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MAX4040ESAMAXIMN/a10avaiSingle/Dual/Quad / Low-Cost / SOT23 / Micropower Rail-to-Rail I/O Op Amps
MAX4040EUAMAXIMN/a72avaiSingle/Dual/Quad / Low-Cost / SOT23 / Micropower Rail-to-Rail I/O Op Amps
MAX4040EUK-T |MAX4040EUKTMAXIM美信N/a10000avaiSingle/Dual/Quad / Low-Cost / SOT23 / Micropower Rail-to-Rail I/O Op Amps
MAX4040EUK-T |MAX4040EUKTMAXIM N/a900avaiSingle/Dual/Quad / Low-Cost / SOT23 / Micropower Rail-to-Rail I/O Op Amps
MAX4041ESAMAXIMN/a21avaiSingle/Dual/Quad / Low-Cost / SOT23 / Micropower Rail-to-Rail I/O Op Amps
MAX4041EUAMAXIM ?N/a20avaiSingle/Dual/Quad / Low-Cost / SOT23 / Micropower Rail-to-Rail I/O Op Amps
MAX4042ESAMAXN/a15avaiSingle/Dual/Quad / Low-Cost / SOT23 / Micropower Rail-to-Rail I/O Op Amps
MAX4042ESAMAXIMN/a100avaiSingle/Dual/Quad / Low-Cost / SOT23 / Micropower Rail-to-Rail I/O Op Amps
MAX4042EUAMAXIM ?N/a44avaiSingle/Dual/Quad / Low-Cost / SOT23 / Micropower Rail-to-Rail I/O Op Amps
MAX4043ESDMAXIMN/a3avaiSingle/Dual/Quad / Low-Cost / SOT23 / Micropower Rail-to-Rail I/O Op Amps
MAX4043EUBMAXIMN/a100avaiSingle/Dual/Quad / Low-Cost / SOT23 / Micropower Rail-to-Rail I/O Op Amps
MAX4044ESDMAXIMN/a16avaiSingle/Dual/Quad / Low-Cost / SOT23 / Micropower Rail-to-Rail I/O Op Amps


MAX4040EUK-T ,Single/Dual/Quad / Low-Cost / SOT23 / Micropower Rail-to-Rail I/O Op Ampsapplications.Ordering InformationThe MAX4040 is offered in a space-saving 5-pin SOT23PIN- SOT packa ..
MAX4040EUK-T ,Single/Dual/Quad / Low-Cost / SOT23 / Micropower Rail-to-Rail I/O Op Ampsapplications.Ordering InformationThe MAX4040 is offered in a space-saving 5-pin SOT23PIN- SOT packa ..
MAX4041ESA ,Single/Dual/Quad / Low-Cost / SOT23 / Micropower Rail-to-Rail I/O Op AmpsFeaturesThe MAX4040–MAX4044 family of micropower op amps' Single-Supply Operation Down to +2.4Voper ..
MAX4041ESA+ ,Single/Dual/Quad, Low-Cost, SOT23, Micropower Rail-to-Rail I/O Op AmpsMAX4040–MAX404419-1377; Rev 1; 9/05Single/Dual/Quad, Low-Cost, SOT23, Micropower Rail-to-Rail I/O O ..
MAX4041EUA ,Single/Dual/Quad / Low-Cost / SOT23 / Micropower Rail-to-Rail I/O Op AmpsMAX4040–MAX404419-1377; Rev 0; 5/98Single/Dual/Quad, Low-Cost, SOT23, Micropower Rail-to-Rail I/O O ..
MAX4042ESA ,Single/Dual/Quad / Low-Cost / SOT23 / Micropower Rail-to-Rail I/O Op AmpsFeaturesThe MAX4040–MAX4044 family of micropower op amps' Single-Supply Operation Down to +2.4Voper ..
MAX7545ALP ,CMOS 12-BIT BUFFERED MULTIPLYING DACsfeatures a 100ns max write pulse width (150ns for MAX7645) which allows inter- facing to a wide r ..
MAX754CPE ,CCFL Backlight and LCD Contrast ControllersMAX753/MAX75419-0197; Rev 1; 1/95CCFL Backlight andLCD Contrast Controllers_______________
MAX754CSE ,CCFL Backlight and LCD Contrast ControllersBlock Diagram located at end of data sheet.____ Maxim Integrated Products 1 for or literature.CCF ..
MAX754ESE ,CCFL Backlight and LCD Contrast ControllersGeneral Description ________
MAX755CPA ,-5V/Adjustable, Negative-Output,Inverting, Current-mode PWM RegulatorsApplications Board-Level DC-DC Conversion Battery-Powered Equipment Computer Peripherals Ty ..
MAX755CSA ,-5V/Adjustable, Negative-Output,Inverting, Current-mode PWM Regulators19-0017; Rev 1; 9/92 -5 V/Adjustable, Inverting, Curren


