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Texas Instruments LM301AH/NOPB
- Part No.:
- LM301AH/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- TO-99-8 Metal Can
- Datasheet:
-
LM301AH/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT TO99-8
- Quantity:
- Payment:
- Shipping:
Inventory:238
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Product details
Overview
LM301AH/NOPB from Texas Instruments is a general-purpose operational amplifier optimized for commercial-temperature applications (0°C to +70°C), featuring 3 mV maximum input offset voltage, 100 nA maximum input bias current, and 10 V/μs slew rate in summing configuration. It operates from ±15 V supplies, delivers ±13 V output swing into 2 kΩ, and supports external frequency compensation via a single 30 pF capacitor for stability tuning in precision analog signal conditioning circuits.
For engineers reviewing the LM301AH/NOPB datasheet, LM301AH/NOPB pinout, LM301AH/NOPB application, or LM301AH/NOPB equivalent, key selection considerations include its TO-99 metal-can package, temperature-limited specification range, input bias current performance at 70°C, and compatibility with feedforward or two-pole compensation topologies for high-speed rectifier or integrator designs.
Technical Context
The LM301AH/NOPB implements a classic bipolar-input op-amp architecture with internal input protection diodes and output short-circuit protection. Its open-loop gain exceeds 25 V/mV at ±15 V supply, and common-mode rejection ratio remains ≥70 dB across the full input voltage range up to ±12 V.
It requires external 30 pF compensation capacitance between pins 1 and 8 for unity-gain stability, and supports feedforward compensation (Figure 19) to achieve fast AC/DC conversion without filtering. Input stage design enables operation with input voltages exceeding the supply rails under certain conditions, and large-signal bandwidth reaches 15 kHz in standard compensated configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±5 V to ±15 V - Enables dual-rail operation in low-voltage industrial control and sensor interface systems. |
| Input Offset Voltage (Max) | 3.0 mV at 25°C - Sets baseline DC error budget for precision DC-coupled amplifiers and active filters. |
| Input Bias Current (Max) | 250 nA at 70°C - Determines leakage-induced error in high-impedance feedback networks and integrators. |
| Slew Rate | 10 V/μs in summing amplifier configuration - Supports fast transient response in pulse conditioning and waveform generation. |
| Large-Signal Voltage Gain | 25 V/mV minimum at ±15 V supply - Ensures stable closed-loop behavior with ≥40 dB loop gain margin at 10 kHz. |
| Output Voltage Swing | ±13 V into 2 kΩ load - Delivers rail-to-rail usable dynamic range for ±15 V systems without clipping distortion. |
| Common-Mode Rejection Ratio | 70 dB minimum - Maintains accuracy when amplifying small differential signals amid noisy power-supply or ground references. |
Pinout & Package
LM301AH/NOPB is housed in an 8-pin TO-99 metal-can package (package code LMC0008C), with hermetically sealed construction suitable for high-reliability analog signal paths. The package features a center tab connected to pin 4 (V−) and requires mechanical grounding for optimal EMI immunity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Compensation | Connects to 30 pF capacitor for dominant-pole compensation; critical for stability in unity-gain or high-frequency applications. |
| 2 | Inverting Input | Differential input node accepting feedback signals; input protection diodes limit voltage to ±0.7 V beyond rails. |
| 3 | Non-Inverting Input | Differential input node accepting reference or sensor signals; same protection and impedance as pin 2. |
| 4 | V− Supply | Negative supply terminal; also tied to metal can for shielding and thermal conduction in TO-99 package. |
| 5 | Offset Null | Adjusts input stage imbalance via external potentiometer; used to minimize DC drift in precision integrators. |
| 6 | Output | Class-A/B output stage capable of ±20 mA continuous drive; short-circuit protected but not latch-up immune. |
| 7 | V+ Supply | Positive supply terminal; decoupling capacitor required within 1 cm for high-frequency stability. |
| 8 | Compensation | Second terminal of compensation capacitor; forms RC network with pin 1 to set dominant pole frequency. |
Key Features
| Feature | Design Value |
|---|---|
| No internal compensation | Enables application-specific frequency response shaping using external 30 pF capacitor or feedforward networks. |
| Input overload protection | Internal clamping diodes prevent damage when inputs exceed supply rails by >±0.7 V. |
| Output short-circuit protection | Continuous safe operation into grounded loads without thermal shutdown or parameter shift. |
| Specified drift over temperature | Average offset drift ≤6 μV/°C ensures predictable calibration intervals in 0°C–70°C commercial environments. |
| Freedom from latch-up | Operates reliably even when common-mode input voltage exceeds supply rails - critical for comparator and level-shifter use. |
Applications
| Fast AC/DC Converter | Low-Drift Integrator |
|---|---|
Use Scenario: Full-wave rectification of audio or sensor signals without passive filtering, enabling direct digitization of envelope-detected waveforms. IC Role / Device Role / Timing Role: Precision op-amp configured in feedforward compensation topology to eliminate recovery delay and ripple artifacts. Use Value: Achieves sub-microsecond response time and <1% harmonic distortion at 10 kHz input, eliminating need for post-rectifier RC smoothing. |
Use Scenario: Long-interval timing and analog computation in process control systems requiring integration periods >10 seconds. IC Role / Device Role / Timing Role: Core integrator element with bias-current compensation network (R1/R2) to suppress drift-induced output ramp. Use Value: Limits integrator drift to <0.1 nA/°C over 0°C–70°C, enabling stable 100-second integration with <0.5% error accumulation. |
| High-Impedance Sample-and-Hold | Instrumentation Amplifier Front-End |
Use Scenario: Capturing microvolt-level biopotential signals (e.g., EEG, ECG) with minimal charge injection and hold-mode leakage. IC Role / Device Role / Timing Role: Buffer and hold amplifier with polycarbonate dielectric capacitor, leveraging low input bias current for extended hold time. Use Value: Achieves >10 s hold time with <1 mV droop per second at room temperature due to 250 nA max input bias current. |
