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
MEMS leaders under pressure, says Yole
July 31, 2014
The MEMS industry is changing as established leaders with manufacturing and an emphasis on delivering components are put ...
Panasonic and Tesla Gigafactory battery plan forges ahead
Surface inspection tool can get customized
Wireless charging - a more cost-effective approach
Sony, Panasonic, Japan Display plan OLED joint venture
Sony, TSMC win award for silicon-plastic process development
July 30, 2014
The American Association for Clinical Chemistry (AACC) has awarded Sony DADC BioSciences and Taiwan Semiconductor Manufacturing ...
Sensor footprint evolution: Does size matter?
Memscap breaks even on rising Q2 revenue
GPS tracking devices to pass $3.5 billion in 2019
- New Linear Regulators Solve Old Problems
- Testing GPS with a Simulator
- DSM presents: Select the best plastic for DDR4
- Dual 13A μModule Regulator with Digital Interface for Remote Monitoring & Control of Power
InterviewCEO interview: China, not Apple, is way to go, says mCube CEO
Ben Lee, CEO of MEMS startup mCube, explains why he wants to spend $37 million on being a supplier of sensors to Chinese ODMs and avoiding a design win with Apple or Samsung.
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, Altium Ltd is offering EETimes Europe's readers the chance to win one TASKING VX-Toolset for ARM Cortex-M Premium Edition, normally licensed for 2.395 Euros, for ultra-rapid prototyping and code development around ARM Cortex-M based microcontrollers.
The VX-toolset for ARM is the first TASKING compiler suite to receive the Software Platform technology, which is seamlessly...Read more
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.