•No Latch-Up When the Common-Mode Range is
Exceeded
2Applications
•Comparators
•Multivibrators
•DC Amplifiers
•Summing Amplifiers
•Integrator or Differentiators
•Active Filters
The LM741 series are general-purpose operational
amplifiers which feature improved performance over
industry standards like the LM709. They are direct,
plug-in replacements for the 709C, LM201, MC1439,
and 748 in most applications.
The amplifiers offer many features which make their
application nearly foolproof: overload protection on
the input and output, no latch-up when the commonmode range is exceeded, as well as freedom from
oscillations.
The LM741C is identical to the LM741 and LM741A
except that the LM741C has their performance
ensured over a 0°C to +70°C temperature range,
instead of −55°C to +125°C.
LM741
PART NUMBERPACKAGEBODY SIZE (NOM)
LM741CDIP (8)10.16 mm × 6.502 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Typical Application
Device Information
TO-99 (8)9.08 mm × 9.08 mm
PDIP (8)9.81 mm × 6.35 mm
(1)
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision C (October 2004) to Revision DPage
•Added Applications section, Pin Configuration and Functions section, ESD Ratings table, Feature Description
section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations
section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable
Information section ................................................................................................................................................................ 1
•Removed NAD 10-Pin CLGA pinout ..................................................................................................................................... 3
•Removed obselete M (S0-8) package from the data sheet ................................................................................................... 4
•Added recommended operating supply voltage spec ............................................................................................................ 4
•Added recommended operating temperature spec................................................................................................................ 4
Changes from Revision C (March 2013) to Revision DPage
•Added Applications section, Pin Configuration and Functions section, ESD Ratings table, Feature Description
section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations
section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable
Information section ................................................................................................................................................................ 1
•Removed NAD 10-Pin CLGA pinout ..................................................................................................................................... 3
•Removed obselete M (S0-8) package from the data sheet ................................................................................................... 4
•Added recommended operating supply voltage spec ............................................................................................................ 4
•Added recommended operating temperature spec................................................................................................................ 4
over operating free-air temperature range (unless otherwise noted)
Supply voltageV
Power dissipation
Differential input voltage±30V
Input voltage
Output short circuit durationContinuous
Operating temperature°C
Junction temperature°C
Soldering information
Storage temperature, T
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended
Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) For military specifications see RETS741X for LM741 and RETS741AX for LM741A.
(3) If Military/Aerospace specified devices are required, please contact the TI Sales Office/Distributors for availability and specifications.
(4) For operation at elevated temperatures, these devices must be derated based on thermal resistance, and Tjmax. (listed under “Absolute
Maximum Ratings”). Tj= TA+ (θjAPD).
(5) For supply voltages less than ±15 V, the absolute maximum input voltage is equal to the supply voltage.
1.5μA
Input resistanceTA= 25°C, VS= ±20 V0.32MΩ
Input voltage rangeT
Large signal voltage gainV/mV
Output voltage swingVS= ±15 VV
≤ TA≤ T
AMIN
AMAX
VS= ±15 V, VO= ±10 V, RL≥ 2
kΩ
±12±13V
TA= 25°C50200
T
AMIN
≤ TA≤ T
AMAX
25
RL≥ 10 kΩ±12±14
RL≥ 2 kΩ±10±13
Output short circuit currentTA= 25°C25mA
Common-mode rejection ratio RS≤ 10 Ω, VCM= ±12 V, T
Supply voltage rejection ratioVS= ±20 V to VS= ±5 V, RS≤ 10 Ω, T
Output short circuit currentTA= 25°C25mA
Common-mode rejection ratioRS≤ 10 kΩ, VCM= ±12 V, T
Supply voltage rejection ratioVS= ±20 V to VS= ±5 V, RS≤ 10 Ω, T
The LM74 devices are general-purpose operational amplifiers which feature improved performance over industry
standards like the LM709. It is intended for a wide range of analog applications. The high gain and wide range of
operating voltage provide superior performance in integrator, summing amplifier, and general feedback
applications. The LM741 can operate with a single or dual power supply voltage. The LM741 devices are direct,
plug-in replacements for the 709C, LM201, MC1439, and 748 in most applications.
7.2 Functional Block Diagram
7.3 Feature Description
7.3.1 Overload Protection
The LM741 features overload protection circuitry on the input and output. This prevents possible circuit damage
to the device.
7.3.2 Latch-up Prevention
The LM741 is designed so that there is no latch-up occurrence when the common-mode range is exceeded. This
allows the device to function properly without having to power cycle the device.
7.3.3 Pin-to-Pin Capability
The LM741 is pin-to-pin direct replacements for the LM709C, LM201, MC1439, and LM748 in most applications.
Direct replacement capabilities allows flexibility in design for replacing obsolete parts.
The LM741 can be operated in an open-loop configuration. The magnitude of the open-loop gain is typically large
thus for a small difference between the noninverting and inverting input terminals, the amplifier output will be
driven near the supply voltage. Without negative feedback, the LM741 can act as a comparator. If the inverting
input is held at 0 V, and the input voltage applied to the noninverting input is positive, the output will be positive.
If the input voltage applied to the noninverting input is negative, the output will be negative.
