LINEAR TECHNOLOGY CORPORATION
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MILPITAS, CA - September 29, 2014 - Linear Technology announces the LTC6268 and LTC6269, FET-input single and dual op amps, which deliver outstanding performance for high speed and high dynamic range transimpedance amplifier (TIA) and buffer applications. With just 3fA bias current at 25°C and 4pA max over the entire -40°C to 125°C temperature range, the LTC6268/LTC6269 can resolve input currents from several femtoamps to amps. Wideband
voltage and current noise is 4.3nV/√Hz and 5.5fA/√Hz, respectively, enabling high dynamic range circuits. Built for
speed as well as precision, the LTC6268 features 500MHz gain bandwidth product, sub-pF input capacitance and -
100dB harmonic distortion at 1MHz. In addition to photodiode and photomultiplier (PMT) circuits, the LTC6268/9 are well suited for other high impedance sensor applications and for driving analog-to-digital converters (ADCs).
The LTC6268 data sheet features circuit and layout techniques to maximize TIA performance, with example circuits ranging from 20kΩ transimpedance gain at 65MHz bandwidth, to 499kΩ transimpedance gain at 11.2MHz bandwidth.
The LTC6268 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 is available in MSOP-8 with exposed pad and 3mm x
3mm DFN-10 packages.
The LTC6268 and LTC6269 are unity-gain stable and 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 and $4.90 for the LTC6269 each in 1000-piece quantities. For more information, visit www.linear.com/product/LTC6268 and www.linear.com/product/LTC6269.
● Gain Bandwith Product: 500MHz
● -3dB Bandwith (A = 1): 350MHz
● Low Input Bias Current:
❍ ±3fA Typ. Room temperature
❍ 4pA Max at 125°C
● Current Noise (100kHz): 5.5fA/√Hz
● Voltage Noise (1MHz): 4.3nV/√Hz
● Extremely Low CIN: 450fF
● Rail-to-Rail Output
● Slew Rate: 400V/µs
● Supply Range: 3.1V to 5.25V
● Quiescent Current: 16.5mA
● Harmonic Distortion (2Vp.p):
❍ -100dB at 1MHz
❍ -80dB at 10MHz
● Operating Temp Range: -40°C to 125°C
● Single in 8-Lead SO-8, 6-Lead TSOP-23
Packages
● Dual 8-Lead MS8, 3mm x 3mm 10-Lead
DFN 10 Packages
LTC6268 Click Photo for High-Res ImageThe 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 and Hot Swap is a trademark of Linear Technology Corp. All other trademarks are the property of their respective owners.
John Hamburger
Tel: (408) 432-1900 ext. 2419 jhamburger@linear.com
Doug Dickinson
Tel: (408) 432 1900 ext. 2233 ddickinson@linear.com
Fanny Lau
Tel: 852-2428-0303 flau@linear.com
Angela Ao
Tel: (8610)6522 8081 angela.ao@ebacomms.com
Yoshikazu Funasaki Tel: 81-3-5226-7291 yfunasaki@linear.com
Takashi Matsuda
Tel: +81-3-3255-8411 linear@chugai-ad.co.jp
Ralf Stegmann
Tel: +49 (0) 7131 9234-11 ralf@ezwire.com
Clotilde Zeller
Tel: +33 1 4614 87 09 clotilde@ezwire.com
Desiree Park
Tel: +82-2-565-6625 desiree@ezwire.com
Alan Timmins
Tel: +44-1252-629937 alan@ezwire.com
Simona Labianca
Tel: +39 340 0571697 simona@ezwire.com
Alice Wang
Tel: + 886-2-28974705 alice@ezwire.com
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