XR1009 Datasheet, PDF (1/16 Pages) Exar Corporation – 0.2mA, 35MHz Rail-to-Rail Amplifiers

XR1009, XR2009
0.2mA, 35MHz Rail-to-Rail Amplifiers
General Description
The XR1009 (single) and XR2009 (dual) are ultra-low power, low cost,
voltage feedback ampli ers. These ampli ers 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.
F E AT U R E S
■ 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
A P P L I C AT I O N S
■ Portable/battery-powered applications
■ Mobile communications, cell phones,
pagers
■ ADC buffer
■ Active lters
■ Portable test instruments
■ Signal conditioning
■ Medical equipment
■ Portable medical instrumentation
■ Interactive whiteboards
Frequency Response
Output Swing vs. R_L
+2.7
6.8μF
+
In
R_IN
0.1μF
+
XR1009
-
R_f
R_g
Out
R_OUT
4.85
4.80
4.75
4.70
4.65
4.60
4.55
1
10
100
R_L (k1)
© 2014 Exar Corporation
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exar.com/XR1009
Rev 1B