High-speed op amp claims lowest noise performance with 900-MHz bandwidth at a gain of 10
May 18, 2010 // Paul Buckley
A new ultra-high-speed operational amplifier (op amp) from National Semiconductor Corp., claims to deliver the industry's lowest noise (0.69 nV/sqrt Hz) with -3 dB bandwidth of 900 MHz at a gain of 10.
The PowerWise LMH6629 provides designers a mix of wide bandwidth, high gain and precision amplification for systems where minimal noise addition is a key performance requirement. These include 16-bit systems for communications, test and measurement, medical imaging, industrial, and light detecting and ranging (LIDAR) applications.
The LMH6629 also provides low input current noise (2.6 pA/sqrt Hz) and second and third harmonic distortion (f = 1 MHz) performance of -90 dBc and -94 dBc, respectively. The op amp's low input noise, low distortion and high speed combined with ultra-low DC errors - 780 uV input offset voltage max at 25 degrees C and ±0.45 µV per degree C of TCVos - enable precision operation in both AC- and DC-coupled applications.
The LMH6629's input common-mode range extends below ground and the output swings to within 0.8 V of either rail with a linear output current of greater than ±250 mA. The PowerWise op amp consumes 15.5 mA and features a supply voltage range from 2.7 V to 5.5 V. Its user selectable internal compensation eliminates the external compensation components and additional design time required with other amplifiers. With the LMH6629, designers can set a minimum gain of 4 or 10 by pulling the minimum gain select pin low or high.
The LMH6629 is manufactured on National's new CBiCMOS8 silicon-germanium (SiGe) complementary bipolar-CMOS process technology. Among the most advanced analog processes in the industry, CBiCMOS8 features a monolithic combination of SiGe NPN and PNP transistors, as well as low-power CMOS transistors that enable high speed, linearity, circuit density, low power and low noise for demanding high-speed analog applications.
Availability and Pricing
Available now, the LMH6629 is supplied in an 8-pin LLP package and operates over the extended industrial temperature range of -40 to 125 degrees C. The LMH6629 is priced at 1.88 US Dollars each in 1,000-unit quantities.
Related link: LMH6629
True building-integrated photovoltaics about to take-off, says n-tech Research
August 05, 2015
In its latest report, industry analyst firm n-tech Research predicts the total market for building-integrated solar photovoltaic ...
Shock absorber harvests energy from car's suspension
Altera brings in ZMDI to boost digital power control integration
Wearable monitor wins Sudden Impact challenge
Automotive electronics complexity at tipping point, study warns
Phone batteries leak your browsing whereabouts
August 04, 2015
A European team of security researchers have identified a potential privacy invasion 'black hole' that could exploit phone ...
NASA preps Venus ICs
'Aqueous solar flow' battery lasts longer
Google 'Street View' cars add sensors to map air quality
- Dual Phase Buck Controller Drives High Density 1.2V/60A Supply with Submilliohm DCR Sensing
- Test environment for the positioning elements of wearable devices
- Automotive Circuit Protection using Littelfuse Automotive TVS Diodes
- Top 5 Challenges for testing Today's Consumer Electronics
InterviewGlobalfoundries' CEO on why FD-SOI and why now
With its latest news Globalfoundries Inc. has not only confirmed itself as a supporter of the fully-depleted silicon-on-insulator (FD-SOI) approach to IC manufacturing but that it also thinks sufficiently ...
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
This month, Novelda is giving away two full XeThru Inspiration kits worth 1499 US Dollars each, for EETimes Europe's readers to experiment first hand with its XeThru technology.Based on the use of radio waves, rather than infrared, ultrasound or light, the company's X2M1000 Inspiration modules can detect presence just from the chest movement while breathing, and measure both the rate and... 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.