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
Never lose track of things
March 30, 2015
This month, DecaWave is offering EETimes Europe's readers the chance to win two TREK1000 kits to evaluate its Ultra-Wideband ...
Europe leads PV uptake charts as global growth continues
Graphene's first commercial success: energy-saving light bulbs?
Nanolaser enables on-chip photonics
New cyber-physical systems as the basis for IoT: Europe has it all
1.5-A LDO plus regulator monitors current and temperature
March 30, 2015
LDO+ regulators do more than just regulate. They include monitor and control functions as well as regulation. The LT3081 ...
Sensor data predict failure of large machines
Big data sets drones to fly
CE marking misconceptions
- Intelligent Over Temperature Protection for LED Lighting Applications
- Intel helps to Turbocharge Infotainment Systems Designs
- High Performance Portable DC Bench Power Supply: Save Money and Free Up Bench Real Estate by Building Your Own
- Software-Defined Radio Handbook
InterviewInfineon: CAN FD success goes at the expense of FlexRay
The faster version of the venerable CAN bus, CAN FD is currently taking off at several carmakers. Infineon's Thomas Böhm, Head of Body / Automotive, believes this could well go at the expense of FlexRay. ...
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, Freescale is giving away 5 RIoTboards, worth 74 dollars each, for EETimes Europe's readers to win.
Designed to run Android operating systems efficiently or to run under Linux, the board is based on the Freescale i.MX 6Solo processor; using the ARM Cortex-A9 architecture.
The RIoTboard platform also includes a rich set of peripherals including a 10M/100M/Gb Ethernet port, 1...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.