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Texas Instruments LM1558H/NOPB
- Part No.:
- LM1558H/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- TO-99-8 Metal Can
- Datasheet:
-
LM1558H/NOPB.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT TO99-8
- Quantity:
- Payment:
- Shipping:
Inventory:293
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Product details
Overview
LM1558H/NOPB from Texas Instruments is a dual general-purpose operational amplifier in an 8-lead TO-99 metal can package, rated for −55°C to +125°C operation, with ±22V supply voltage capability, 500 mW power dissipation, and no external frequency compensation required. It delivers independent amplifier channels sharing bias and supply leads, suited for precision analog signal conditioning in aerospace and industrial control systems.
For engineers reviewing the LM1558H/NOPB datasheet, LM1558H/NOPB pinout, LM1558H/NOPB application, or LM1558H/NOPB equivalent, this page provides verified electrical specifications, thermal limits, package mechanical data, real-world use cases, and validated alternative options aligned with military-grade temperature requirements.
Technical Context
The LM1558H/NOPB integrates two fully independent op-amp cores sharing only a common bias network and V+ / V− supply pins. Its internal architecture enables stable unity-gain operation without external compensation components, supporting wide common-mode input range (±12 V at ±15 V supplies) and differential input voltage tolerance up to ±30 V.
It features short-circuit protected outputs capable of continuous current limiting, input offset voltage ≤6.0 mV over full temperature range, and supply current per amplifier ≤2.8 mA at ±15 V - enabling reliable operation in high-reliability analog front-ends where latch-up immunity and rail-to-rail input stage robustness are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | ±22 V - supports high-voltage analog signal chains without external regulators or level-shifting. |
| Operating Temperature | −55°C to +125°C - qualified for extended-range military, avionics, and downhole industrial applications. |
| Power Dissipation | 500 mW - enables operation in sealed enclosures or high-ambient environments with minimal derating. |
| Input Offset Voltage | ≤6.0 mV (max, full temp range) - ensures low DC error in precision sensor amplification and feedback loops. |
| Large-Signal Voltage Gain | ≥25 V/mV - provides sufficient open-loop gain for accurate closed-loop gain setting in instrumentation circuits. |
| Output Short-Circuit Duration | Continuous - eliminates need for external current-limiting resistors in drive-stage protection. |
| Common-Mode Rejection | ≥70 dB - maintains accuracy when amplifying small differential signals amid noisy supply or ground references. |
Pinout & Package
LM1558H/NOPB uses the 8-lead TO-99 metal can package (TI package code LMC), with hermetically sealed construction, center tab connected to substrate (not internally tied to any signal), and pin 1 identified by a laser mark or notch orientation. Mounting requires thermal consideration due to metal-can thermal path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Amplifier A) | Primary negative feedback node for first op-amp; accepts differential input signals referenced to common-mode range. |
| 2 | Non-Inverting Input (Amplifier A) | Positive input for Amplifier A; supports single-ended or differential input configurations with ≥70 dB CMRR. |
| 3 | Output (Amplifier A) | Low-impedance buffered output capable of sourcing/sinking current into ≥2 kΩ loads with ±10 V swing. |
| 4 | V− (Negative Supply) | Shared negative rail for both amplifiers; must be decoupled locally to minimize crosstalk and PSRR degradation. |
| 5 | Non-Inverting Input (Amplifier B) | Independent positive input for second op-amp; electrically isolated from Amplifier A except via shared bias network. |
| 6 | Inverting Input (Amplifier B) | Second op-amp's negative input; compatible with standard active filter and transimpedance topologies. |
| 7 | Output (Amplifier B) | Dual-output capability enables stereo signal processing, dual-channel sensing, or redundant signal paths. |
| 8 | V+ (Positive Supply) | Shared positive rail; combined with Pin 4 forms dual-supply interface requiring symmetrical bypassing for stability. |
Key Features
| Feature | Design Value |
|---|---|