MAX4040ESA-MAX4040EUA-MAX4040EUK-T-MAX4041ESA-MAX4041EUA-MAX4042ESA-MAX4042EUA-MAX4043ESD-MAX4043EUB-MAX4044ESD
Single/Dual/Quad / Low-Cost / SOT23 / Micropower Rail-to-Rail I/O Op Amps
________________General Description
The MAX4040–MAX4044 family of micropower op amps
operates from a single +2.4V to +5.5V supply or dual
±1.2V to ±2.75V supplies and have Rail-to-Rail®input
and output capabilities. These amplifiers provide a
90kHz gain-bandwidth product while using only 10µA of
supply current per amplifier. The MAX4041/MAX4043
have a low-power shutdown mode that reduces supply
current to less than 1µA and forces the output into a
high-impedance state. The combination of low-voltage
operation, rail-to-rail inputs and outputs, and ultra-low
power consumption makes these devices ideal for any
portable/battery-powered system.
These amplifiers have outputs that typically swing to
within 10mV of the rails with a 100kΩload. Rail-to-rail
input and output characteristics allow the full power-
supply voltage to be used for signal range. The combi-
nation of low input offset voltage, low input bias current,
and high open-loop gain makes them suitable for low-
power/low-voltage precision applications.
The MAX4040 is offered in a space-saving 5-pin SOT23
package. All specifications are guaranteed over the
-40°C to +85°C extended temperature range.
________________________Applications

Battery-Powered Strain Gauges
SystemsSensor Amplifiers
Portable/Battery-PoweredCellular Phones
Electronic EquipmentNotebook Computers
Digital ScalesPDAs
____________________________Features
Single-Supply Operation Down to +2.4VUltra-Low Power Consumption:
10µA Supply Current per Amplifier
1µA Shutdown Mode (MAX4041/MAX4043)
Rail-to-Rail Input Common-Mode RangeOutputs Swing Rail-to-RailNo Phase Reversal for Overdriven Inputs200µV Input Offset VoltageUnity-Gain Stable for Capacitive Loads up to 200pF90kHz Gain-Bandwidth ProductAvailable in Space-Saving 5-Pin SOT23 and
8-Pin µMAX Packages
MAX4040–MAX4044
Single/Dual/Quad, Low-Cost, SOT23,
Micropower Rail-to-Rail I/O Op Amps

19-1377; Rev 0; 5/98
Ordering Information

Rail-to-Rail is a registered trademark of Nippon Motorola Ltd.
Pin ConfigurationsSelector Guide
MAX4040–MAX4044
Single/Dual/Quad, Low-Cost, SOT23,
Micropower, Rail-to-Rail I/O Op Amps
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS—TA= +25°C

(VCC= +5.0V, VEE= 0, VCM= 0, VOUT= VCC/ 2, SHDN= VCC, RL= 100kΩtied to VCC/ 2, unless otherwise noted.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Supply Voltage (VCCto VEE)..................................................+6V
All Other Pins...................................(VCC+ 0.3V) to (VEE- 0.3V)
Output Short-Circuit Duration to VCCor VEE..............Continuous
Continuous Power Dissipation (TA= +70°C)
5-Pin SOT23 (derate 7.1mW/°C above +70°C).............571mW
8-Pin µMAX (derate 4.1mW/°C above +70°C)..............330mW
8-Pin SO (derate 5.88mW/°C above +70°C).................471mW
10-Pin µMAX (derate 5.6mW/°C above +70°C)...........444mW
14-Pin SO (derate 8.33mW/°C above +70°C)..............667mW
Operating Temperature Range...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +160°C
Lead Temperature (soldering, 10sec).............................+300°C
Single/Dual/Quad, Low-Cost, SOT23,
Micropower, Rail-to-Rail I/O Op Amps
ELECTRICAL CHARACTERISTICS—TA= +25°C (continued)

