The ADA4938-x is a low noise, ultralow distortion, high speed differential ADC driver.
The ADA4938‑x family are ultralow distortion, high‑speed differential ADC drivers with extremely low harmonic distortion and low input voltage noise. They support both dual‑supply (+5 V/‑5 V) and single‑supply (+5 V) operation, offering adjustable gain and output common‑mode voltage for driving high‑performance ADCs.
The handbook includes detailed specifications such as 3 dB bandwidth up to 1 GHz, slew rate of 4700 V/µs, input voltage noise of 2.6 nV/√Hz, and operating temperature range from –40 °C to +85 °C. Pin configurations, functional block diagrams, and mechanical package options (16‑lead LFCSP for ADA4938‑1, 24‑lead LFCSP for ADA4938‑2) are also provided.
| Input Voltage Noise (10 MHz) | 2.6 nV/√Hz |
|---|---|
| Supply Voltage Range (Dual‑Supply) | +5 V / –5 V |
The input voltage noise is 2.6 nV/√Hz measured at 10 MHz.