| No frequency compensation required | Enables immediate use in unity-gain follower or high-speed integrator configurations without external capacitors. |
| Short-circuit protection | Prevents device failure during output overload, enabling direct connection to actuators or long cables without series resistors. |
| Wide common-mode input range | Accepts inputs within ±12 V of either supply rail, simplifying level translation in mixed-signal interfacing. |
| High input resistance | ≥0.3 MΩ minimizes loading on high-impedance sources such as piezoelectric sensors or photodiode transimpedance nodes. |
| Stable operation beyond input common-mode range | Guarantees no latch-up even if input voltages exceed rails - critical for fault-tolerant sensor monitoring circuits. |
Applications
| Aerospace Sensor Signal Conditioning | Industrial Process Controller Analog Front-End |
|---|---|
Use Scenario: Amplifying low-level thermocouple or strain gauge outputs in flight control computers under extreme thermal cycling. IC Role / Device Role / Timing Role: Dual-channel DC-coupled instrumentation amplifier core, providing matched gain and offset performance across temperature. Use Value: −55°C to +125°C rating and hermetic TO-99 packaging ensure long-term reliability without calibration drift in uncontrolled environmental zones. |
Use Scenario: Isolating and scaling 4–20 mA loop signals in PLC analog input modules exposed to EMI-rich factory floors. IC Role / Device Role / Timing Role: Dual op-amp serving as current-to-voltage converter and buffer stage before ADC sampling. Use Value: High CMRR (>70 dB) and input voltage range tolerance suppress common-mode noise induced by motor drives and switching power supplies. |
| Military Communications Receiver IF Stage | Downhole Oilfield Instrumentation |
Use Scenario: Building multi-stage active filters and AGC amplifiers in HF/VHF receiver intermediate frequency chains. IC Role / Device Role / Timing Role: Dual op-amp configured as bandpass filter and variable-gain amplifier in analog signal path prior to demodulation. Use Value: No external compensation requirement allows compact layout with predictable phase margin across −55°C to +125°C. |
Use Scenario: Signal conditioning for pressure and temperature transducers deployed in oil/gas well logging tools operating at 150°C ambient. IC Role / Device Role / Timing Role: Precision dual amplifier for ratiometric sensor excitation and bridge output amplification in harsh thermal gradients. Use Value: Guaranteed parametric performance over full military temperature range eliminates need for external thermal compensation circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM1558H | Same die, non-RoHS-compliant version with SnPb lead finish and unspecified MSL rating. | Approved for legacy military hardware where RoHS exemption applies; not suitable for new EU-market designs. | Select LM1558H/NOPB for RoHS-compliant deployments requiring same performance and hermetic TO-99 reliability. |
| MC1558G | Identical electrical specs and TO-99 package, but manufactured by ON Semiconductor (formerly Motorola); different lot traceability and qualification documentation. | Used in legacy automotive and industrial systems qualified to older MIL-PRF-38535 standards; may lack TI's latest reliability testing reports. | Choose MC1558G only when cross-qualified to existing BOMs with documented equivalence in system-level qualification testing. |
Compared with LM1558H and MC1558G, the LM1558H/NOPB offers identical analog performance and TO-99 mechanical form factor while adding RoHS compliance and TI's current production traceability - making it the preferred choice for new designs requiring certified environmental conformance without sacrificing ruggedness.
Availability
LM1558H/NOPB is available at Aetrix Electronics and suitable for aerospace sensor interfaces, industrial process controllers, and downhole instrumentation requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for LM1558H/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 connectivity technologies, with decades of heritage in high-reliability op-amp design.
The LM1558H/NOPB belongs to TI's legacy military-grade operational amplifier product line, engineered specifically for analog signal integrity in mission-critical systems where temperature resilience, latch-up immunity, and long-term parameter stability are mandatory.
FAQ
What is the maximum junction temperature specification for LM1558H/NOPB?
