MAX9636_11 Datasheet, PDF (1/16 Pages) Maxim Integrated Products – 3V/5V Low-Power, Low-Noise, CMOS, Rail-to-Rail I/O Op Amps

19-5228; Rev 2; 1/11
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3V/5V Low-Power, Low-Noise, CMOS,
Rail-to-Rail I/O Op Amps
General Description
The MAX9636/MAX9637/MAX9638 are single-supply,
CMOS input op amps featuring wide bandwidth at low
quiescent current, making them suitable for a broad
range of battery-powered applications such as portable
medical instruments, portable media players, and smoke
detectors. A combination of extremely low input bias
currents, low input current noise and low input voltage
noise allows interface to high-impedance sources such
as photodiode and piezoelectric sensors. These devices
are also ideal for general-purpose signal processing
functions such as filtering and amplification in a broad
range of portable, battery-powered applications.
The ICs feature a maximized ratio of gain bandwidth
(GBW) to supply current. The devices operate from a
single 2.1V to 5.5V supply at a typical quiescent supply
current of 36µA. For additional power conservation, the
MAX9636 and MAX9638 offer a low-power shutdown
mode that reduces supply current to 1µA and places the
amplifiers’ outputs into a high-impedance state.
The ICs are specified over the automotive operating tem-
perature range (-40°C to +125°C). The single is offered
in a space-saving, 6-pin SC70 package, while the dual is
offered in tiny, 8-pin SC70 and 10-pin UTQFN packages.
Applications
Portable Medical Instruments
Piezoelectric Transducer Amplifiers
Smoke Detectors
Battery-Powered Devices
General-Purpose Signal Conditioning
Notebooks
Portable Media Players
Features
S Low Input Voltage-Noise Density: 38nV/√Hz
S Low Input Current-Noise Density: 0.9fA/√Hz
S Ultra-Low 0.1pA Bias Current
S Low 36µA Quiescent Current
S 1µA Quiescent Current in Shutdown
S Wide 1.5MHz Bandwidth
S Single-Supply Operation VDD = 2.1V to 5.5V
S Available in Tiny 6-Pin SC70, 8-Pin SC70, and
10-Pin UTQFN Packages
S -40°C to +125°C Operating Temperature Range
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
MAX9636AXT+
-40NC to +125NC 6 SC70
MAX9637AXA+
-40NC to +125NC 8 SC70
MAX9638AVB+
-40NC to +125NC 10 UTQFN
+Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
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For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.