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
Leading-edge driving pure-play foundry growth
October 13, 2015
The total pure-play foundry market is forecast to grow 6.1 percent to $44.9 billion in 2015, according to IC Insights.
Calibration: meeting the challenges of high-frequency power measurement
Volkswagen cuts R&D spending to face lawsuits
Video: Singapore Post trials drone mail delivery
Bosch drives development of both batteries and fuel cells
Silicon Europe grows to cover 12 regions
October 13, 2015
The Silicon Europe project – set up in 2012 to link four regional clusters for electronics research and business development ...
More-than-Moore will lead, argues GloFo's Wijburg
Startup pitch-fest opens Semicon Europa show
MEMS, sensors get four sessions at IEDM 2015
- Determine Balancing Current for the LTC3305 Lead-Acid Battery Balancer
- 3 Ways to Simplify Medical Device Testing
- Thread Networking Protocol Simplifies Connecting “Things” in the Home and Beyond
- High Voltage CMOS Amplifier Enables High Impedance Sensing with a Single IC
InterviewMEMS platforms are way to go, says Bosch's Finkbeiner
In the two years since we last interviewed Stefan Finkbeiner, CEO of Bosch Sensortec, the company has taken over from STMicroelectronics as the leading global supplier of MEMS components. Here he explains ...
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, LabNation is giving away three of its SmartScope open source USB oscilloscopes, worth 229 Euros each, for EETimes Europe's readers to win.
Successfully funded through Kickstarter last year, the SmartScope is claimed to be the world's first test equipment designed to run on multiple operating systems and platforms such as smartphones, tablets and PCs. It is powered directly from... 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.