The document describes the features and characteristics of the AD8138 low distortion differential ADC driver. The driver features easy-to-use single-ended-to-differential conversion, adjustable output common-mode voltage, externally adjustable gain, low harmonic distortion, fast settling, low input voltage noise, wide supply range, low power consumption, and high gain flatness. It is suitable for applications such as ADC drivers, single-ended-to-differential converters, IF and baseband gain blocks, differential buffers, and line drivers.
The AD8138 is a single‑ended‑to‑differential (or differential‑to‑differential) ADC driver that offers adjustable common‑mode voltage, externally adjustable gain, and very low harmonic distortion. It is built on Analog Devices' XFCB bipolar process and provides a –3 dB bandwidth of 320 MHz with a slew rate of 1150 V/µs.
The device is available in 8‑lead SOIC and MSOP packages, operates over a supply range of +3 V to +5 V, and consumes about 90 mW at 5 V. Detailed specifications, pin descriptions, absolute maximum ratings, and thermal information are provided for designers.
| Supply Voltage Range | +3 V to +5 V |
|---|---|
| Quiescent Power Consumption | 90 mW (at 5 V) |
| Input Voltage Noise | 5 nV/√Hz |
It consumes about 90 mW when powered from 5 V.
The device operates from +3 V up to +5 V.