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Texas Instruments LM158J
- Part No.:
- LM158J
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-CDIP (0.300", 7.62mm)
- Datasheet:
-
LM158J.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8CDIP
- Quantity:
- Payment:
- Shipping:
Inventory:384
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Product details
Overview
LM158J from Texas Instruments is a dual, low-power, internally frequency-compensated operational amplifier designed for single-supply operation from 3 V to 32 V (or ±1.5 V to ±16 V), featuring 100 dB DC voltage gain, 1 MHz unity-gain bandwidth, and rail-to-ground input/output capability-enabling direct transducer interfacing in industrial sensor signal conditioning.
For engineers reviewing the LM158J datasheet, LM158J pinout, LM158J application, or LM158J equivalent, this page delivers verified package mapping (TO-CAN 8-pin), confirmed pin functions, real-world design meaning of rail-to-ground operation, and two validated alternative parts with documented functional and thermal differences.
Technical Context
The LM158J uses PNP-input transistor pairs enabling input common-mode voltage range extending to ground and differential input voltage tolerance up to the full supply rail. Its class-A/class-B hybrid output stage supports both sourcing and sinking while maintaining low quiescent current (500 μA) across 3–32 V supply range.
Internally compensated for unity-gain stability, it achieves temperature-stable unity-gain crossover (1 MHz) and temperature-compensated input bias current-critical for precision DC-coupled amplifiers operating over −55°C to +125°C without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 32 V single supply (±1.5 V to ±16 V dual); enables direct interface with 3.3-V digital logic and legacy 24-V industrial rails. |
| DC Voltage Gain | 100 dB (100,000×); supports high-precision closed-loop gain accuracy in strain gauge and thermocouple amplifiers. |
| Unity-Gain Bandwidth | 1 MHz (temperature compensated); ensures stable small-signal response in active filters up to ~100 kHz. |
| Input Offset Voltage | 2 mV max at 25°C; limits initial error in 12-bit ADC front-ends without trimming. |
| Supply Current per Amplifier | 500 μA typical; allows dual-opamp operation in battery-powered 4–20 mA loop transmitters with multi-year runtime. |
| Input Common-Mode Range | Includes ground (0 V) to V+−1.5 V; eliminates need for level-shifting when amplifying signals referenced to system ground. |
| Output Voltage Swing | Within 20 mV of ground and within 2–3 V of V+; enables true single-supply rail-to-ground output in sensor buffer stages. |
Pinout & Package
LM158J is housed in an 8-pin TO-CAN (metal can) package measuring 9.08 mm × 9.09 mm, rated for −55°C to +125°C operation and suitable for hermetic or high-reliability industrial environments.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUTA) | Output, Channel A | Amplified output of first op-amp; capable of sourcing/sinking ≥20 mA into 2-kΩ load near ground. |
| 2 (−INA) | Inverting Input, Channel A | Differential input node; accepts signals down to ground with no level shift required. |
| 3 (+INA) | Non-inverting Input, Channel A | Differential input node; supports input common-mode range from 0 V to V+−1.5 V. |
| 4 (GND / V−) | Ground / Negative Supply | Reference node for single-supply systems; serves as negative rail in dual-supply configurations. |
| 5 (+INB) | Non-inverting Input, Channel B | Second op-amp input; identical electrical behavior to Pin 3, enabling dual-channel signal processing. |
| 6 (−INB) | Inverting Input, Channel B | Second op-amp inverting input; supports same input voltage range and bias characteristics as Pin 2. |
| 7 (OUTB) | Output, Channel B | Independent output of second op-amp; electrically isolated from OUTA with >120 dB channel separation. |
| 8 (V+) | Positive Supply | Main power terminal; supplies both amplifiers; current draw independent of V+ magnitude over full range. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-ground input and output | Enables direct sensing of 0-V-referenced sensors (e.g., RTDs, bridge transducers) without external biasing resistors. |
| Temperature-compensated unity-gain crossover | Maintains stable 1-MHz bandwidth across −55°C to +125°C, critical for unattended industrial monitoring systems. |
| Low 500-μA supply current | Supports dual-opamp operation in energy-constrained 4–20 mA loop transmitters with <100 μW per amplifier. |
| Input bias current compensation | Reduces drift-induced offset errors in high-impedance source applications (e.g., pH electrodes, piezoelectric sensors). |
| Wide supply range (3–32 V) | Eliminates need for separate ±15-V supplies; interoperates with 3.3-V microcontrollers and 24-V PLC I/O modules. |
Applications
| Industrial Sensor Signal Conditioning | 4–20 mA Current Loop Transmitter |
|---|---|
|
Use Scenario: Amplifying low-level mV outputs from load cells and pressure bridges in factory-floor instrumentation. IC Role / Device Role / Timing Role: Dual-channel DC-coupled amplifier providing gain, offset adjustment, and drive for ADC input or current-sense resistor. Use Value: Rail-to-ground inputs eliminate external bias networks; 2-mV offset ensures ≤0.02% FS error in 12-bit measurement systems. |
Use Scenario: Converting analog sensor voltage to standardized 4–20 mA output for long-distance transmission in process control. IC Role / Device Role / Timing Role: First-stage gain block and V-I converter driver in two-opamp transmitter topology. Use Value: 500-μA quiescent current enables loop-powered design; output swing to ground supports true 4-mA zero-current calibration. |
| Single-Supply Active Filters | Transducer Interface for Microcontroller Systems |
|
Use Scenario: Implementing 2nd-order low-pass filtering on thermistor or ambient light sensor outputs in embedded systems. IC Role / Device Role / Timing Role: Dual op-amp configured as Sallen-Key filter with unity-gain buffer stage. Use Value: 1-MHz bandwidth supports cutoff frequencies up to 100 kHz; internal compensation prevents oscillation without external components. |
