VITA Technologies
  • VME
  • XMC
  • FMC
  • PMC
  • VNX
  • VPX
  • VME
  • XMC
  • FMC
  • PMC
  • VNX
  • VPX
  • Articles
  • White Papers
  • Products
  • News
  • Articles
  • White Papers
  • Products
  • News
  News  New Products  National Semiconductor Delivers First Zero-Drift, Programmable Instrumentation Amplifier with Diagnostics
New Products

National Semiconductor Delivers First Zero-Drift, Programmable Instrumentation Amplifier with Diagnostics

National SemiconductorNational Semiconductor—April 7, 20100
FacebookX TwitterPinterestLinkedInTumblrRedditVKWhatsAppEmail


The LMP8358 allows users to detect shorts, open circuits and degraded source connections in remote industrial applications.

The LMP8358 allows users to detect shorts, open circuits and degraded source connections in remote industrial applications.

April 7, 2010 – National Semiconductor Corp. today introduced the industry’s first zero-drift, programmable instrumentation amplifier with on-chip diagnostics. The LMP8358 simplifies pressure and thermocouple bridge measurements by allowing users to detect shorts, open circuits and degraded source connections in remote industrial applications. This diagnostic capability prevents circuit shutdowns in medical instruments, precision weigh scales, pressure sensors and motor control systems.

The LMP8358 uses patented techniques to measure and continuously correct its input offset voltage (5 uV typical), eliminating offset drift over time and temperature, as well as the effect of 1/f noise. This leads to a flat noise spectrum of 27 nV/sqrt Hz. The LMP8358’s programmable frequency compensation enables programmable bandwidths, and its offset compensation circuit does not introduce distortion and aliasing for signals lower than 12 kHz of bandwidth.

More stories

Curtiss-Wright Controls Introduces Industry’s First NVIDIA(r) GPGPU OpenVPX(tm) Engine based on NVIDIA Fermi architecture

July 1, 2011

DDC-I Announces Safety-Critical Migration Path for Wind River Users Targeting Non-Intel Platforms

June 17, 2009

New MEN Micro 6U VMEbus SBC Provides Master & Slave Functionality for Multiprocessing

May 23, 2012

New Graphics System Uses Single Core for High Performance Video Processing Demo at AEE will showcase video latency as low as two frames

April 20, 2016

The LMP8358 is equipped with electromagnetic interference (EMI) suppression filters to reduce unwanted radio frequency (RF) interference from external sources, such as cell phones or nearby antennas. Additional filtering can be added with one external capacitor. The LMP8358 is built on National’s CMOS7-5V process technology and provides an optimized signal path solution for precision systems when combined with the 16-bit ADC161S626 or 14-bit ADC141S626 analog-to-digital converters.

The LMP8358 provides glitch-free transitions between gain settings, which can be programmed to 10, 20, 50, 100, 200, 500 or 1000 through a serial peripheral interface (SPI) or parallel interface. All gain settings have less than 0.1 percent typical gain error. This enables manufacturers to perform system calibration by applying specific signal levels at various gains and temperatures. The LMP8358’s gain can be set to an arbitrary value using two external resistors.

Technical Features – LMP8358 Zero-Drift Instrumentation Amplifier

Supplied in 14-pin SOIC and 14-pin TSSOP packages, the LMP8358 operates from a single 2.7V to 5V supply and operates over a wide temperature range of -40 degrees C to 125 degrees C. The amplifier provides 10 uV maximum offset voltage and 50 nV/C maximum offset voltage drift. It features a gain bandwidth (GBW) of 8 MHz while consuming only 1.7 mA of supply current. A power-conserving shutdown mode reduces current consumption to less than 1 uA. The LMP8358’s registers allow designers to program the chip’s bandwidth, shutdown and fault detection circuitry. Designers also can “daisy chain” multiple LMP8358 ICs.

The LMP8358’s ground-sensing CMOS input provides a high common-mode rejection ratio (CMRR) of 120 dB. It’s capable of sensing differential input voltages in a common-mode range that extends from 100 mV below the negative supply to 1.4V below the positive supply. This makes the LMP8358 well-suited for interfacing with ground-referenced sensors, supply-referenced sensor bridges and any other application requiring precision and long-term stability.

Pricing and Availability

Available now, the LMP8358 is priced at $2.71 each in 1,000-unit quantities. For more information, or to order samples and an evaluation board, visit www.national.com/pf/LM/LMP8358.html.

Additional information is available at www.national.com.

FacebookX TwitterPinterestLinkedInTumblrRedditVKWhatsAppEmail
Revolutionary new MXM 3.0 extended temperature architecture from Wolf enables Avionic, Military and other OEMs replacement GPU system upgrades.
Aonix PERC Ultra Virtual Machine flies high on recent business jet certification tests
Related posts
  • Related posts
  • More from author
Eletter Products

SPONSORED: 3U VPX HD Switch Doubles Backplane Density

August 1, 20250
RTS rugged test and deployment system
Eletter Products

SPONSORED: Rugged Test and Deploy Systems for VPX and SOSA Aligned Payloads

July 25, 20250
Articles

The VITA Technologies 2025 Resource Guide is here!

June 19, 20250
Load more
Read also
Eletter Products

SPONSORED: 3U VPX HD Switch Doubles Backplane Density

August 1, 20250
RTS rugged test and deployment system
Eletter Products

SPONSORED: Rugged Test and Deploy Systems for VPX and SOSA Aligned Payloads

July 25, 20250
Articles

The VITA Technologies 2025 Resource Guide is here!

June 19, 20250
Articles

Next-gen fiber optics for aviation: Expanded Beam performance with VITA 95/96

June 3, 20250
Articles

Embedded Tech Trends 2025 Wrapup

June 3, 20250
Consortia and Working Groups

VITA standards activity updates

June 3, 20250
Load more

Recent Comments

No comments to show.
  • Articles
  • White Papers
  • Products
  • News
  • Articles
  • White Papers
  • Products
  • News
  • VME
  • XMC
  • FMC
  • PMC
  • VNX
  • VPX
  • VME
  • XMC
  • FMC
  • PMC
  • VNX
  • VPX

© 2023 VITA Technologies. All rights Reserved.