Analog Devices Unveils ADA4850-1/2 Video Amplifiers

Analog Devices Inc. (ADI, Wilmington, MA) introduced a pair of high-performance video amplifiers that offer low operating power and the low standby power, enabling longer battery life in portable multimedia consumer applications, such as audio visual players and digital video cameras.

The new family of low-power amplifiers, including the single ADA4850-1 and dual ADA4850-2, are designed for battery-powered video devices to efficiently playback high-quality video on televisions. When video display is not needed, the amplifiers have a patent-pending, low-power, standby mechanism that significantly reduces power consumption – consuming as little as one-tenth the power of the closest comparable devices.

The amplifiers save space and component costs by integrating the low-power standby feature in a 3 mm x 3 mm chip-scale package. The ADA4850 amplifiers minimize operating current to 2.7 mA maximum, and have a low standby current at less than 1 µA. The energy consumption breakthrough is achieved using a patent-pending, internal shut-down mechanism. The devices also include rail-to-rail outputs that allow driving line-terminated video lines on single-supply voltages as low as 2.7 V. The amplifiers have differential gain and phase of 0.04% and 0.06 °, respectively.

The ADA4850 video amplifiers are available in full production quantities. Both single-output and dual-output devices are offered in a 3 mm x 3 mm lead-frame chip-scale package. The single ADA4850-1 is priced at $0.55 per unit, and the dual ADA4850-2 is priced at $0.69 per unit in 1,000-piece quantities.