7.4.2 Closed-Loop Amplifier
In a closed-loop configuration, negative feedback is used by applying a portion of the output voltage to the
inverting input. Unlike the open-loop configuration, closed loop feedback reduces the gain of the circuit. The
overall gain and response of the circuit is determined by the feedback network rather than the operational
amplifier characteristics. The response of the operational amplifier circuit is characterized by the transfer function.
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TI’s customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test their design implementation to confirm system functionality.
8.1 Application Information
The LM741 is a general-purpose amplifier than can be used in a variety of applications and configurations. One
common configuration is in a noninverting amplifier configuration. In this configuration, the output signal is in
phase with the input (not inverted as in the inverting amplifier configuration), the input impedance of the amplifier
is high, and the output impedance is low. The characteristics of the input and output impedance is beneficial for
applications that require isolation between the input and output. No significant loading will occur from the
previous stage before the amplifier. The gain of the system is set accordingly so the output signal is a factor
larger than the input signal.
8.2 Typical Application
8.2.1 Design Requirements
As shown in Figure 1, the signal is applied to the noninverting input of the LM741. The gain of the system is
determined by the feedback resistor and input resistor connected to the inverting input. The gain can be
calculated by Equation 1:
The gain is set to 2 for this application. R1 and R2 are 4.7-k resistors with 5% tolerance.
8.2.2 Detailed Design Procedure
The LM741 can be operated in either single supply or dual supply. This application is configured for dual supply
with the supply rails at ±15 V. The input signal is connected to a function generator. A 1-Vpp, 10-kHz sine wave
was used as the signal input. 5% tolerance resistors were used, but if the application requires an accurate gain
response, use 1% tolerance resistors.
The waveforms in Figure 2 show the input and output signals of the LM741 non-inverting amplifier circuit. The
blue waveform (top) shows the input signal, while the red waveform (bottom) shows the output signal. The input
signal is 1.06 Vpp and the output signal is 1.94 Vpp. With the 4.7-kΩ resistors, the theoretical gain of the system
is 2. Due to the 5% tolerance, the gain of the system including the tolerance is 1.992. The gain of the system
when measured from the mean amplitude values on the oscilloscope was 1.83.
Figure 2. Waveforms for LM741 Noninverting Amplifier Circuit
9Power Supply Recommendations
For proper operation, the power supplies must be properly decoupled. For decoupling the supply lines, a 0.1-µF
capacitor is recommended and should be placed as close as possible to the LM741 power supply pins.
As with most amplifiers, take care with lead dress, component placement, and supply decoupling in order to
ensure stability. For example, resistors from the output to an input should be placed with the body close to the
input to minimize pick-up and maximize the frequency of the feedback pole by minimizing the capacitance from
the input to ground. As shown in Figure 3, the feedback resistors and the decoupling capacitors are located close
to the device to ensure maximum stability and noise performance of the system.
The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective
contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of
Use.TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration
among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help
solve problems with fellow engineers.
Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and
contact information for technical support.
11.2 Trademarks
E2E is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
11.3 Electrostatic Discharge Caution
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
11.4 Glossary
SLYZ022 — TI Glossary.
This glossary lists and explains terms, acronyms, and definitions.
12Mechanical, Packaging, and Orderable Information
The following pages include mechanical, packaging, and orderable information. This information is the most
current data available for the designated devices. This data is subject to change without notice and revision of
this document. For browser-based versions of this data sheet, refer to the left-hand navigation.
LM741CHACTIVETO-99LMC8500TBDCall TICall TI0 to 70( LM741CH ~
LM741CH/NOPBACTIVETO-99LMC8500Green (RoHS
LM741CN/NOPBACTIVEPDIPP840Green (RoHS
LM741HACTIVETO-99LMC8500TBDCall TICall TI-55 to 125( LM741H ~ LM741H)
LM741H/NOPBACTIVETO-99LMC8500Green (RoHS
LM741JACTIVECDIPNAB840TBDCall TICall TI-55 to 125LM741J
U5B7741312ACTIVETO-99LMC8500TBDCall TICall TI-55 to 125( LM741H ~ LM741H)
U5B7741393ACTIVETO-99LMC8500TBDCall TICall TI0 to 70( LM741CH ~
U9T7741393OBSOLETEPDIPP8TBDCall TICall TI0 to 70LM
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
Package Type Package
(1)
Drawing
Pins Package
Qty
Eco Plan
(2)
& no Sb/Br)
& no Sb/Br)
& no Sb/Br)
Lead/Ball Finish
(6)
MSL Peak Temp
(3)
Op Temp (°C)Device Marking
LM741CH)
Call TILevel-1-NA-UNLIM0 to 70( LM741CH ~
LM741CH)
CU SNLevel-1-NA-UNLIM0 to 70LM
741CN
Call TILevel-1-NA-UNLIM-55 to 125( LM741H ~ LM741H)
LM741CH)
741CN
(4/5)
(2)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
(3)
MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
Samples
Addendum-Page 1
Page 14
PACKAGE OPTION ADDENDUM
www.ti.com
15-Apr-2015
(4)
There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
(5)
Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation
of the previous line and the two combined represent the entire Device Marking for that device.
(6)
Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish
value exceeds the maximum column width.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
Addendum-Page 2
Page 15
NAB0008A
MECHANICAL DATA
www.ti.com
J08A (Rev M)
Page 16
Page 17
Page 18
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