The LM741CN parts manufactured by TI are available for purchase at Autoecuchips.com. Here you can find various types and values of electronic parts from the world's leading manufacturers. The LM741CN components of Autoecuchips.com are carefully chosen, undergo stringent quality control, and are successfully meet all required standards.
The production status marked on Autoecuchips.com is for reference only. If you didn't find what you were looking for, you can get more valuable information by emails, such as the LM741CN Inventory quantity, preferential price, datasheet, and manufacturer. We are always happy to hear from you, so feel free to contact us.
The following provides detailed information regarding the LM741CN chip:
Technical Specifications
- Number of Amplifiers: 1
- Gain Bandwidth Product (GBW): 1 MHz (Typical)
- Slew Rate: 0.5 V/µs (Typical)
- Supply Voltage Range:
- Dual Supply: ±10 V to ±22 V (Typical: ±15 V)
- Single Supply: 10 V to 36 V
- Input Offset Voltage (VOS): 2 mV (Typical); 6 mV (Max) at 25°C
- Input Bias Current (IB): 80 nA (Typical); 500 nA (Max) at 25°C
- Input Offset Current (IOS): 20 nA (Typical); 200 nA (Max) at 25°C
- Open-Loop Voltage Gain (AVO): 200 V/mV (Typical); 20 V/mV (Min)
- Output Voltage Swing: ±10 V to ±12 V (RL = 2 kΩ, VS = ±15 V)
- Common-Mode Rejection Ratio (CMRR): 70 dB (Typical)
- Power Supply Rejection Ratio (PSRR): 76 dB (Typical)
- Quiescent Supply Current (IQ): 1.7 mA (Typical); 2.8 mA (Max)
- Input Common-Mode Voltage Range: ±12 V (VS = ±15 V)
- Operating Temperature Range: 0°C to +70°C (LM741CN Commercial Grade)
- Storage Temperature Range: -65°C to +150°C
- Package Thermal Resistance:
- θJA (Junction-to-Ambient): Approx. 100°C/W (PDIP-8, Standard Conditions)
- θJC (Junction-to-Case): Approx. 40°C/W
Pin Definitions (PDIP-8, Top View)
Pin | Name | Type | Function
1 | Offset Null | Input | Offset voltage nulling terminal; connect a 10–20 kΩ potentiometer between this pin and Pin 5. kΩ potentiometer used to eliminate input offset voltage
2 Inverting Input (−) Input Inverting input terminal; if a signal is applied here, the output will be inverted relative to the input.
3 Non-inverting Input (+) Input Non-inverting input terminal; if a signal is applied here, the output will be in phase with the input.
4 V− Power Negative power supply voltage (typically connected to −15 V in dual-supply configurations; connected to ground in single-supply configurations).
5 Offset Null Input Offset voltage nulling terminal; used in conjunction with Pin 1.
6 Output Output Amplifier output terminal; capable of driving loads of ≥2 kΩ.
7 V+ Power Positive power supply voltage (typically connected to +15 V in dual-supply configurations; connected to VCC in single-supply configurations).
8 NC — No Connection (NC); internally unconnected; typically left floating or used as a PCB routing via.
Internal Functional Block Diagram
```
V+ (7)
│
┌────┴────┐
│ Biasing Circuit │
│ Current Source │
└────┬────┘
│
┌────┴────┐
│ Differential Input Stage │←── Pin 2 (−), Pin 3 (+)
│ (NPN Pair) │
└────┬────┘
│
┌────┴────┐
│ Intermediate Gain Stage │←── Main amplification, high gain
│ (Darlington) │
└────┬────┘
│
┌────┴────┐
│ Output Stage │→── Pin 6 (Output)
│ (Complementary Emitter Follower) │←── Overload Protection
└────┬────┘
│
V− (4)
Pins 1, 5 ──→ Connect potentiometer to the intermediate gain stage for nulling.