Use Scenario: Amplifying low-level bridge transducer outputs in weigh scales and pressure sensors where CMRR and offset stability are critical. IC Role / Device Role / Timing Role: First-stage gain block in three-op-amp instrumentation topology (Figure 43), providing matched input impedance and gain-setting precision. Use Value: Contributes ≥70 dB CMRR to overall system, enabling accurate measurement of 10 μV signals on 5 V common-mode background. |
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 | Same TO-99 package and pinout; specified only over 0°C to +70°C but lacks "A" grade screening for tighter initial offset (3 mV vs. 7.5 mV typical). | Acceptable for non-critical DC gain stages where 7.5 mV offset is tolerable; not recommended for precision integrators or zero-drift designs. | Select LM301AH/NOPB when guaranteed 3 mV max offset and lower drift are required for production calibration stability. |
| LM741CH/NOPB | Internally compensated; fixed 1 MHz GBW; higher input bias current (800 nA); no offset null pin; wider supply range (±22 V). | Suitable for general-purpose amplification where ease of use outweighs speed and precision; incompatible with feedforward or custom compensation schemes. | Choose LM301AH/NOPB when external compensation, 10 V/μs slew rate, or offset trimming capability is essential. |
Compared with LM301H/NOPB, LM301AH/NOPB guarantees tighter offset and drift specs for calibrated systems; versus LM741CH/NOPB, it trades built-in simplicity for superior speed, lower input current, and design flexibility via external compensation - making it preferable for high-fidelity analog signal chains where layout and tuning resources are available.
Availability
LM301AH/NOPB is available at Aetrix Electronics and suitable for precision analog signal conditioning, industrial sensor interfaces, and legacy equipment repair requiring stable component supply with RoHS-compliant TO-99 packaging.
Supply support for LM301AH/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 specializing in analog, embedded processing, and digital signal technologies, with decades of heritage in precision op-amp design and manufacturing.
The LM301A series was developed as a cost-optimized, externally compensated successor to the LM709, targeting commercial-grade instrumentation, test equipment, and analog computing systems requiring reliable DC accuracy and flexible bandwidth control.
FAQ
What is the maximum operating temperature range for LM301AH/NOPB?
The LM301AH/NOPB is specified for operation from 0°C to +70°C ambient temperature. This commercial-grade rating distinguishes it from the LM101A (−55°C to +125°C) and LM201A (−25°C to +85°C) variants. Operation outside this range may result in degraded offset voltage, increased input bias current, or reduced open-loop gain - all parameters explicitly characterized only within the 0°C–70°C window per the SNOSBS0D datasheet.
Does LM301AH/NOPB require external compensation, and what capacitor value is needed?
Yes, LM301AH/NOPB requires external frequency compensation for stable operation. A 30 pF capacitor must be connected between pins 1 and 8 to achieve unity-gain stability. This value is validated for source resistances <10 kΩ and stray capacitances <5 pF; larger capacitors (e.g., 100 pF) are recommended when driving capacitive loads >100 pF or using high-value feedback resistors to prevent peaking or oscillation.
Can LM301AH/NOPB be used as a comparator?
Yes, LM301AH/NOPB can function as a comparator in non-saturating configurations, such as driving RTL or TTL logic (see Figure 45 and Figure 48). However, it lacks dedicated comparator features like internal hysteresis or rail-to-rail output swing. When used in open-loop mode, output recovery time and propagation delay are not characterized - so for timing-critical or high-speed comparisons, purpose-built comparators (e.g., LM311) are preferred over LM301AH/NOPB.
What is the purpose of the offset null pins (5 and 8) on LM301AH/NOPB?
Pins 5 and 8 on LM301AH/NOPB form the offset null connection for the internal input stage. A 10 kΩ potentiometer is wired with its wiper to pin 5 and both ends to pins 4 (V−) and 7 (V+), allowing manual adjustment of input stage imbalance to reduce DC output error. This feature is essential in precision integrators and zero-drift amplifiers where initial offset must be trimmed below 1 mV before system calibration.
Is LM301AH/NOPB RoHS compliant, and what does the /NOPB suffix indicate?
Yes, LM301AH/NOPB is RoHS compliant, as confirmed in TI's PACKAGE OPTION ADDENDUM (15-Jul-2026). The /NOPB suffix explicitly denotes lead-free finish - meaning the TO-99 package uses matte tin plating instead of traditional lead-based solderable coating. This satisfies EU RoHS Directive 2011/65/EU and supports environmentally compliant manufacturing without compromising solderability or thermal cycling reliability.
LM301AH/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- TO-99-8 Metal Can
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- TO-99-8
LM301AH/NOPB FAQ
1.How can I place an order for LM301AH/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM301AH/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 LM301AH/NOPB reliable?
The price and inventory of LM301AH/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM301AH/NOPB is usually 5 days.
3.What payment methods are accepted for LM301AH/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM301AH/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM301AH/NOPB?
LM301AH/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM301AH/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 LM301AH/NOPB?
For technical support, including LM301AH/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM301AH/NOPB requirements.
6.How does Aetrix verify that LM301AH/NOPB is sourced from the original manufacturer or authorized distributors?
All LM301AH/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 LM301AH/NOPB meets industry standards.
7.What is the process for return or replacement of LM301AH/NOPB?
All LM301AH/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM301AH/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 LM301AH/NOPB part is unused and in its original packaging.
Return procedure for LM301AH/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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