Ultralow-noise amplifier is unity-gain-stable

The ADA4899-1 ultralow-noise amplifier is unity-gain-stable and suits use as a buffer. The device features a 250-MHz bandwidth, a 310V/µsec slew rate, and a 600-MHz 23-dB bandwidth. The vendor's proprietary pinout provides output on both sides of the part to minimize distortion. This eight-pin part does not interchange with conventional pinout parts. Features include a –117-dB distortion at 1 MHz, a low-noise typical 14.7-mA supply current, and an active-low disable pin. The device has a 117-dBc spurious-free-dynamic range at 1 MHz. In addition, the device offers a 0.23-mV offset and a 1-µA input-bias current. The ADA4800-1 suits use as an analog-to-digital driver, an IF or baseband amplifier, or a DAC buffer. It also targets instrumentation and optical electronics. The amplifier costs $1.89 (1000).

Analog Devices, www.analog.com