400 MHz CFA for video and high-speed signal chains
The National Semiconductor LMH6714MA is a single-channel current-feedback operational amplifier from the VIP10™ series, built for applications where slew rate and bandwidth dominate the selection. Its 1800V/µs slew rate and 400 MHz -3dB bandwidth make it a natural fit for video distribution amplifiers, high-speed ADC drivers, and pulse-processing front-ends where settling time matters more than DC precision. Current-feedback topology means the gain-bandwidth product isn't fixed — you trade closed-loop gain for bandwidth differently than a voltage-feedback amp, which is exactly what you want when driving 75 Ω cables or fast flash converters. The 70 mA output current per channel gives enough drive for multiple terminated lines.
Supply rails and power budget
Runs from a single 8V to 12.5V rail or split supplies of ±4V to ±6.25V. The 5.6 mA quiescent supply current is lean for a 400 MHz part — keeps the junction temperature under control in the 8-SOIC package even driving 70 mA into back-terminated loads. For a +12V single-supply video line driver, the LMH6714MA fits without needing a negative rail. Watch the input common-mode range on a single supply — current-feedback amps typically have tighter input headroom than rail-to-rail VFAs. The output swings close to the rails but doesn't reach them, so budget 1.2V to 1.5V of headroom each side under load.
Package, mounting, and compliance gotchas
RoHS non-compliant per the listing. That flags this part for legacy repair, military, or industrial applications with RoHS exemptions. If your BOM requires Pb-free assembly, the LMH6714MA isn't the drop-in — you'd need to check the RoHS-compliant suffix variant in the same family.
Lifecycle and sourcing position
The RoHS non-compliant status does limit where it can ship, but for exempt sectors (defence, aerospace, industrial) this part remains a standard catalog item through independent distribution. No direct replacement or pin-compatible second source is documented in the available records — the VIP10™ series has its own pinout and compensation scheme, so swapping in a different CFA requires board-level validation.