0.2mA, 35MHz Rail-to-Rail Amplifier



The XR1009 (single) and XR2009 (dual) are ultra-low power, low cost, voltage feedback amplifiers. These amplifiers use only 208μA of supply current and are designed to operate from a supply range of 2.5V to 5.5V (±1.25 to ±2.75). The input voltage range extends 300mV below the negative rail and 1.2V below the positive rail.
The XR1009 and XR2009 offer superior dynamic performance with a 35MHz small signal bandwidth and 27V/μs slew rate. The combination of low power, high bandwidth, and rail-to-rail performance make the XR1009 and XR2009 well suited for battery-powered communication/ computing systems.

Additional information


208μA supply current
35MHz bandwidth
Input voltage range with 5V supply: -0.3V to 3.8V
Output voltage range with 5V supply: 0.08V to 4.88V
27V/μs slew rate
21nV/√Hz input voltage noise
13mA linear output current
Fully specified at 2.7V and 5V supplies
Replaces MAX4281


Portable/battery-powered applications
Mobile communications, cell phones, pagers
ADC buffer
Active filters
Portable test instruments
Signal conditioning
Medical equipment
Portable medical instrumentation
Interactive whiteboards

Ordering Information

Part Number Package Temp Range Packaging Method Lead Free
XR1009IST5X TSOT-5 -40°C to +125°C T&R Yes
XR1009IST5MTR TSOT-5 -40°C to +125°C Mini T&R Yes
XR1009IST5EVB Eval Board
XR1009ISO8X SOIC-8 -40°C to +125°C T&R Yes
XR1009ISO8MTR SOIC-8 -40°C to +125°C Mini T&R Yes
XR1009ISO8EVB Eval Board