Built on an advanced SiGe BiCMOS process, the LTC6409 features 10GHz gain-bandwidth
product, 100dB SFDR up to 40MHz, and 1 percent settling time of 1.9ns. It is
ideal for driving the latest high speed ADCs such as the 1.8V 14-bit 150Msps
LTC2262-14. The LTC6409 features wide input common mode range of 0 to 3.5V and
output common mode range of 0.5 to 3.5V when using a single 5V 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 95mA allows it to drive lower value feedback
and gain resistors, such as 150Ohm, resulting in very low output noise.
The LTC6409 is fully specified to
operate with either a 3 or 5V single supply. Despite its wide bandwidth and low
noise performance, supply current power consumption is just 56mA max and a
shutdown mode reduces this to 500uA when turned off. Turn-on time is typically
160ns.
The LTC6409 will find use in pulsed signal applications such as radar signal
processing, imaging, high speed test and measurement and communications
applications.
The LTC6409 is available in a 2 x 3 mm QFN package, fully specified over the
C- (0 to 70C),
I- (-40 to 85C) and H- (-40 to 125C) temperature grade ranges. Prices start at
$4.50 each in 1,000 piece quantities.
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