MAX44259 Datasheet, PDF (1/14 Pages) Maxim Integrated Products – Low-Power, Rail-to-Rail I/O Op Amps

EVALUATION KIT AVAILABLE
MAX44259/MAX44260/MAX44261/MAX44263
1.8V, 15MHz Low-Offset,
Low-Power, Rail-to-Rail I/O Op Amps
General Description
The MAX44259/MAX44260/MAX44261/MAX44263 offer a
unique combination of high speed, precision, low noise,
and low-voltage operation making them ideally suited
for a large number of signal processing functions such
as filtering and amplification 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 MAX44263
is a dual amplifier.
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
temperature range. The MAX44259 is offered in a 5-pin
SOT23 package. The MAX44260/MAX44261 are avail-
able in small, 6-pin SC70 packages. The MAX44260 is
also available in a 1mm x 1.5mm thin µDFN (ultra-thin
LGA)package. The MAX44263 is available in a small
8-pin SC70 package.
Visit www.maximintegrated.com/products/patents for
product patent marking information.
15nF
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) VOS 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 and 1mm x 1.5mm
Thin µDFN (MAX44260) and SOT23 (MAX44259)
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
Ordering Information appears at end of data sheet.
Typical Application Circuit
+3.3V
2.4kI
22kI
330pF
MAX44260
10kI
3.3nF
ADC
MAX11645
CORNER FREQUENCY = 10kHz
SALLEN-KEY FILTER
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-5873; Rev 7; 9/14