AD805X Op Amps

Analog Devices, Inc. introduces its AD8051/AD8052/AD8054 family of high-speed, low-cost, rail-to-rail amplifiers. They are well-suited for any cost-sensitive high-speed application - particularly those requiring low supply voltage and rail-to-rail output such as CCD imaging, CD or DVD, video line drivers, LCD displays or buffering ADCs. In addition, in quantities of 10,000, the cost per amplifier is as low as $0.66.

This amplifier family operates with +3 V to +12 V single supplies, and may also be used with +/- 5 V dual supplies. Designers can expect performance like 0.2 V to +4 V on a +5 V supply, fast overload recovery, bandwidth of 110 MHz or more, and slew rate of 140 V/ýs. Additionally, each amplifier consumes only 4.5 mA maximum while driving output signals to within 25 mV of either rail's voltage level. Even while driving a 50 pF capacitive load, these amplifiers settle to within 0.1 % in 30 ns.

This family falls just inside the McGoldrick definition of rail-to-rail when used with +3-V supplies (1% being 30 mV cf the specified 25 mV.) This is not necessarily a technology-breakthrough part but it is going to sell in major volumes. The performance:cost ratio and the settling behaviors will make them ideal choices for the consumer products involving medium to high-speed data and they will certainly appear in DVD and CD players and in some camcorder applications; it is also a part that might be looked at closely for sensor applications where speed is a consideration while the absolutely-lowest power consumption is not.

The AD8051 single amplifier is offered in a SOT 23-5 as well as the standard SOIC package; the AD8052 dual in a microSOIC package as well as in SOIC; and the Ad8054 quad in a 14-lead SOIC or TSSOP. In 10,000-piece quantities, the AD8051 is $0.79, the AD8052 is $1.47 and the AD8054 is $2.62.