4GHz Amplifier Achieves <1pA Input Bias Current over -40°C to 85°C Temperature Range

News Release  www.linear.com
4GHz Amplifier Achieves <1pA Input Bias Current over
–40°C to 85°C Temperature Range
MILPITAS, CA – May 13, 2015 – Linear Technology announces the LTC6268-10 single and
dual LTC6269-10 4GHz FET-input op amps for high dynamic range and high speed
transimpedance amplifier (TIA) applications. These new decompensated amplifiers extend the
speed and dynamic range capabilities of this ultralow bias current op amp family for applications
with a gain of 10 or higher. Input bias current is 0.9pA max over the –40°C to 85°C temperature
range and just 4pA max over the entire –40°C to 125°C temperature range. Wideband voltage
and current noise is 4nV/√Hz and 7fA/√Hz, respectively. With 0.45pF input capacitance and
1000V/µs slew rate, the LTC6268-10 and LTC6269-10 are well suited for photodiode and
photomultiplier (PMT) circuits, high impedance sensor applications and for driving analog-todigital converters (ADCs).
The LTC6268-10 data sheet features circuit and layout techniques to maximize TIA
performance, with example circuits ranging from 20kΩ transimpedance gain at 210MHz
bandwidth, to 402kΩ transimpedance gain at 34MHz bandwidth. The LTC6268-10 is available in
a 6-lead SOT-23 package, as well as an 8-lead SOIC with guard pins to protect against board
leakage currents. The LTC6269-10 is available in an MSOP-8 with exposed pad and in
3mm x 3mm DFN-10 packages. The LTC6268-10 and LTC6269-10 are fully specified over the
industrial –40°C to 85°C and –40°C to 125°C temperature ranges. Prices start at $2.90 each for
the LTC6268-10 and $4.90 each for the LTC6269-10 each in 1000-piece quantities. For more
information, visit www.linear.com/product/LTC6268-10 and www.linear.com/product/LTC626910
4GHz Amplifier Achieves <1pA Input Bias Current over
–40°C to 85°C Temperature Range
Photo Caption: 20kΩ Gain 210MHz Transimpedance Amplifier
Summary of Features: LTC6268-10 & LTC6269-10
Gain Bandwidth Product: 4GHz
Low Input Bias Current
o ±3fA Typ Room Temperature
o 4pA Max at 125°C
Current Noise (100kHz): 7fA/Hz
Voltage Noise (1MHz): 4.0nV/Hz
Extremely Low CIN 0.45pF
Rail-to-Rail Output
AV 10
Slew Rate: 1500V/µs, –1000V/µs
Supply Range: 3.1V to 5.25V
Quiescent Current: 16.5mA
Operating Temp Range: –40°C to 125°C
Single in 8-Lead SO-8 & 6-Lead TSOT-23 Packages
Dual in 8-Lead MS8 3mm x 3mm & 10-Lead DFN-10 Packages
The USA list pricing shown is for budgetary use only. International prices may differ due to local
duties, taxes, fees and exchange rates.
About Linear Technology Linear Technology Corporation, a member of the S&P 500, has been designing, manufacturing and marketing a broad line of high performance analog integrated circuits for major companies worldwide for over three decades. The Company’s products provide an essential bridge between our analog world and the digital electronics in communications, networking, industrial, automotive, computer, medical, instrumentation, consumer, and military and aerospace systems. Linear Technology produces power management, data conversion, signal conditioning, RF and interface ICs, µModule® subsystems, and wireless sensor network products. For more information, visit www.linear.com
, LT, LTC, LTM, Linear Technology, the Linear logo and µModule are registered trademarks of Linear Technology Corp. All other trademarks are the property of their respective owners.
Press Contacts:
North America / Worldwide
John Hamburger, Director Marketing Communications
[email protected]
Tel: 408­432­1900 ext 2419
Doug Dickinson, Media Relations Manager
[email protected]
UK & Nordic
Alan Timmins
[email protected]
Tel: +44­1­252­629937
4GHz Amplifier Achieves <1pA Input Bias Current over
–40°C to 85°C Temperature Range
Tel: 408­432­1900 ext 2233
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