```
Typical Application Circuits
1. Inverting Amplifier
```
Rf (10 kΩ)
┌────/\/\/────┐
│ │
Vin │ ┌──────┤
──/\/\/─┤ │ 2 │ 6
R1 │ │− LM741├──→ Vout =
(1 kΩ) └──────┤ │ −(Rf/R1) × Vin = −10 × Vin
│ CN │
+│ 3 │
┌────┤+ │
│ └──────┘
GND │ 4 7
└┬──┬┘
V− V+
│ │
GND +15V
│
−15V
```
- Gain: AV = −Rf/R1 (The negative sign indicates inversion)
- Input Impedance: ≈ R1 (Relatively low; requires the signal source to have sufficient driving capability)
2. Non-inverting Amplifier
```
Rf (9 kΩ)
┌────/\/\/────┐
│ │
│ ┌──────┤
│ │ │
+│ 3 │ 2 │ 6
Vin ────────┤+ LM741├──/\/\/─┤−├──→ Vout = (1 + Rf/R1) × Vin = 10 × Vin
│ CN │ R1 │
│ │(1 kΩ) │
└──────┘ │
│ 4 7 │
└┬──┬┘ GND
V− V+
│ │
GND +15V
│
−15V
```
- Gain: AV = 1 + Rf/R1
- Input Impedance: Extremely high (The op-amp's input impedance; ideally infinite)
3. Voltage Follower / Buffer
```
+│ 3 │ 2
Vin ────────┤+ LM741├────┤−├──→ Vout = Vin
│ CN │ │
│ │ │
└──────┘ │
│ 6 7 │
└──┬┘ GND
V+
│
+15V
```
- Gain: AV = 1 (Unity gain)
- Purpose: Impedance transformation; features high input impedance and low output impedance.
4. Integrator
```
Cf (0.1 µF)
┌────┤├────┐
│ │
Vin │ ┌──────┤
──/\/\/─┤ │ │
R1 │ │ 2 │ 6
(10 kΩ) └──────┤− LM741├──→ Vout = −1/(R1×Cf) ∫Vin dt
│ CN │
+│ 3 │
┌────┤+ │
│ └──────┘
GND │ 4 7
└┬──┬┘
V− V+
│ │
GND +15V
│
−15V
```
- Output: Vout(t) = −1/(R1Cf) ∫Vin(t)dt + Vinitial
- Note: In a practical circuit, a large resistor Rf must be connected in parallel with Cf to prevent DC saturation.
5. Active Low-Pass Filter
```
Rf (10 kΩ) Cf (1 nF)
┌────/\/\/────┤├──┐
│ │
Vin │ ┌───────────┤
──/\/\/─┤ │ │
R1 │ │ 2 │ 6
(10 kΩ) └──────┤− LM741 ├──→ Vout
│ CN │
+│ 3 │
┌────┤+ │
│ └───────────┘
GND │ 4 7
└┬──┬┘
V− V+
│ │
GND +15V
│
−15V
```
- Cutoff Frequency: fc = 1/(2πRfCf)
Key Design Formulas
Parameter Formula
Inverting Gain AV = −Rf/R1
Non-inverting Gain AV = 1 + Rf/R1
Bandwidth (Limited by Gain-Bandwidth Product) BW = GBW / \|AV\| = 1 MHz / \|AV\|
Maximum Frequency (Limited by Slew Rate) fmax = SR / (2π × Vout(peak))
Offset Nulling Potentiometer Rpot = 10 – 20 kΩ; connected between pins 1 and 5, with the wiper connected to the negative power supply via a 1–10 kΩ resistor.
