February 2013
FAN4931
Ultra-Low Cost, Rail-to-Rail I/O, CMOS Amplifier
Features
Description
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200 µA Supply Current per Amplifier
FAN4931 is an ultra-low cost voltage feedback amplifier
with CMOS inputs that consumes only 200 µA of supply
current, while providing ±33 mA of output short-circuit
current. This amplifier is designed to operate from 2.5 V
to 5 V supplies. The common-mode voltage range
extends beyond the negative and positive rails.
3.7 MHz Bandwidth
Output Swing to within 10 mV of Either Rail
Input Voltage Range Exceeds the Rails
3 V/µs Slew Rate
The FAN4931 is designed on a CMOS process and
provides 3.7 MHz of bandwidth and 3 V / μs of slew rate
at a supply voltage of 5 V. This amplifier operates and is
reliable over a wide temperature range -40°C to
+125°C. The combination of extended temperature
operation, low power, rail-to-rail performance, low
voltage operation,and tiny package optimizes this
amplifier for use in many industrial, general purpose and
battery powered applications.
25 nV/√Hz Input Voltage Noise
FAN4931 Competes with LMV931; Available in
SC70-5 Package
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Fully Specified at +2.7 V and +5 V Supplies
Applications
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Motor Control
Portable / Battery-Powered Applications
PCMCIA, USB
Mobile Communications, Cellular Phones, Pagers
Notebooks and PDAs
Sensor Interface
A/D Buffer
Active Filters
Signal Conditioning
Portable Test Instruments
Figure 1. Frequency vs. Gain
Ordering Information
Part Number
Operating Temperature Range
Package
Packing Method
-40 to +125°C
FAN4931IP5X
5-Lead SC70 Package
Tape and Reel (3000)
© 2008 Fairchild Semiconductor Corporation
FAN4931 • Rev. 1.0.2
www.fairchildsemi.com
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