The AD8045 from Analog Devices is a voltage‑feedback operational amplifier offering ultra‑low distortion (SFDR −101 dBc @ 5 MHz) and very low noise (3 nV/√Hz). It operates from a wide supply range (3.3 V to 12 V) and provides a unity‑gain stable bandwidth of 1 GHz with a slew rate of 1350 V/µs, making it suitable for measurement equipment, IF and base‑band amplifiers, active filters, and ADC drivers.
The datasheet includes detailed specifications for both ±5 V and +5 V supply configurations, absolute maximum ratings, thermal resistance, pin‑out diagrams for LFCSP and SOIC packages, and extensive performance graphs such as frequency response, harmonic distortion, and output noise. It also offers layout guidelines for PCB design, including recommendations for power‑supply bypass, grounding, and exposed‑pad handling to optimize high‑frequency performance. This manual is written in Japanese.
| Input Voltage Noise | 3 nV/√Hz |
|---|---|
| –3 dB Bandwidth (G=+1, VOUT=2 V p‑p) | 1 GHz |
| Slew Rate | 1350 V/µs |
| Settling Time to 0.1 % | 7.5 ns |
| Supply Voltage Range | 3.3 V – 12 V |
| Quiescent Current (±5 V supply) | 15 mA |
| Input Offset Voltage (max) | 1.0 mV |
| Maximum Supply Voltage | 12.6 V |
The absolute maximum supply voltage is 12.6 V.
The –3 dB bandwidth at unity gain (G = +1) is 1 GHz.