Signal Conditioning Operational Amplifiers (Op Amps) High Speed Amplifiers (GBW > 50MHz)
Signal Conditioning Operational Amplifiers (Op Amps) Low Noise Amplifiers

LT1254 - Low Cost Dual and Quad Video Amplifiers

Features

  • Low Cost
  • Current Feedback Amplifiers
  • Differential Gain: 0.03%, RL = 150 ohms, VS = ±5V
  • Differential Phase: 0.28°, RL = 150 ohms, VS = &3177;5V
  • Flat to 30MHz, 0.1dB
  • 90MHz Bandwidth on ±5V
  • Wide Supply Range: ±2V(4V) to ±14V(28V)
  • Low Power: 60mW per Amplifier at ±5V

Typical Application

LT1254 Typical Application
LT1254 Typical Application

Description

The LT1253 is a low cost dual current feedback amplifier for video applications. The LT1254 is a quad version of the LT1253. The amplifiers are completely isolated except for the power supply pins and therefore have excellent isolation, over 94dB at 5MHz. Dual and quad amplifiers significantly reduce costs compared with singles; the number of insertions is reduced and fewer supply bypass capacitors are required. In addition, these duals and quads cost less per amplifier than single video amplifiers. The LT1253/LT1254 amplifiers are ideal for driving low impedance loads such as cables and filters. The wide bandwidth and high slew rate of these amplifiers make driving RGB signals between PCs and workstations easy. The excellent linearity of these amplifiers makes them ideal for composite video. The LT1253 is available in 8-pin DIPs and the S8 surface mount package. The LT1254 is available in 14-pin DIPs and the S14 surface mount package. Both parts have the industry standard dual and quad op amp pin out. For higher performance, see the LT1229/LT1230.

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
LT1254CN#PBF N-14 N C 05-08-1510 (N14) Yes
LT1254CS#PBF SO-14 S C 05-08-1610 (S14) Yes
LT1254CS#TRPBF SO-14 S C 05-08-1610 (S14) Yes


LT1254 Package Drawing
LT1254 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
LT1254CN#PBF N-14 C $5.42 $4.40 Yes
LT1254CS#PBF SO-14 C $5.75 $4.65 Yes
LT1254CS#TRPBF SO-14 C $4.71 Yes
Buy Now • Request Samples
* 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

  • RGB Cable Drivers
  • Composite Video Cable Drivers
  • Gain Blocks in IF Stages

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Design Tools

LTspice

LTspice® software is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. Click here to download LTspice

Models for the following parts are available in LTspice:
LT1254

Technical Support