Two matched external resistors are required to program the gain, offering greater stability over single-resistor programmed instrumentation amplifiers. AD8230 operates on

Control Engineering Daily News Desk
Jim Montague, news editor
jmontague@reedbusiness.com





No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
Each year, a panel of Control Engineering and Plant Engineering editors and industry expert judges select the System Integrator of the Year Award winners in three categories.
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Additive manufacturing benefits; HMI and sensor tips; System integrator advice; Innovations from the industry
Robotic safety, collaboration, standards; DCS migration tips; IT/OT convergence; 2017 Control Engineering Salary and Career Survey
Integrated mobility; Artificial intelligence; Predictive motion control; Sensors and control system inputs; Asset Management; Cybersecurity
Featured articles highlight technologies that enable the Industrial Internet of Things, IIoT-related products and strategies to get data more easily to the user.
This article collection contains several articles on how automation and controls are helping human-machine interface (HMI) hardware and software advance.
This digital report will explore several aspects of how IIoT will transform manufacturing in the coming years.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

Infrastructure for natural gas expansion; Artificial lift methods; Disruptive technology and fugitive gas emissions
Mobility as the means to offshore innovation; Preventing another Deepwater Horizon; ROVs as subsea robots; SCADA and the radio spectrum
Future of oil and gas projects; Reservoir models; The importance of SCADA to oil and gas
Automation Engineer; Wood Group
System Integrator; Cross Integrated Systems Group
Jose S. Vasquez, Jr.
Fire & Life Safety Engineer; Technip USA Inc.
This course focuses on climate analysis, appropriateness of cooling system selection, and combining cooling systems.
This course will help identify and reveal electrical hazards and identify the solutions to implementing and maintaining a safe work environment.
This course explains how maintaining power and communication systems through emergency power-generation systems is critical.
click me