The ADA4899-1 is a high performance, single supply, low noise, high speed op amp with 1 nV/√Hz of ultralow noise and 117 dBc of ultralow distortion. The device is suitable for applications such as analog-to-digital drivers, instrumentation, filters, IF and baseband amplifiers, DAC buffers and optical electronics.
The ADA4899-1 op‑amp from Analog Devices offers ultralow voltage noise (1 nV/√Hz) and distortion (‑117 dBc at 1 MHz) while remaining unity‑gain stable. It operates from a wide supply range (5 V to 12 V) and draws only 14.7 mA quiescent current, making it suitable for high‑performance 16‑bit and 18‑bit systems.
The device is available in 8‑lead SOIC and 3 mm × 3 mm LFCSP packages with an exposed metal paddle for improved thermal performance. It supports an input bias current cancellation mode that reduces bias current by a factor of 60, and it is rated for an extended industrial temperature range (‑40 °C to +125 °C).
| Unity‑gain stability | Yes |
|---|---|
| Voltage noise density | 1 nV/√Hz |
| Slew rate | 310 V/µs |
| 3‑dB bandwidth (G=+1) | 600 MHz |
| Supply voltage range | 5 V to 12 V |
| Quiescent supply current | 14.7 mA |
| Input offset voltage | 230 pV max |
| Input bias current | 100 nA |
The op‑amp has a 3‑dB bandwidth of 600 MHz at unity gain.
It draws a typical quiescent supply current of 14.7 mA.
The input voltage noise density is 1 nV/√Hz at 100 kHz.
The device can be powered from 5 V up to 12 V.