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Texas Instruments LM1458N/NOPB
- Part No.:
- LM1458N/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
LM1458N/NOPB.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,733
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Product details
Overview
LM1458N/NOPB from Texas Instruments is a dual general-purpose operational amplifier in an 8-lead PDIP package, rated for 0°C to +70°C operation, with ±18V max supply voltage, 400 mW power dissipation, and guaranteed input offset voltage ≤6.0 mV at 25°C - used in analog signal conditioning, sensor interface, and audio preamplifier circuits.
For engineers reviewing the LM1458N/NOPB datasheet, LM1458N/NOPB pinout, LM1458N/NOPB application, or LM1458N/NOPB equivalent, this page delivers verified electrical specs, thermal limits, package dimensions, real-world use cases, and two validated alternative parts with documented functional and temperature-range differences.
Technical Context
The LM1458N/NOPB integrates two independent op-amps sharing only bias circuitry and common V+ and V− supply pins. It requires no external frequency compensation and features built-in short-circuit protection with continuous output current limiting.
Its input stage supports wide common-mode range (±12 V at ±15 V supplies) and differential input voltage up to ±30 V, while avoiding latch-up even when common-mode exceeds rails - enabling robust operation in noisy industrial environments and legacy analog systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | ±18 V maximum - defines absolute rail limit before damage; compatible with standard ±15 V analog supply rails. |
| Operating Temperature | 0°C to +70°C - commercial-grade rating; not suitable for automotive or extended industrial ambient conditions. |
| Input Offset Voltage | ≤6.0 mV at 25°C - sets DC error floor in precision gain stages; impacts accuracy in low-level sensor amplification. |
| Large-Signal Voltage Gain | ≥25 V/mV at ±15 V supply - ensures stable closed-loop performance for gains up to ~1000 without instability. |
| Output Swing | ±12 V into 10 kΩ load - delivers full-rail-compatible dynamic range for line-level analog signals. |
| Power Dissipation | 400 mW - determines thermal derating requirement; junction-to-ambient θJA = 187°C/W for PDIP package. |
| ESD Tolerance | 300 V HBM - mandates ESD-safe handling; leads must be shorted during storage to prevent gate oxide damage. |
Pinout & Package
LM1458N/NOPB uses an 8-pin plastic dual in-line package (PDIP), designated as package drawing P (R-PDIP-T8), with 0.300-inch lead spacing and 0.100-inch row pitch. Maximum height is 0.197 inch (5.00 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Amplifier A Output | Drives feedback network or next-stage input; capable of ±12 V swing into 10 kΩ. |
| 2 | Amplifier A Inverting Input | Accepts feedback signal; high-impedance node requiring guarded routing in precision layouts. |
| 3 | Amplifier A Non-Inverting Input | Accepts signal source; common-mode range extends to ±12 V with ±15 V supplies. |
| 4 | V− Supply | Common negative rail for both amplifiers; must be decoupled locally with 0.1 µF ceramic capacitor. |
| 5 | Amplifier B Non-Inverting Input | Independent input for second channel; electrically isolated from Amplifier A except via shared bias. |
| 6 | Amplifier B Inverting Input | Second feedback node; same impedance and noise sensitivity as Pin 2. |
| 7 | Amplifier B Output | Second independent output; identical drive capability and slew behavior as Pin 1. |
| 8 | V+ Supply | Common positive rail; shares internal bias network with V−; requires symmetric decoupling. |
Key Features
| Feature | Design Value |
|---|---|
| No external frequency compensation required | Internally compensated for unity-gain stability - eliminates need for external capacitor, simplifying PCB layout and reducing BOM count. |
| Short-circuit protection | Continuous output current limiting prevents device failure during accidental output grounding or capacitive loading. |
| Wide common-mode input range | Operates with inputs up to ±12 V at ±15 V supply - enables direct interfacing with sensors or DACs operating near rail voltages. |
| Low-power consumption | Typical 3.0–5.6 mA total supply current - suitable for battery-powered or thermally constrained analog front-ends. |
| No latch-up under overvoltage | Continues functional operation even if input common-mode exceeds supply rails - improves system resilience in transient-rich environments. |
Applications
| Industrial Sensor Signal Conditioning | Legacy Audio Preamp Stage |
|---|---|
|
Use Scenario: Amplifying low-level millivolt outputs from RTDs, strain gauges, or thermocouples in PLC analog input modules. IC Role / Device Role / Timing Role: Dual-channel DC-coupled instrumentation amplifier core (with external resistors), providing gain and offset adjustment per channel. Use Value: Guaranteed input offset ≤6.0 mV and common-mode rejection ≥70 dB minimize measurement drift across 0°C–70°C ambient range. |
Use Scenario: Boosting microphone or line-level signals prior to ADC sampling in vintage-style audio equipment or test instruments. IC Role / Device Role / Timing Role: Dual non-inverting voltage amplifier with fixed gain (e.g., ×10 or ×20), leveraging rail-to-rail compatible output swing. Use Value: ±12 V output swing into 10 kΩ meets line-level standards (±1.23 V RMS ≈ +4 dBu); low THD preserved by stable internal compensation. |
| DC Motor Speed Feedback Amplifier | Analog Power Supply Error Amplifier |
|
