Download Dual Differential Amplifier/ADC Driver Delivers 10GHz Gain

News Release ç www.linear.com
Dual Differential Amplifier/ADC Driver Delivers
10GHz Gain Bandwidth with 1.1nV/√Hz Noise
MILPITAS, CA & NORWOOD, MA – March 22, 2017 – Analog Devices, Inc., which recently
acquired Linear Technology Corporation, announces the LTC6419, a dual 10GHz gain
bandwidth product differential amplifier with very low input voltage noise density of 1.1nV/√Hz,
delivering outstanding SNR performance for wideband signal amplification. Additionally, the
LTC6419 offers low distortion, providing 85dB spurious-free dynamic range (SFDR) at 100MHz
while driving 2VP-P signals. Four external resistors set the differential gain of each amplifier,
configurable from unity gain with frequency response beyond 1GHz, to gain of 100 with
bandwidth of 100MHz, and up to a maximum gain of 400 with bandwidth of 30MHz. At these
high frequencies, the LTC6419 offers significantly better channel-to-channel isolation of 95dB at
100MHz than other similar class dual amplifiers. Also its wide DC common mode voltage
ranges, 0V to 3.5V at the input, and 0.5V to 3.5V at the output, make the part particularly useful
in DC coupled applications interfacing between two dissimilar DC levels, such as from the
outputs of an I/Q demodulator to the inputs of analog-to-digital (A/D) converters.
The LTC6419 dual differential amplifier, with its DC coupling, low noise and high
bandwidth capabilities, is well suited for many applications such as direct conversion receivers,
driving high sample rate ADCs, high speed data acquisition systems, test instrumentation, high
resolution radar systems, advanced image sensors and LIDAR systems.
The LTC6419 has a supply voltage range from 2.7V to 5.25V. Each amplifier also has a
shutdown pin, so each amplifier can be enabled independently, drawing a nominal supply current
of 52mA. When disabled, the supply current reduces to 100µA per amplifier.
The LTC6419 is offered in a small 4mm x 3mm x 0.75mm, 20-lead LQFN plastic
package. Two grades are offered: an I grade rated from ̶ 40°C to 85°C and an H grade from
̶ 40°C to 125°C. The LTC6419 I grade is priced starting at $8.50 and the H grade starting at
$9.90 each in 1,000-pieces quantities. Both are available immediately in production quantities.
For more information, visit www.linear.com/product/LTC6419.
Dual Differential Amplifier/ADC Driver Delivers
10GHz Gain Bandwidth with 1.1nV/√Hz Noise
page 2
Photo Caption: Dual Differential Amplifier Delivers 10GHz Gain Bandwidth with 1.1nV/√Hz
Summary of Features: LTC6419
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Configurable Gain and Bandwidth: Unity Gain at 1.4GHz
Gain = 100 at 100MHz
Gain = 400 at 30MHz
1.1nV/Hz Input Voltage Noise Density with 40kHz Noise Corner Frequency
Wide DC Common Mode Voltage Range:
o Input 0V to 3.5V
o Output: 0.5V to 3.5V
Channel Separation 95dB at 100MHz
Industrial and High Temperature Grades Offered:
o I Grade:
–40°C to 85°C
o H Grade:
–40°C to 125°C
Pricing shown is for budgetary use only and may differ due to local duties, taxes, fees and
exchange rates.
Analog Devices just got more Powerful. On March 10, Analog Devices acquired Linear
Technology, creating the premier high performance analog company. More info at
http://lt.linear.com/07c.
About Analog Devices
Analog Devices (NASDAQ: ADI) is the leading global high-performance analog technology
company dedicated to solving the toughest engineering challenges. We enable our customers to
interpret the world around us by intelligently bridging the physical and digital with unmatched
technologies that sense, measure, power, connect and interpret. Visit http://www.analog.com.
, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Analog Devices, Inc. All
other trademarks are the property of their respective owners.
Press Contacts:
North America / Worldwide
UK & Nordic
John Hamburger, Director Marketing
Communications
[email protected]
Tel: 408-432-1900 ext 2419
Alan Timmins
[email protected]
Tel: +44-1-252-629937
Doug Dickinson, Media Relations Manager
[email protected]
Tel: 408-432-1900 ext 2233