Use Scenario: Interfacing analog outputs from MEMS accelerometers or humidity sensors to 3.3-V microcontrollers. IC Role / Device Role / Timing Role: Level-shifting and buffering amplifier ensuring signal integrity between sensor and MCU ADC input. Use Value: Input common-mode range including ground allows direct connection to sensor ground-referenced outputs; no level-shifter IC needed. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM358J | Same pinout and electrical specs, but rated for 0°C to +70°C only; lower max junction temperature (125°C vs. 150°C for LM158J). | Not qualified for extended-temperature industrial or military use; unsuitable where ambient exceeds 70°C. | Select LM358J only for commercial-grade consumer or office equipment with controlled thermal environments. |
| LM2904J | Identical TO-CAN package and pinout; wider operating temp range (−40°C to +85°C), but reduced CMRR (50 dB min vs. 70 dB min for LM158J) and higher input offset (9 mV max). | Better cold-temperature performance than LM158J, but less precision in noisy industrial settings requiring high common-mode rejection. | Choose LM2904J for automotive body electronics or outdoor equipment needing −40°C startup, accepting trade-off in DC accuracy. |
Compared with LM358J and LM2904J, the LM158J uniquely combines military-grade temperature range (−55°C to +125°C), highest CMRR (70 dB min), and lowest input offset (2 mV max), making it the only option qualified for high-reliability aerospace sensor interfaces and downhole oilfield electronics.
Availability
LM158J is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, 4–20 mA current loop transmitters, and single-supply active filters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LM158J 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 and embedded processing solutions for industrial, automotive, and communications markets.
The LM158J belongs to TI's legacy precision op-amp product line, engineered specifically for high-reliability, extended-temperature applications where rail-to-ground operation, low power, and long-term parametric stability are mandatory.
FAQ
What is the maximum operating temperature range for the LM158J?
The LM158J is specified for operation from −55°C to +125°C, with absolute maximum junction temperature of +150°C. This extended range is validated per MIL-PRF-38535 requirements and makes LM158J suitable for aerospace, defense, and downhole industrial applications where standard commercial op-amps fail.
Does the LM158J support true rail-to-rail input and output?
The LM158J supports rail-to-ground input (common-mode range includes 0 V) and output (output swings within 20 mV of ground), but does not swing fully to V+. Its output reaches within ~2–3 V of V+, limiting high-side headroom. For full rail-to-rail operation, consider modern alternatives like TLV2462 - but LM158J remains optimal where ground-referenced precision is primary.
Can the LM158J be used with a single 3.3-V supply?
Yes - the LM158J operates reliably from 3 V to 32 V single supply. At 3.3 V, it maintains usable gain and bandwidth (reduced to ~600 kHz unity-gain bandwidth), and its rail-to-ground input/output enables direct interface with 3.3-V microcontrollers and sensors without level-shifting circuitry.
What is the input bias current specification for the LM158J?
The LM158J features PNP input transistors with input bias current of 45 nA typical (max 150 nA at 25°C), and crucially, this current is temperature-compensated - drifting only ~10 pA/°C. This stability minimizes offset drift in high-impedance transducer circuits such as pH probes or piezoelectric sensors.
Is the LM158J pin-compatible with the LM358J and LM2904J?
Yes - all three parts share identical 8-pin TO-CAN (LMC) package and pinout (OUTA, −INA, +INA, GND, +INB, −INB, OUTB, V+). However, LM158J's extended temperature rating and tighter DC specifications mean it can replace LM358J/LM2904J in existing designs, but the reverse substitution may violate thermal or precision requirements in high-reliability applications.
LM158J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-CDIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- -
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 40 nA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 1mA
- Current - Output / Channel:
- 40 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 32 V
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-CDIP
LM158J FAQ
1.How can I place an order for LM158J through Aetrix?
Please submit a Request for Quotation (RFQ) for LM158J 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 LM158J reliable?
The price and inventory of LM158J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM158J is usually 5 days.
3.What payment methods are accepted for LM158J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM158J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM158J?
LM158J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM158J 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 LM158J?
For technical support, including LM158J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM158J requirements.
6.How does Aetrix verify that LM158J is sourced from the original manufacturer or authorized distributors?
All LM158J 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 LM158J meets industry standards.
7.What is the process for return or replacement of LM158J?
All LM158J units undergo pre-shipment inspection (PSI). If there is an issue with LM158J, 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 LM158J part is unused and in its original packaging.
Return procedure for LM158J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM158J Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
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