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Texas Instruments LM118H/NOPB
- Part No.:
- LM118H/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- TO-99-8 Metal Can
- Datasheet:
-
LM118H/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT TO99-8
- Quantity:
- Payment:
- Shipping:
Inventory:2,452
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Product details
Overview
LM118H/NOPB from Texas Instruments is a precision high-speed operational amplifier designed for wide-bandwidth, fast-settling applications requiring ±5V to ±20V dual supply operation. It delivers 15 MHz small-signal bandwidth, 50 V/μs minimum slew rate, and 250 nA maximum input bias current over its full −55°C to +125°C operating range - enabling use in A/D converter front-ends, active filters, and sample-and-hold circuits.
For engineers reviewing the LM118H/NOPB datasheet, LM118H/NOPB pinout, LM118H/NOPB application, or LM118H/NOPB equivalent, key selection considerations include guaranteed slew rate at temperature, internal unity-gain compensation with optional external feedforward, input overload protection, and TO-99 metal-can package thermal performance for high-reliability analog signal chains.
Technical Context
The LM118H/NOPB uses internally compensated bipolar transistor architecture optimized for stability at unity gain while supporting external feedforward compensation to boost inverting slew rate beyond 150 V/μs. Its input stage features back-to-back diodes for differential input voltage protection up to ±1 V.
It operates with rail-to-rail output swing capability (±12 V into 2 kΩ at ±15 V supplies) and maintains 50 V/μs slew rate across −55°C to +125°C. Input offset voltage is specified at 2–4 mV (typ/max) at 25°C, and large-signal voltage gain exceeds 50 V/mV under standard test conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Small-Signal Bandwidth | 15 MHz - supports stable closed-loop operation up to 15 MHz at unity gain without external compensation. |
| Slew Rate | 50 V/μs min - ensures ≤1 μs 0.1% settling time for 10 V step, critical for fast sample-and-hold and ADC driver stages. |
| Input Bias Current | 250 nA max - enables high-impedance sensor interfacing and low-error integrator designs without excessive offset drift. |
| Supply Voltage Range | ±5 V to ±20 V - accommodates industrial and military-grade analog systems requiring extended dynamic range. |
| Operating Temperature | −55°C to +125°C - qualified for aerospace, downhole, and high-temperature embedded control environments. |
| Input Offset Voltage | 4 mV max at 25°C - limits DC error in precision gain stages and instrumentation amplifier front-ends. |
| Large-Signal Voltage Gain | 50 V/mV min - provides ≥86 dB open-loop gain for accurate closed-loop gain accuracy in feedback networks. |
Pinout & Package
LM118H/NOPB is housed in an 8-pin TO-99 metal-can package (TI package code LMC), with hermetic sealing and low thermal resistance (20°C/W junction-to-case). The package supports direct heatsinking and exhibits superior EMI immunity versus plastic SOIC alternatives.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Offset Null | Connects to external potentiometer for input offset voltage trimming; required for sub-mV DC accuracy. |
| 2 | Inverting Input (−) | Differential input node; protected by back-to-back diodes limiting differential voltage to ±1 V. |
| 3 | Non-Inverting Input (+) | Differential input node; common-mode input range extends to ±11.5 V at ±15 V supplies. |
| 4 | V− Supply | Negative power rail connection; requires local 0.1 μF ceramic bypass capacitor for stability. |
| 5 | Offset Null | Second terminal of offset null potentiometer; used with Pin 1 to balance input stage mismatch. |
| 6 | Output | Class-A/B output stage capable of ±12 V swing into 2 kΩ; includes short-circuit protection. |
| 7 | V+ Supply | Positive power rail connection; same bypassing requirement as Pin 4. |
| 8 | NC | No internal connection; electrically isolated; may be grounded for mechanical shielding in noise-sensitive layouts. |
Key Features
| Feature | Design Value |
|---|---|
| Internal Unity-Gain Compensation | Enables immediate use without external capacitors; eliminates risk of instability due to layout parasitics in gain ≥1 configurations. |
| Feedforward Compensation Support | Allows external capacitor between output and inverting input to raise inverting slew rate >150 V/μs and double bandwidth in inverter topologies. |
| Input/Output Overload Protection | Back-to-back input diodes and current-limited output stage prevent latch-up or damage during transient overvoltage or short-circuit events. |
| Wide Supply Range Compatibility | Operates identically from ±5 V to ±20 V, simplifying design reuse across 10 V to 40 V total supply systems without recalculating bias points. |
| TO-99 Hermetic Metal Package | Provides 150°C max junction temperature rating, 20°C/W junction-to-case thermal resistance, and superior long-term reliability in harsh environments. |
Applications
| High-Speed Data Acquisition | Industrial Signal Conditioning |
|---|---|
|
Use Scenario: Front-end buffer and driver for 12-bit SAR ADC sampling at 1 MSPS in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: Precision unity-gain voltage follower with <1 μs 0.1% settling time, rejecting multiplexer glitches and driving ADC sample capacitor. Use Value: Enables full-scale accuracy without acquisition delay penalty; TO-99 package withstands industrial ambient temperatures up to +125°C. |
Use Scenario: Active filter stage in 4–20 mA transmitter loop-powered sensor interface with 1 kHz cutoff and ±0.1 dB passband ripple. IC Role / Device Role / Timing Role: High-slew-rate op-amp implementing 2nd-order Sallen-Key topology with minimal phase shift at cutoff frequency. Use Value: Maintains loop stability under varying load capacitance; internal compensation prevents peaking even with PCB trace inductance. |
| Test Equipment Amplifier | Aerospace Sensor Interface |
|
Use Scenario: Fast summing amplifier in automated test equipment (ATE) stimulus generator delivering calibrated multi-tone waveforms up to 5 MHz. IC Role / Device Role / Timing Role: Inverting summing node with feedforward-compensated configuration achieving >100 V/μs effective slew rate. Use Value: Eliminates waveform distortion on fast transitions; TO-99 package allows direct mounting to aluminum chassis for ground-loop suppression. |
