Low-distortion unity-gain buffer amplifier uses a monolithic closed-loop architecture for wideband analog signal buffering. It provides 0.99 V/V typical gain, 750 MHz typical small-signal bandwidth, and 1200 V/µs typical slew rate. Harmonic distortion is rated to -80 dBc at 4.3 MHz and -66 dBc at 20 MHz for a 2 V p-p signal. The device operates from ±5 V supplies over a -40 °C to +85 °C specified temperature range and is intended for flash ADC driving, IF and communications buffering, impedance transformation, and line-driving applications.
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| Amplifier type | Closed-loop unity-gain buffer |
| Typical gain | 0.990V/V |
| Small-signal bandwidth | 750 typicalMHz |
| Large-signal bandwidth | 120 typical at 5 V p-pMHz |
| Slew rate | 1200 typicalV/µs |
| Output offset voltage | ±3 typical, ±8 maximummV |
| Input bias current | ±2 typical, ±25 maximumµA |
| Input resistance | 450 typicalkΩ |
| Input capacitance | 1.0 typicalpF |
| Output voltage range | ±3.6 typicalV |
| Output current into 50 Ω load | 50 minimummA |
| Output impedance at DC | 0.6 typicalΩ |
| Power supply rejection ratio | 55 typicaldB |
| Second harmonic distortion at 4.3 MHz | -80 typicaldBc |
| Second harmonic distortion at 20 MHz | -66 typicaldBc |
| Third harmonic distortion at 20 MHz | -75 typicaldBc |
| Spectral input noise voltage | 2.4 typical at 10 MHznV/√Hz |
| Settling time to 0.1% | 6 typical at 2 V stepns |
| Specified temperature range | -40 to +85°C |
| Supply voltage | ±5 nominalV |
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