MAX4181ESA

Instrumentation, Op Amps, Buffer Amps Overview

The MAX4181ESA is a single-channel current-feedback amplifier from the MAX4180 family, designed for high-speed video and multimedia applications. It operates on dual supplies (±2.25V to ±5.5V) or a single +5V supply with a quiescent current of 1mA per amplifier. Optimized for closed-loop gains of +1 (0dB) or greater, it delivers a small-signal -3dB bandwidth of 270MHz and a large-signal bandwidth of 90MHz. Key performance metrics include a slew rate of 320V/µs, a settling time of 21ns to 0.1%, and differential gain/phase errors of 0.09%/0.01 degrees. The device features a low-power shutdown mode reducing current to 135µA.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Ultra-low power consumption with 1mA supply current per amplifier and a dedicated shutdown mode that reduces current to 135µA while placing outputs in a high-impedance state.
• High-speed current-feedback architecture providing a 270MHz small-signal bandwidth and fast 21ns settling time to 0.1% for precise signal reproduction.
• Excellent video specifications including minimal differential gain and phase errors, ensuring high fidelity in professional broadcast and surveillance systems.
• Flexible power supply operation supporting both single +5V and dual ±5V configurations within a miniature surface-mount package.

Instrumentation, Op Amps, Buffer Amps Applications

• Portable and battery-powered high-definition video and multimedia systems
• Surveillance video and broadcast professional TV systems
• High-speed analog-to-digital converter buffers

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix against official Analog Devices documentation to confirm package type and temperature range. Ensure compatibility with existing board layouts regarding pin assignments and thermal dissipation requirements. Confirm availability through authorized distributors as stock levels fluctuate. Cross-reference datasheet revision dates to ensure alignment with latest electrical characteristics.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select the MAX4181ESA when a gain of +1 (unity) is required, distinguishing it from the MAX4180 which is optimized for gains of +2 or greater. Consider the shutdown feature if power management during idle states is critical. Evaluate the 270MHz bandwidth against system frequency requirements. Compare output drive capabilities and noise density with other current-feedback amplifiers in the portfolio.

Instrumentation, Op Amps, Buffer Amps Part Context

The MAX4181ESA belongs to the MAX4180–MAX4187 family of single/dual/quad current-feedback amplifiers. This series combines high-speed performance with ultra-low power consumption. While the MAX4181 is a single-channel device, the family includes dual (MAX4184/MAX4185) and quad (MAX4186/MAX4187) variants. All share similar electrical characteristics but differ in channel count and compensation for specific closed-loop gains.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct substitutes within the same family include the MAX4180 (optimized for gain ≥2), MAX4184, MAX4185, MAX4186, and MAX4187. Verify that the replacement part matches the required closed-loop gain optimization and channel count. Ensure the alternative supports the same supply voltage range and package footprint.