Signal Conditioning Operational Amplifiers (Op Amps) High Output Current Amplifiers
Signal Conditioning Operational Amplifiers (Op Amps) High Speed Amplifiers (GBW > 50MHz)

LT1969 - Dual 700MHz, 200mA, Adjustable Current Operational Amplifier

Features

  • 700MHz Gain Bandwidth
  • ±200mA Minimum IOUT
  • Adjustable Quiescent Current
  • Low Distortion: –72dBc at 1MHz, 4VP-P , 25 Ohms, AV = 2
  • Stable in AV >/= 10, Simple Compensation for AV < 10
  • ±4.3V Minimum Output Swing, VS = ±6V, RL = 25 Ohms
  • Stable with 1000pF Load
  • 6nV Rt.Hz Input Noise Voltage
  • 2pA Rt.Hz Input Noise Current
  • 4mV Maximum Input Offset Voltage
  • 4µA Maximum Input Bias Current
  • 400nA Maximum Input Offset Current
  • ±4.5V Minimum Input CMR, VS = ±6V
  • Specified at ±6V, ±2.5V

Typical Application

LT1969 Typical Application
LT1969 Typical Application

Description

The LT®1969 is an adjustable current version of the popular LT1886, a 200mA minimum output current, dual op amp with outstanding distortion performance. The adjustable current feature is highly desirable in applications where minimum power dissipation is required while still being able to provide adequate line termination.

At nominal supply current, the amplifiers are gain of 10 stable and can easily be compensated for lower gains. The LT1969 features balanced high impedance inputs with 4µA input bias current and 4mV maximum input offset voltage. Single supply applications are easy to implement and have lower total noise than current feedback amplifier implementations.

The output drives a 25 Ohms load to ±4.3V with ±6V supplies. On ±2.5V supplies, the output swings ±1.5V with a 100 Ohms load. The amplifier is stable with a 1000pF capacitive load making it useful in buffer and cable driver applications.

The LT1969 is manufactured on Linear Technology’s advanced low voltage complementary bipolar process and is available in a thermally enhanced MS10 package

Packaging

CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
Drawing		 RoHS
LT1969CMS#PBF MS-10 MS C 05-08-1661 Yes
LT1969CMS#TRPBF MS-10 MS C 05-08-1661 Yes


LT1969 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
(1-99)		 Price
(1k)*		 RoHS
LT1969CMS#PBF MS-10 C $3.75 $2.95 Yes
LT1969CMS#TRPBF MS-10 C $3.01 Yes
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* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Click here to view our complete list of demo boards

Applications

  • DSL Modems
  • xDSL PCI Cards
  • USB Modems
  • Line Drivers

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Design Tools

Linear Technology provides a variety of custom design simulation tools and device models to allow even novice designers to quickly and easily evaluate circuits using high performance switching regulators, amplifiers, data converters, filters and more. Please visit our Design Tools page to view and download:

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