ADA4927-1/ADA4927-2 is an ultralow distortion current feedback differential ADC driver providing a wide supply voltage of ±5V, 2.3GHz -3dB bandwidth, 0.1dB gain flatness, 5000V/μs slew rate, 10ns 0.1% settling time, and externally adjustable gain.
The ADA4927‑1 and ADA4927‑2 are low‑noise, ultralow‑distortion, high‑speed current‑feedback differential amplifiers designed for driving high‑performance ADCs up to 16‑bit resolution. They offer adjustable gain, wide supply operation (+5 V to ±5 V), and excellent output balance.
The document includes detailed specifications, pin‑out tables, layout and grounding recommendations, power‑down operation, and example circuits for high‑performance ADC driving. It also provides typical performance graphs, thermal data, and an ordering guide.
| Small‑signal bandwidth (±5 V operation) | 2300 MHz |
|---|---|
| Large‑signal bandwidth (±5 V operation) | 1500 MHz |
| Slew rate (±5 V operation) | 5000 V/µs |
| Settling time to 0.1 % (±5 V operation) | 10 ns |
| Input voltage noise (RTI, 100 kHz, G=28) | 1.4 nV/√Hz |
| Output voltage swing (single‑ended output) | ±3.8 V |
| Supply voltage operating range | 4.5 V to 11 V |
| Operating temperature range | −40 °C to +105 °C |
The device operates from 4.5 V up to 11 V supply voltage.
It settles to within 0.1 % in about 10 ns for a 2 V step.
The device is rated for operation from –40 °C to +105 °C.
The input voltage noise is about 1.4 nV/√Hz at 100 kHz with a gain of 28.