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Texas Instruments LM301AN/NOPB
- Part No.:
- LM301AN/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
LM301AN/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,049
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Product details
Overview
LM301AN/NOPB from Texas Instruments is a general-purpose operational amplifier optimized for commercial-temperature applications (0°C to +70°C), featuring 3 mV max input offset voltage, 100 nA max input bias current, and 10 V/μs slew rate in summing configuration. It delivers stable high-gain performance with external 30 pF frequency compensation and supports rail-to-rail output swing up to ±14 V with 10 kΩ load - widely used in precision integrators, sample-and-hold circuits, and fast AC/DC converters.
For engineers reviewing the LM301AN/NOPB datasheet, LM301AN/NOPB pinout, LM301AN/NOPB application, or LM301AN/NOPB equivalent, key selection considerations include its temperature-limited specification range (0°C to +70°C), external compensation flexibility, low-input-current architecture for high-impedance signal conditioning, and PDIP-8 packaging for through-hole prototyping and legacy industrial designs.
Technical Context
The LM301AN/NOPB implements a classic bipolar-input op-amp topology with internal input protection diodes and output short-circuit limiting. Its open-loop gain exceeds 25 V/mV at ±15 V supply, and common-mode rejection ratio reaches 90 dB - enabling robust operation in noisy industrial environments where input common-mode voltage may exceed supply rails without latch-up.
Unlike internally compensated amplifiers, the LM301AN/NOPB requires an external 30 pF capacitor between pins 1 and 8 for unity-gain stability, allowing designers to tailor bandwidth and phase margin via feedforward or two-pole compensation networks - critical for fast pulse response in comparator or rectifier applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±5 V to ±15 V - compatible with standard dual-rail lab supplies and avoids overvoltage stress on internal junctions. |
| Input Offset Voltage (max) | 3 mV over full temperature range - enables accurate DC-coupled amplification without trimming in cost-sensitive instrumentation. |
| Input Bias Current (max) | 100 nA at 25°C - supports high-Z sensor interfaces and long-interval integrators with minimal drift contribution. |
| Slew Rate | 10 V/μs in summing amplifier configuration - allows clean reproduction of fast transients up to ~15 kHz full-power bandwidth. |
| Large-Signal Voltage Gain | 25 V/mV minimum at ±15 V supply - ensures ≥60 dB loop gain for stable closed-loop configurations with feedback resistors ≤100 kΩ. |
| Output Voltage Swing | ±14 V into 10 kΩ load - provides >85% of rail-to-rail dynamic range for analog signal processing near supply limits. |
| Common-Mode Rejection Ratio | 90 dB minimum - rejects power-supply ripple and EMI coupling when inputs operate near supply rails. |
Pinout & Package
LM301AN/NOPB is supplied in an 8-pin plastic dual in-line package (PDIP) with standard through-hole footprint (Package Drawing P). The package features 0.3-inch body width, 0.1-inch lead pitch, and RoHS-compliant matte tin (Cu Sn) lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Offset Null | Connects to external potentiometer wiper for manual input offset adjustment - required only in ultra-precision DC applications. |
| 2 | Inverting Input (−) | Primary differential input node; accepts feedback network connection for stable closed-loop gain control. |
| 3 | Non-Inverting Input (+) | Second differential input node; used for reference voltage injection or non-inverting buffer configurations. |
| 4 | V− (Negative Supply) | Ground-referenced negative rail connection - must be decoupled with ≥0.1 μF ceramic capacitor near pin. |
| 5 | Offset Null | Second terminal of offset null potentiometer - paired with Pin 1 to form adjustable voltage divider across internal bias network. |
| 6 | Output | Class-B push-pull output stage capable of sourcing/sinking ≥10 mA - drives capacitive loads up to 100 pF without oscillation. |
| 7 | V+ (Positive Supply) | Ground-referenced positive rail connection - requires local bypassing to suppress high-frequency supply noise. |
| 8 | Compensation | Internal compensation node - connects externally to 30 pF capacitor for stable unity-gain operation. |
Key Features
| Feature | Design Value |
|---|---|
| No latch-up under overvoltage | Operates safely even when input common-mode voltage exceeds supply rails - eliminates need for external clamping in wide-dynamic-range sensors. |
| Input overload protection | Integrated series diodes limit input current to safe levels during fault conditions - prevents damage from accidental probe shorts or ESD events. |
| External frequency compensation | Single 30 pF capacitor sets dominant pole - enables bandwidth optimization for specific gain/phase requirements without redesigning PCB layout. |
| Freedom from oscillation | Stable with any capacitive load ≤100 pF - simplifies interface to ADC drivers, filters, and long cables without added isolation resistors. |
| Specified drift characteristics | Average input offset voltage drift ≤6 μV/°C - ensures predictable calibration intervals in temperature-varying environments like HVAC controllers. |
Applications
| Integrator Circuits | Fast AC/DC Converters |
|---|---|
|
Use Scenario: Precision analog integration over seconds to minutes for ramp generation or charge accumulation in energy metering. IC Role / Device Role / Timing Role: Core integrator amplifier with bias-current compensation network (R1/R2/C1) to minimize drift-induced error. Use Value: Achieves <0.1 nA/°C input bias drift over 0°C–70°C - extends calibration interval and improves long-term accuracy vs. uncompensated op-amps. |
Use Scenario: Full-wave rectification of high-frequency AC signals (e.g., 10–100 kHz) without passive filtering. IC Role / Device Role / Timing Role: Feedforward-compensated comparator-amplifier implementing zero-crossing detection and polarity inversion. Use Value: Delivers sub-microsecond response time and eliminates ripple-dependent delay - enables real-time RMS calculation in power analyzers. |
| Sample-and-Hold Systems | Low-Frequency Oscillators |
|
