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
Automotive MCU benchmark takes energy efficiency into account
May 21, 2013
Today, cars are crammed with microprocessors, and many of them are not completely switched off when the driver parks and ...
EnSilica partners Cross Border Technologies to boost sales growth in key European markets
Industry's first ultra-wideband Doherty amplifiers support broadband operation
Graphics chip recognizes nearby pedestrians and bicycles
EMS boom for medical industry says analyst
Gemalto teams with Encore Networks for mission critical M2M communications as US shifts to wireless
May 21, 2013
European smartcard specialist Gemalto has teamed up with US machine-to-machine (M2M) router supplier Encore Networks to provide ...
Solar industry capital spending hits seven-year low in 2013 but upturn is on the cards
Apple's overseas tax evasion stirs debate over US tax code
Could Intel enable USD200 Ultrabook?
InterviewWireless control drives Atmel in Europe
Atmel's recent acquisition of Osmo Devices with a WiFi Direct design center in Cambridge and some key microcontroller launches has seen the company focus heavily on wireless control in Europe says Jörg ...
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
The development platform for i.MX 6Quad from element14 (built to the Freescale SABRE Lite design) is an evaluation platform featuring the powerful i.MX 6Q, a multimedia application processor with Quad ARM Cortex-A9 cores at 1.2 GHz from Freescale Semiconductor.
This month, Freescale and element14 are giving away five such platforms, worth £128.06 each, for EETimes Europe's readers to win. The platform helps evaluate the rich set of peripherals and includes a 10/100/Gb Ethernet port, SATA-II, HDMI v1.4, LVDS, parallel RGB interface, touch screen interface, analog headphone/microphone, micro TF and SD card interface, USB, serial port, JTAG, camera interface, and input keys for Android.
And the winners are...
In our previous reader offer, Pico Technology was giving away one of its recently launched PicoScope 3207B, a 2-channel USB 3.0 oscilloscope worth 1451 Euros. Lucky winner Mr L. Sanchez-Gonzalez from Spain should be receiving his PicoScope 3207B soon. Let's wish them some interesting findings with his projects.
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.