HFA1105: 330MHz, Low Power, Current Feedback Video Operational Amplifier

The HFA1105 is a high speed, low power current feedback amplifier built with Intersil's proprietary complementary bipolar UHF-1 process.

This amplifier features an excellent combination of low power dissipation (58mW) and high performance. The slew rate, bandwidth, and low output impedance (0.08Ω) make this amplifier a good choice for driving Flash ADCs.

Component and composite video systems also benefit from this op amp's excellent gain flatness, and good differential gain and phase specifications. The HFA1105 is ideal for interfacing to Intersil's line of video crosspoint switches (HA4201, HA4600, HA4314, HA4404, HA4344), to create high performance, low power switchers and routers.

The HFA1105 is a low power, high performance upgrade for the CLC406. For a comparable amplifier with output disable or output limiting functions, please see the data sheets for the HFA1145 and HFA1135 respectively. For Military grade product, please refer to the HFA1145/883 data sheet.

Key Features
  • Low Supply Current 5.8mA
  • High Input Impedance 1MΩ
  • Wide -3dB Bandwidth 330MHz
  • Very Fast Slew Rate 1000V/µs
  • Gain Flatness (to 75MHz) ±0.1dB
  • Differential Gain 0.02%
  • Differential Phase 0.03 Degrees
  • Pin Compatible Upgrade for CLC406
Applications
  • Flash A/D Drivers
  • Video Switching and Routing
  • Professional Video Processing
  • Video Digitizing Boards/Systems
  • Multimedia Systems
  • RGB Preamps
  • Medical Imaging
  • Hand Held and Miniaturized RF Equipment
  • Battery Powered Communications
Typical Diagram
Application Notes
TitleTypeUpdatedSizeOther Languages
AN9787: An Intuitive Approach To Understanding Current Feedback AmplifiersPDF13 Nov 2014154 KB
AN9757: A Cookbook Approach to Single Supply DC-Coupled Op Amp DesignPDF13 Nov 201476 KB
AN9663: Converting From Voltage-Feedback to Current-Feedback AmplifiersPDF13 Nov 2014187 KB
AN9420: Current Feedback Amplifier Theory and ApplicationsPDF13 Nov 201483 KB
AN9202: Using the HFA1100, HFA1130 Evaluation FixturePDF13 Nov 201445 KB
AN1652: iSim:PE Users GuidePDF13 Nov 20141.45 MB
Datasheets
TitleTypeUpdatedSizeOther Languages
HFA1105 DatasheetPDF14 Nov 2014301 KB
Order Information
Part NumberPackage TypeWeight(g)PinsMSL RatingPeak Temp (°C)RoHS Status
HFA1105IB8 Ld SOIC0.07281240
HFA1105IB968 Ld SOIC T+R0.07281240
HFA1105IBZ8 Ld SOIC0.07283260RoHS
HFA1105IBZ968 Ld SOIC T+R0.07283260RoHS
HFA1105IP8 Ld PDIP0.548N/ANA
HFA11XXEVALN/A
HFA1105 Datasheet 14 Nov 2014
8 Ld SOIC T+R ISL84514
8 Ld PDIP ISL84542
HFA1105 Macromodel 31 Oct 2014
HFA1105
AN9787: An Intuitive Approach To Understanding Current Feedback Amplifiers 13 Nov 2014
AN9757: A Cookbook Approach to Single Supply DC-Coupled Op Amp Design 13 Nov 2014
AN9663: Converting From Voltage-Feedback to Current-Feedback Amplifiers 13 Nov 2014
AN9420: Current Feedback Amplifier Theory and Applications 13 Nov 2014
AN9202: Using the HFA1100, HFA1130 Evaluation Fixture 13 Nov 2014
AN1652: iSim:PE Users Guide 13 Nov 2014