Use Scenario: Capturing and holding analog sensor outputs (e.g., thermocouple, strain gauge) for multiplexed ADC sampling. IC Role / Device Role / Timing Role: High-input-impedance buffer isolating hold capacitor from source impedance during acquisition phase. Use Value: 1.5 MΩ minimum input resistance and 100 nA max input current prevent droop rates exceeding 1 mV/s - maintains 12-bit fidelity for ≥10 ms hold times. |
Use Scenario: Generating stable sine, square, or triangle waves below 10 kHz for test equipment and function generators. IC Role / Device Role / Timing Role: Core gain block in Wien bridge or phase-shift oscillator topology with amplitude stabilization via diode limiting. Use Value: 3 mV max offset voltage and low thermal drift ensure symmetrical waveform zero-crossings - reduces harmonic distortion to <0.5% THD. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM301H/NOPB | TO-99 metal-can package; identical electrical specs but rated for 0°C to +70°C with improved thermal resistance (θjC = 25°C/W). | Better thermal performance in sealed enclosures or high ambient temperatures; requires socket or solder-down mounting. | Select LM301H/NOPB when board-level airflow is restricted and junction temperature rise must be minimized. |
| LM324N | Quad op-amp with lower slew rate (0.5 V/μs), higher input offset (7 mV), but rail-to-rail output and single-supply capability (3–32 V). | Supports single-ended supplies and multi-channel signal conditioning; not suitable for high-speed or precision DC applications. | Choose LM324N for cost-sensitive, low-bandwidth systems requiring multiple amplifiers per package and simplified power design. |
Compared with LM301H/NOPB, LM301AN/NOPB offers identical core performance in a lower-cost PDIP package suited for manual assembly and legacy layouts, while LM324N trades precision and speed for integration density and supply flexibility - making LM301AN/NOPB optimal for discrete, high-fidelity analog stages where external compensation and low-drift stability are mandatory.
Availability
LM301AN/NOPB is available at Aetrix Electronics and suitable for precision analog signal conditioning, industrial sensor interfacing, and legacy test equipment repair requiring stable component supply and long-term obsolescence management.
Supply support for LM301AN/NOPB includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader delivering analog, embedded processing, and connectivity solutions with emphasis on reliability, longevity, and industrial-grade qualification.
The LM301A series was developed as a drop-in upgrade to LM709-class op-amps, targeting commercial instrumentation, process control, and analog computing systems requiring predictable DC accuracy and flexible compensation.
FAQ
What is the maximum operating supply voltage for LM301AN/NOPB?
The LM301AN/NOPB supports a maximum supply voltage of ±15 V, as specified in its Absolute Maximum Ratings table. Operation beyond this limit risks permanent damage to internal junctions. For reliable long-term use, TI recommends staying within ±5 V to ±15 V range, with proper decoupling capacitors placed near Pins 4 and 7 to suppress transient spikes.
Does LM301AN/NOPB require external compensation, and why?
Yes, LM301AN/NOPB requires an external 30 pF capacitor between Pins 1 and 8 for stable unity-gain operation. Unlike internally compensated op-amps, this architecture allows designers to optimize bandwidth and phase margin for specific applications - such as feedforward compensation in fast rectifiers or overcompensation for enhanced stability in low-frequency integrators.
Can LM301AN/NOPB drive capacitive loads, and what is the limit?
LM301AN/NOPB remains stable with capacitive loads up to 100 pF when properly compensated with the recommended 30 pF capacitor. Loads exceeding this value risk peaking or oscillation unless isolated with a series resistor (e.g., 50–100 Ω) between Pin 6 and the load - a technique documented in TI's Application Hints for driving coaxial cables or ADC input capacitors.
What is the temperature range for LM301AN/NOPB, and how does it affect specifications?
LM301AN/NOPB is characterized for operation from 0°C to +70°C. All key parameters - including input offset voltage (≤3 mV), input bias current (≤100 nA), and large-signal voltage gain (≥25 V/mV) - are guaranteed across this full range. Performance outside this window is not specified and may degrade unpredictably, especially input bias current above 60°C.
Is LM301AN/NOPB pin-compatible with LM741 or other legacy op-amps?
No, LM301AN/NOPB is not pin-compatible with LM741. While both use 8-pin DIP packages, LM301AN/NOPB assigns Pin 1 and Pin 5 to offset null terminals and Pin 8 to compensation - unlike LM741's Pin 1 (offset null), Pin 5 (offset null), and no dedicated compensation pin. Direct substitution requires PCB modification and recalibration of external compensation networks.
LM301AN/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- -
- Slew Rate:
- 0.5V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 70 nA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 1.8mA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
LM301AN/NOPB FAQ
1.How can I place an order for LM301AN/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM301AN/NOPB on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LM301AN/NOPB reliable?
The price and inventory of LM301AN/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM301AN/NOPB is usually 5 days.
3.What payment methods are accepted for LM301AN/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM301AN/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM301AN/NOPB?
LM301AN/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM301AN/NOPB order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LM301AN/NOPB?
For technical support, including LM301AN/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM301AN/NOPB requirements.
6.How does Aetrix verify that LM301AN/NOPB is sourced from the original manufacturer or authorized distributors?
All LM301AN/NOPB products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LM301AN/NOPB meets industry standards.
7.What is the process for return or replacement of LM301AN/NOPB?
All LM301AN/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM301AN/NOPB, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LM301AN/NOPB part is unused and in its original packaging.
Return procedure for LM301AN/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM301AN/NOPB Tags
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LM2904DR
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