(VCC= +5.0V, VEE= 0, VCM= 0, VOUT= VCC/ 2, SHDN= VCC, RL= 100kΩtied to VCC/ 2, unless otherwise noted.)
MAX4040–MAX4044
ELECTRICAL CHARACTERISTICS—TA= TMINto TMAX

(VCC= +5.0V, VEE= 0, VCM= 0, VOUT= VCC/ 2, SHDN= VCC, RL= 100kΩtied to VCC/ 2, unless otherwise noted.) (Note 2)
__________________________________________Typical Operating Characteristics
(VCC= +5.0V, VEE= 0, VCM= VCC / 2, SHDN= VCC, RL= 100kΩto VCC / 2, TA= +25°C, unless otherwise noted.)
MAX4040–MAX4044
Single/Dual/Quad, Low-Cost, SOT23,
Micropower, Rail-to-Rail I/O Op Amps
ELECTRICAL CHARACTERISTICS—TA= TMINto TMAX(continued)

(VCC= +5.0V, VEE= 0, VCM= 0, VOUT= VCC/ 2, SHDN= VCC, RL= 100kΩtied to VCC/ 2, unless otherwise noted.) (Note 2)
Note 1:
Tested for VEE≤VOUT≤VCC. Does not include current through external feedback network.
Note 2:
All devices are 100% tested at TA= +25°C. All temperature limits are guaranteed by design.
MAX4040–MAX4044
Single/Dual/Quad, Low-Cost, SOT23,
Micropower, Rail-to-Rail I/O Op Amps
Typical Operating Characteristics (continued)

(VCC= +5.0V, VEE= 0, VCM= VCC / 2, SHDN= VCC, RL= 100kΩto VCC / 2, TA= +25°C, unless otherwise noted.)
MAX4040–MAX4044
Single/Dual/Quad, Low-Cost, SOT23,
Micropower, Rail-to-Rail I/O Op Amps
____________________________________Typical Operating Characteristics (continued)

(VCC= +5.0V, VEE= 0, VCM= VCC / 2, SHDN= VCC, RL= 100kΩto VCC / 2, TA= +25°C, unless otherwise noted.)
MAX4040–MAX4044
Single/Dual/Quad, Low-Cost, SOT23,
Micropower, Rail-to-Rail I/O Op Amps
____________________________________Typical Operating Characteristics (continued)

(VCC= +5.0V, VEE= 0, VCM= VCC / 2, SHDN= VCC, RL= 100kΩto VCC / 2, TA= +25°C, unless otherwise noted.)
MAX4040–MAX4044
Single/Dual/Quad, Low-Cost, SOT23,
Micropower, Rail-to-Rail I/O Op Amps
_______________Detailed Description
Rail-to-Rail Input Stage

The MAX4040–MAX4044 have rail-to-rail inputs and
rail-to-rail output stages that are specifically designed
for low-voltage, single-supply operation. The input
stage consists of separate NPN and PNP differential
stages, which operate together to provide a common-
mode range extending to both supply rails. The
crossover region of these two pairs occurs halfway
between VCCand VEE. The input offset voltage is typi-
cally 200µV. Low operating supply voltage, low supply
current, rail-to-rail common-mode input range, and rail-
to-rail outputs make this family of operational amplifiers
an excellent choice for precision or general-purpose,
low-voltage battery-powered systems.
Since the input stage consists of NPN and PNP pairs,
the input bias current changes polarity as the common-
mode voltage passes through the crossover region.
Match the effective impedance seen by each input to
reduce the offset error caused by input bias currents
flowing through external source impedances (Figures
1a and 1b). The combination of high source impedance
plus input capacitance (amplifier input capacitance
plus stray capacitance) creates a parasitic pole that
produces an underdamped signal response. Reducing
input capacitance or placing a small capacitor across
the feedback resistor improves response in this case.
______________________________________________________________Pin Description
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