The AD8264 is a quad, 235 MHz, DC-coupled VGA and differential output amplifier from Analog Devices. The device features low noise, wide bandwidth, low power, and is suitable for applications such as multichannel data acquisition, positron emission tomography, gain trim, industrial and medical ultrasound, and radar receivers.
The AD8264 is a 4‑channel, linear‑in‑dB, general‑purpose variable gain amplifier with a preamplifier and differential output buffer. It offers DC coupling, a wide bandwidth, and a gain scaling factor of 20 dB/V, making it suitable for pulse processing, ultrasound, radar, and data‑acquisition applications.
The datasheet provides detailed specifications such as bandwidth, gain range, noise performance, supply requirements, thermal ratings, pin functions, and typical performance curves, along with ordering information for the 40‑lead LFCSP package.
| Gain range | 6 dB to 30 dB |
|---|---|
| Supply Voltage | +2.5 V to +5 V |
| Quiescent Current (Vs=+2.5 V) | 65 mA typical |
| Power Dissipation (Vs=+2.5 V) | 395 mW |
| Input Voltage Noise | 2.3 nV/√Hz |
| Input Current Noise | 2 pA/√Hz |
| Gain scaling factor | 20 dB/V |
| Operating Temperature Range | –40 °C to +105 °C |
The AD8264 operates from +2.5 V to +5 V.
It is a 4‑channel variable gain amplifier.
The gain can be set from 6 dB to 30 dB.