Alternative Models and Competitors
Model | Manufacturer | Key Differences
LM741 | TI / Multiple | Standard version; temperature range: −55°C to +125°C (Military Grade)
LM741A | TI | Improved version; lower offset voltage, higher precision
LM741C | TI / Multiple | Commercial Grade (0°C to +70°C); similar to the LM741CN
LM741CN/NOPB | TI | Lead-free / RoHS-compliant version
LM741CP | TI / Rochester | PDIP-8 package; RoHS-compliant
LM741CM | TI | SOIC-8 surface-mount version
UA741 | TI / Multiple | Functionally equivalent; alternative manufacturer naming
UA741CP | TI | PDIP-8 package; RoHS-compliant
KA741 | Samsung / Fairchild | Functionally equivalent; South Korean-manufactured version
MC1741CP1 | ON Semi | Functionally equivalent; ON Semiconductor version
TL081 | TI | JFET input; higher input impedance, lower bias current
TL071 | TI | JFET input; low-noise version
OP07 | Analog Devices | Precision Op-Amp; ultra-low offset voltage (75 µV), lower noise
OP27 | Analog Devices | Precision High-Speed Op-Amp; higher GBW (8 MHz)
NE5532 | TI / Multiple | Dual Op-Amp; higher SR (9 V/µs), specialized for audio applications
LM358 | TI / Multiple | Dual Op-Amp; single-supply operation (3 V–32 V), lower power consumption
LM324 | TI / Multiple | Quad Op-Amp; single-supply operation, low-cost general-purpose
Important Considerations
- Compatibility: The LM741CN is a general-purpose bipolar operational amplifier. It features moderate input impedance (approx. 2 MΩ) and relatively high bias current (80–500 nA); therefore, it is not suitable for direct driving by high-impedance sources. For high-impedance applications, it is recommended to select a JFET-input type (such as the TL081) or a CMOS-input type (such as the LMC6001). - Installation Instructions:
- PDIP-8 Package: Pin spacing is 2.54 mm (100 mil); designed for standard through-hole soldering.
- Soldering Temperature: For manual soldering irons, ≤ 350°C for ≤ 5 seconds; for wave soldering, preheat at 100°C, peak at 260°C, for ≤ 10 seconds.
- Power Supply Decoupling: Connect a 0.1 µF ceramic capacitor from each of the V+ and V− pins to ground, placing them as close to the chip as possible.
- Offset Nulling: For precision DC amplification, connect a 10–20 kΩ multi-turn potentiometer between pins 1 and 5. Connect the wiper of the potentiometer to the negative power supply via a 1–10 kΩ resistor. To null the offset, short-circuit the input and adjust the potentiometer until the output reads 0 V.
- Frequency Compensation: The LM741 features an internally integrated 30 pF compensation capacitor, so external compensation is typically not required. However, in high-gain configurations or when driving capacitive loads, a small capacitor (10–100 pF) may be connected in parallel with the feedback resistor to suppress oscillation.
- Output Protection: Short-circuiting the output to ground or to the power supply rails may damage the device; for applications involving sustained overload conditions, a current-limiting resistor is recommended for protection.
- Technical Support: For further technical assistance, please refer to the official application notes provided by TI, ON Semiconductor, or ST Microelectronics, or contact an authorized distributor.
Summary
The LM741CN is a classic, general-purpose bipolar operational amplifier manufactured by various vendors, including Texas Instruments, ON Semiconductor, and ST Microelectronics. Housed in a PDIP-8 package, it features a 1 MHz gain-bandwidth product, a 0.5 V/µs slew rate, and a wide supply voltage range of ±10 V to ±22 V. Its built-in features—such as input and output overload protection, latch-up immunity when inputs exceed the common-mode range, and oscillation-free operation—combined with a simple offset nulling capability, make it an exceptionally practical and reliable choice for fundamental analog circuits, including analog signal amplification, active filtering, integration and differentiation, comparators, and buffers. As one of the most widely used operational amplifiers since its introduction in 1968, the LM741CN remains the preferred benchmark device for electronics engineering education, prototyping, and industrial maintenance to this day—hailed as the "textbook of operational amplifiers."
Welcome to our shop!
Dear friends, if you are very interested and want to order a large number, you can contact us through Whatsapp, Wechat, email or Skype, and we will reply to you within 24 hours.
Product Description:
1.The picture only supplies the reference It may not be the exact one as in our stock because of difr NO.
2.We will ship the items within 3 working days after the payment is reached.
3.When the parts arrive at your local customs, if the parts are charged with customs duties, we are not responsible for any customs duties or import taxes.
REFUNDS & RETURN:
We offer a warranty on all items that we sold. Item will be tested before ship, it will be in good condition, if there are some problems with the item, feel free to contact us.
You must contact us before returning any product . Return must be in new condition (Buyer should return all original and undamaged items under re-saleable condition).
Return the goods and the buyer is responsible for all expenses!!
If you are satisfied with our products, please give positive feedback. Thank you for your help. If you are not satisfied, please let us know. Your constructive suggestions will become the driving force for our modification and improvement. Thanks for your understanding.