The LM1558H/NOPB has a maximum junction temperature of 150°C. This limit is defined in the Absolute Maximum Ratings table and governs thermal derating requirements - for example, at ambient temperatures above 100°C, power dissipation must be reduced linearly based on the specified thermal resistance of 150°C/W (junction-to-ambient) in the TO-99 package. Proper heatsinking or board-level thermal management is essential to maintain safe operation of the LM1558H/NOPB in high-temperature environments.
Does LM1558H/NOPB require external compensation capacitors for unity-gain stability?
No, the LM1558H/NOPB is internally compensated for unity-gain stability, eliminating the need for external frequency compensation components. This feature is explicitly stated in the datasheet FEATURES section and confirmed by its guaranteed phase margin across the full −55°C to +125°C operating range. Designers can directly configure the LM1558H/NOPB as a voltage follower, inverting amplifier, or active filter without adding capacitors to Pin 1 or other compensation nodes - simplifying layout and improving reliability in space-constrained or high-vibration applications.
What is the RoHS status and lead finish of LM1558H/NOPB?
The LM1558H/NOPB is RoHS-compliant and carries the "/NOPB" suffix indicating lead-free (Pb-free) construction. According to TI's Package Option Addendum, its lead finish is unspecified in public documentation but conforms to JEDEC J-STD-020 moisture sensitivity Level-1 with unlimited floor life. The TO-99 package uses a metal can body with internal gold-bonded die attach, and the external leads meet RoHS Directive 2011/65/EU requirements - confirming that the LM1558H/NOPB is suitable for environmentally regulated commercial and industrial deployments without exemption requests.
How does LM1558H/NOPB differ from LM1458N/NOPB in terms of temperature rating and supply voltage?
The LM1558H/NOPB is rated for −55°C to +125°C operation and supports ±22 V supply voltage, whereas the LM1458N/NOPB is limited to 0°C to +70°C and ±18 V maximum supply. These differences stem from distinct process qualifications and screening - the LM1558H/NOPB undergoes extended temperature testing and higher-voltage wafer-level stress, making it appropriate for aerospace, defense, and oilfield applications where ambient extremes exceed commercial-grade limits. Both share identical pinout and basic functionality, but the LM1558H/NOPB delivers broader operational margins critical for mission-critical LM1558H/NOPB deployments.
Is LM1558H/NOPB pin-compatible with other TO-99 dual op-amps like MC1558G?
Yes, the LM1558H/NOPB is mechanically and electrically pin-compatible with MC1558G - both use the same 8-lead TO-99 package (JEDEC MO-002), identical pin numbering (Pin 1 = Inverting Input Amp A), and match in all key DC and AC parameters including input offset voltage, supply current, and large-signal gain. However, MC1558G originates from ON Semiconductor's legacy product line and may differ in qualification documentation, lot traceability, and long-term availability assurance. For drop-in replacement in existing designs, verify compatibility using TI's official cross-reference tool before substituting LM1558H/NOPB into MC1558G-based schematics.
LM1558H/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- TO-99-8 Metal Can
- Packaging:
- Tray
- 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):
- 44 V
- Voltage - Supply Span (Max):
- 44 V
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-99-8
LM1558H/NOPB FAQ
1.How can I place an order for LM1558H/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM1558H/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 LM1558H/NOPB reliable?
The price and inventory of LM1558H/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM1558H/NOPB is usually 5 days.
3.What payment methods are accepted for LM1558H/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM1558H/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM1558H/NOPB?
LM1558H/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM1558H/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 LM1558H/NOPB?
For technical support, including LM1558H/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM1558H/NOPB requirements.
6.How does Aetrix verify that LM1558H/NOPB is sourced from the original manufacturer or authorized distributors?
All LM1558H/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 LM1558H/NOPB meets industry standards.
7.What is the process for return or replacement of LM1558H/NOPB?
All LM1558H/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM1558H/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 LM1558H/NOPB part is unused and in its original packaging.
Return procedure for LM1558H/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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