MAX44260 Datasheet, PDF (1/14 Pages) Maxim Integrated Products – 1.8V 15MHz Low-Offset, Low-Power, Rail-to-Rail I/O Op Amps 500fA Low Input Bias Current

19-5873; Rev 0; 6/11
EVALUATION KIT AVAILABLE
MAX44260/MAX44261
1.8V 15MHz Low-Offset,
Low-Power, Rail-to-Rail I/O Op Amps
General Description
The MAX44260/MAX44261 offer a unique combination of
high speed, precision, low noise, and low-voltage opera-
tion making them ideally suited for a large number of
signal processing functions such as filtering and ampli-
fication of signals in portable and industrial equipment.
The amplifiers feature an input offset of less than 50FV
and a high-gain bandwidth product of 15MHz while
maintaining a low 1.8V supply rail. The devices’ rail-to-
rail input/outputs and low noise guarantee maximum
dynamic range in demanding applications such as 12- to
14-bit SAR ADC drivers. Unlike traditional rail-to-rail input
structures, input crossover distortion is absent due to an
optimized input stage with an ultra-quiet charge pump.
The MAX44260 includes a fast-power-on shutdown mode
for further power savings. The MAX44261 offers a unique
on-demand calibration pin where the user can invoke
self-trimming of the input offset voltage.
The family of parts operates from a supply range of 1.8V
to 5.5V over the -40NC to +125NC temperature range and
can operate down to 1.7V over the 0NC to +70NC tem-
perature range. The MAX44260/MAX44261 are available
in small, 6-pin SC70 packages.
Ordering Information appears at end of data sheet.
Features
S Low 1.8V Supply Rail Over the -40°C to +125°C
Range
1.7V Supply Rail Over the 0°C to +70°C Range
S 15MHz Unity-Gain Bandwidth
S Low 12.7nV/√Hz Input Voltage-Noise Density
S Low 1.2fA/√Hz Input Current-Noise Density
S Low 50µV (max) V_OS at +25°C
S On-Demand V_OS Self-Calibration (MAX44261)
S 500fA Low Input Bias Current
S 750µA Quiescent Current per Amplifier
S < 1µA Supply Current in Shutdown
S Small, 2mm x 2mm SC70 Packages
S Low 110dB Total Harmonic Distortion
Applications
Notebooks
3G/4G Handsets
Portable Media Players
Portable Medical Instruments
Battery-Operated Devices
Analog-to-Digital Converter Buffers
Transimpedance Amplifiers
General-Purpose Signal Processing
Typical Application Circuit
2.4kI
22kI
330pF
15nF
+3.3V
MAX44260
10kI
3.3nF
ADC
MAX11645
CORNER FREQUENCY = 10kHz
SALLEN-KEY FILTER
For related parts and recommended products to use with this part, refer to: www.maxim-ic.com/MAX44260.related
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For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
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