Exar introduces low power rail-to-rail amplifiers

Exar Corporation has introduced two new operational amplifier families, the XR1008/XR2008 and XR1009/XR2009. The XR1008/XR2008 are single/dual amplifiers offering 75MHz bandwidth while consuming only 505µA supply current and the lower power XR1009/XR2009 single/dual amplifiers provide 35MHz at only 208µA supply current. 

When compared to other competing products on the market today, the XR1008/XR2008 devices offer 6 times the bandwidth and the even lower power XR1009/XR2009 devices offer 3 times the bandwidth.

The XR1008/XR2008 single/dual amplifiers target industrial applications such as smart meters, ultrasonic heat meters and other applications requiring high speed and low power.  The XR1009/XR2009 are single/dual amplifiers with an ultra-low 200µA supply current for portable instrumentation and applications such as interactive whiteboards.

Offering what the company claims is the best available combination of power consumption and performance, the XR1008/XR2008 devices help system designers meet their ever-constricting power budget without sacrificing performance. All four devices support inputs that extend 300mV beyond the negative supply voltage and provide rail-to-rail outputs. Slew rates and input voltage noise are specified at 50V/µs and 12nV/vHz for the XR1008/XR2008 and 27V/µs and 21nV/vHz for the XR1009/XR2009.

“Designers looking for low power amplifiers do not need to sacrifice speed or performance,” said Dale Wedel, vice president of High Performance Analog products at Exar.  “These rail-to-rail amplifiers minimize power dissipation in high channel count applications and offer superior electrical characteristic performance, helping our customers design lower power next generation platforms.”



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