Differential amplifier drives DC-coupled 100-MHz signals with low noise
October 12, 2010 // Paul Buckley
Linear Technology has introduced a fully differential amplifier capable of driving DC to 100 MHz signals with 1.1 nV/√Hz noise and -88 dBc HD2/HD3 distortion. Built on an advanced SiGe BiCMOS process, the LTC6409 features 10 GHz gain-bandwidth product, 100 dB SFDR up to 40 MHz, and 1% settling time of 1.9 ns.
The device is ideal for driving the latest high speed ADCs such as the 1.8 V 14-bit 150 Msps LTC2262-14. The LTC6409 features wide input common mode range of 0 V to 3.5 V and output common mode range of 0.5 V to 3.5 V when using a single 5 V supply, making it easy to interface ground-referenced signals to differential pipeline ADCs.
Gain and feedback resistors are external, allowing the designer to configure the exact gain needed for each application. The amplifier is unity gain stable and high output current of up to 95 mA allows it to drive lower value feedback and gain resistors, such as 150 Ohm, resulting in low output noise.
The LTC6409 is fully specified to operate with either a 3 V or 5 V single supply. Despite its wide bandwidth and low noise performance, supply current power consumption is 56 mA max and a shutdown mode reduces this to 500 uA when turned off. Turn-on time is typically 160 ns.
The LTC6409 will find use in pulsed signal applications such as radar signal processing, imaging, high speed test and measurement and communications applications.
Availability and Pricing
The LTC6409 is available in a 2 mm x 3 mm QFN package, fully specified over the C- (0 to 70 degrees C), I- (-40 to 85 degrees C) and H- (-40 to 125 degrees C) temperature grade ranges. Prices start at 4.50 US Dollars each in 1,000 piece quantities.
More information about the LTC6409 differential amplifier at www.linear.com/6409
Visit Linear Technology at www.linear.com
Is 3D XPoint based on phase-change memory?
July 31, 2015
What would be the simplest way to explain the technology behind 3D XPoint non-volatile memory; a scaled version of phase-change ...
Google Glass refocuses on enterprises, circumvents privacy issues
IoT wireless sensors and the problem of short battery life
High speed DAC for wide bandwidth signal generation
IBM's Watson to help CVS manage patient health data
3D printing as seen by the engineering community
July 30, 2015
Distributor RS Components has conducted some research over the past 12 months to understand what engineers and consumers ...
Green mobility, automation drive power electronics market
Sol-gel capacitor dielectric achieves record energy storage
Filament bulb replacements: The GaN-on-Silicon LED solution arrives
- 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.