Analog Devices Inc. (ADI, Wilmington, MA) announced its new AD8615/16/18 family of single-, dual- and quad-operational amplifiers (op amps) with rail-to-rail inputs and outputs that deliver low noise and low power at the higher speeds required by communications applications, and the higher output drive capability necessary for audio applications.
The devices offer the DigiTrim digital trimming technique. Featuring 24 MHz bandwidth and 0.002% total harmonic distortion (THD), the new amplifier family is twice as fast and has 60% lower THD than the previous generation. Audio applications benefit from the family’s higher output drive, which increases current capacity by up to 50% to drive heavy loads in portable equipment such as cell phone headsets.
The AD8615/AD8616/AD8618 devices operate from single 2.7 V to 5 V supplies, and feature reduced offset voltage and offset-related errors, low input-voltage noise and low input-current noise. The combination of 24 MHz bandwidth, 65 µV max offset voltage, 8 nV/square root Hz noise, and 1 pA max input bias current make the amplifiers suitable for a wide variety of applications, including filters, integrators, photodiode amplifiers, high impedance sensors used in optical communications, GPS receivers, data acquisition, industrial controls and medical instrumentation.
The family is specified over the extended industrial temperature range of -40 °C +125 °C. The single AD8615 is now sampling with production quantities available in September 2004. The dual AD8616 and quad AD8618 are already fully released. The AD8615 is available in five-lead TSOT packaging, the AD8616 is available in eight-lead MSOP and SOIC packaging, and the AD8618 is available in 14-lead SOIC and TSSOP packaging. Pricing for the AD8615, AD8616 and AD8618 starts at $0.75, $1.15 and $2.05 per unit, respectively, in 1,000-piece quantities.