Use Scenario: Low-drift transducer amplifier in aircraft engine vibration monitoring system exposed to −55°C cold soak and +125°C operational extremes. IC Role / Device Role / Timing Role: Non-inverting gain-of-100 stage with offset-null adjustment for piezoelectric accelerometer signal conditioning. Use Value: Guaranteed 250 nA max input bias current prevents charge leakage errors; −55°C to +125°C spec ensures calibration retention across flight envelope. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM318N/NOPB | Same core architecture but rated only from 0°C to +70°C; higher max input bias current (500 nA) and wider input offset voltage (6–15 mV). | Restricted to commercial-temperature consumer or lab equipment; unsuitable for extended-temperature industrial or aerospace use. | Select LM318N/NOPB only when cost sensitivity outweighs temperature range and DC precision requirements. |
| OPA211IDR | CMOS input (1 pA bias current), lower noise (1.1 nV/√Hz), but narrower bandwidth (45 MHz) and no internal compensation - requires external compensation network. | Better for ultra-low-input-current applications like photodiode amps; less suitable for drop-in replacement in legacy LM118H/NOPB layouts. | Choose OPA211IDR when sub-pA bias and low noise dominate over ease of use and proven TO-99 ruggedness. |
Compared with LM318N/NOPB, LM118H/NOPB offers triple the temperature range and half the input bias current; versus OPA211IDR, it trades 10× higher bias current for plug-and-play stability, hermetic packaging, and guaranteed slew rate over temperature - making it optimal for field-deployed analog signal chains where reliability trumps ultimate DC specs.
Availability
LM118H/NOPB is available at Aetrix Electronics and suitable for high-reliability analog signal conditioning, precision data acquisition, and aerospace sensor interface applications requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for LM118H/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 innovation.
The LM118 series was developed to deliver order-of-magnitude AC performance improvement over legacy op-amps like LM709 while preserving DC precision - targeting military, aerospace, and industrial instrumentation systems demanding speed, stability, and ruggedness.
FAQ
What is the maximum operating temperature range for LM118H/NOPB?
The LM118H/NOPB is specified for continuous operation from −55°C to +125°C, with a maximum junction temperature of 150°C. This extended range is validated per MIL-STD-883 methods and makes LM118H/NOPB suitable for downhole tools, avionics, and industrial control cabinets where ambient temperatures exceed commercial-grade limits. Thermal derating follows a 160°C/W junction-to-ambient resistance in free-air conditions.
Does LM118H/NOPB require external compensation capacitors?
No - LM118H/NOPB includes internal unity-gain frequency compensation, allowing stable operation in gain ≥1 configurations without external components. However, external feedforward compensation (e.g., capacitor from output to inverting input) can be added to increase slew rate beyond 150 V/μs in inverting applications, as documented in TI's SNOSBS8C datasheet Figure 37.
Can LM118H/NOPB drive capacitive loads directly?
LM118H/NOPB is not optimized for direct capacitive loading; driving >100 pF without isolation risks instability. Figure 40 in the datasheet recommends adding a 10 Ω–100 Ω series resistor between the output and capacitive load, or using a dedicated isolation buffer. For sample-and-hold applications with hold capacitors, this isolation network ensures monotonic settling and avoids ringing.
What is the purpose of Pins 1 and 5 on LM118H/NOPB?
Pins 1 and 5 are offset null terminals used together with an external 10 kΩ potentiometer (wiper to V−, ends to Pins 1 and 5) to trim input offset voltage to <0.5 mV. This adjustment is essential in precision DC-coupled amplifiers, such as strain gauge bridges or thermocouple amplifiers, where residual offset would otherwise degrade measurement accuracy at low signal levels.
Is LM118H/NOPB RoHS compliant?
Yes - LM118H/NOPB carries the "/NOPB" suffix indicating lead-free, RoHS-compliant construction with SnAgCu (SAC305) lead finish. It meets JEDEC J-STD-020 moisture sensitivity Level-1 (unlimited floor life) and is qualified for reflow peak temperatures up to 260°C, as confirmed in TI's PACKAGE OPTION ADDENDUM dated 15-Jul-2026.
LM118H/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:
- 70V/µs
- Gain Bandwidth Product:
- 15 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 120 nA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 5mA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 40 V
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-99-8
LM118H/NOPB FAQ
1.How can I place an order for LM118H/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM118H/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 LM118H/NOPB reliable?
The price and inventory of LM118H/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM118H/NOPB is usually 5 days.
3.What payment methods are accepted for LM118H/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM118H/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM118H/NOPB?
LM118H/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM118H/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 LM118H/NOPB?
For technical support, including LM118H/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM118H/NOPB requirements.
6.How does Aetrix verify that LM118H/NOPB is sourced from the original manufacturer or authorized distributors?
All LM118H/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 LM118H/NOPB meets industry standards.
7.What is the process for return or replacement of LM118H/NOPB?
All LM118H/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM118H/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 LM118H/NOPB part is unused and in its original packaging.
Return procedure for LM118H/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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