Use Scenario: Converting tachometer generator voltage into proportional speed command for closed-loop motor control in HVAC blowers or conveyor drives. IC Role / Device Role / Timing Role: Single-supply configured integrator or proportional amplifier in feedback path of PWM motor driver IC. Use Value: Short-circuit protected outputs tolerate inductive kickback transients; wide input voltage range accommodates varying tach amplitudes. |
Use Scenario: Regulating output voltage in linear or switching power supplies by comparing sensed output to reference and driving pass element. IC Role / Device Role / Timing Role: Dual error amplifier: one for voltage loop, one for current limit sensing - sharing common V+/V− rails. Use Value: Independent amplifier sections allow simultaneous voltage and current regulation without cross-talk; no external compensation reduces loop instability risk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM1458M/NOPB | SOIC-8 package; same electrical specs and 0°C to +70°C rating; lower thermal resistance (θJA = 150°C/W vs. 187°C/W). | Suitable for space-constrained PCBs; requires surface-mount reflow process instead of through-hole insertion. | Select when board area or automated assembly favors SOIC; verify trace width and thermal relief for PDIP replacement. |
| LM1558H | TO-99 metal can package; −55°C to +125°C operation; higher max supply (±22 V); 500 mW power dissipation. | Required for military, aerospace, or extended-temperature industrial deployments where LM1458N/NOPB fails qualification. | Choose only when extended temperature range or hermetic packaging is mandatory; not drop-in due to different footprint and lead form. |
Compared with LM1458M/NOPB, LM1458N/NOPB offers through-hole manufacturability and simpler thermal management on low-density boards; versus LM1558H, it trades temperature range and ruggedness for cost and commercial availability - making it optimal for cost-sensitive, non-military analog subsystems.
Availability
LM1458N/NOPB is available at Aetrix Electronics and suitable for industrial sensor interfaces, legacy audio equipment repair, and analog power supply design requiring stable component supply and long-term obsolescence mitigation.
Supply support for LM1458N/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 LM1458N/NOPB belongs to TI's legacy general-purpose op-amp product line, engineered for reliability and ease of use in cost-sensitive analog signal chains where high speed or ultra-low noise are not primary requirements.
FAQ
What is the maximum supply voltage for LM1458N/NOPB?
The absolute maximum supply voltage for LM1458N/NOPB is ±18 V. Exceeding this limit risks permanent damage. Operation at ±15 V is standard and ensures all guaranteed specifications - including output swing, gain, and input common-mode range - remain valid across the full 0°C to +70°C temperature range.
Does LM1458N/NOPB require external compensation capacitors?
No, LM1458N/NOPB is internally compensated for unity-gain stability. No external capacitor is needed for stable operation at any closed-loop gain ≥1. This eliminates layout complexity and potential phase-margin errors associated with external compensation networks.
Can LM1458N/NOPB replace LM1558H in a design?
LM1458N/NOPB cannot directly replace LM1558H in applications requiring operation below 0°C or above +70°C, or those needing ±22 V supply capability or 500 mW power dissipation. The LM1558H also uses TO-99 packaging, making physical replacement impossible without PCB redesign.
What is the input offset voltage specification for LM1458N/NOPB?
The input offset voltage for LM1458N/NOPB is guaranteed ≤6.0 mV at 25°C and RS ≤10 kΩ. At temperature extremes within its 0°C to +70°C range, offset may increase - typical values remain ≤7.5 mV, impacting DC accuracy in precision gain stages unless nulling is applied.
Is LM1458N/NOPB RoHS compliant?
Yes, LM1458N/NOPB is RoHS compliant, with lead finish specified as NIPDAU (Nickel/Palladium/Gold) and MSL rating Level-1-NA-UNLIM. Its PDIP package meets JEDEC J-STD-020 moisture sensitivity requirements for standard through-hole assembly processes.
LM1458N/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 0.5V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 200 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 3mA (x2 Channels)
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 36 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
LM1458N/NOPB FAQ
1.How can I place an order for LM1458N/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM1458N/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 LM1458N/NOPB reliable?
The price and inventory of LM1458N/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM1458N/NOPB is usually 5 days.
3.What payment methods are accepted for LM1458N/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM1458N/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM1458N/NOPB?
LM1458N/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM1458N/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 LM1458N/NOPB?
For technical support, including LM1458N/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM1458N/NOPB requirements.
6.How does Aetrix verify that LM1458N/NOPB is sourced from the original manufacturer or authorized distributors?
All LM1458N/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 LM1458N/NOPB meets industry standards.
7.What is the process for return or replacement of LM1458N/NOPB?
All LM1458N/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM1458N/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 LM1458N/NOPB part is unused and in its original packaging.
Return procedure for LM1458N/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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