AD8038/AD8039 are low power, 350 MHz voltage feedback amplifiers with features such as low power consumption, high speed, and low noise.
The AD8038 (single) and AD8039 (dual) are high‑speed voltage‑feedback amplifiers offering 350 MHz bandwidth, 425 V/µs slew rate, and ultra‑low quiescent current (≈1 mA per amplifier). They provide low noise performance (8 nV/√Hz voltage noise and 600 fA/√Hz current noise at 100 kHz) and operate from 3 V to 12 V, making them suitable for battery‑powered instrumentation, filters, A/D drivers, level shifting, buffering, and photomultiplier interfaces.
Available in 8‑lead SOIC, 5‑lead SC70 (AD8038) and 8‑lead SOT‑23 (AD8039) packages, the devices support a wide input common‑mode range and can drive capacitive loads up to 20 pF with minimal overshoot. The datasheet includes detailed specifications, absolute maximum ratings, power‑dissipation curves, and ordering information.
| Slew Rate (G=+1) | 425 V/µs |
|---|---|
| Input Voltage Noise (100 kHz) | 8 nV/√Hz |
| Input Current Noise (100 kHz) | 600 fA/√Hz |
| Quiescent Current per Amplifier | 1 mA typical (1.5 mA max) |
| Supply Voltage Range | 3 V to 12 V |
| Power Supply Rejection Ratio | -71 dB (positive supply) |
They operate from 3 V up to 12 V.
The quiescent current is about 1 mA per amplifier (maximum 1.5 mA).
AD8038 is offered in 8‑lead SOIC and 5‑lead SC70 packages; AD8039 is available in 8‑lead SOT‑23 and 8‑lead SOIC packages.