Cascaded LMH5401 and LMH6401 Reference Design

(ACTIVE) TIDA-00654

Description & Features

Technical Documents

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Description

A wideband single-ended to differential conversion reference design in both DC- and AC- coupled applications is presented. The design evaluates the performance of the LMH5401 and LMH6401 cascade and offers insight into the design.

Features
  • 4.5GHz bandwidth with 30dB maximum total voltage gain
  • Digitally-controlled gain range of 32dB in 1dB steps
  • 50-Ω Input DC- or AC-coupled single-ended to differential conversion
  • Output IP3 at RL = 200Ω:
    • 40dBm at 500MHz
    • 33dBm at 1GHz
  • Output common-mode control capability: VMID ± 0.5V
  • Compact design ideal for portable application with PD = 645mW

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Schematic/Block Diagram

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Test Data

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Design Files

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Bill of Materials (BOM)

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TI Devices (4)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LMH3401  7-GHz, Ultra-Wideband, Fully Differential Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
LMH5401  8GHz Ultra Wideband Fully Differential Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
LMH6401  4.5 GHz Ultra Wideband Digital Variable Gain Amplifier  Amplifiers  Sample & Buy View Design Kits & Evaluation Modules
LP5900  150mA Ultralow-Noise LDO for RF and Analog Circuits Requires No Bypass Capacitor  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LMH3401 Download Download
LMH5401 Download Download
LP5900 Download -
Download Download

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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views
PDF 1662 09 Sep 2015 30
Design files (4)
Title Abstract Type Size (KB) Date Views
ZIP 933 15 Sep 2015 22
PDF 1730 15 Sep 2015 14
PDF 116 15 Sep 2015 8
PDF 525 15 Sep 2015 55

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