My Inquiry
My Account
Texas Instruments LM158AH
- Part No.:
- LM158AH
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- TO-99-8 Metal Can
- Datasheet:
-
LM158AH.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT TO99-8
- Quantity:
- Payment:
- Shipping:
Inventory:475
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM158AH from Texas Instruments is a dual, low-power operational amplifier designed for single-supply operation with rail-to-ground input and output capability. It delivers 100 dB DC voltage gain, 1 MHz unity-gain bandwidth (temperature compensated), 2 mV max input offset voltage, and draws only 500 μA supply current. It is used in 4–20 mA current loop transmitters where ground-referenced sensing and output swing to GND are required.
For engineers reviewing the LM158AH datasheet, LM158AH pinout, LM158AH application, or LM158AH equivalent, this page provides verified specifications, package mapping to TO-CAN (8), validated pin functions, real-world use cases in industrial signal conditioning, and two confirmed alternative parts with documented technical and application differences.
Technical Context
The LM158AH uses PNP-input transistor pairs enabling input common-mode voltage range extending to ground and differential input voltage range equal to the full supply voltage. Its internal frequency compensation ensures stable unity-gain operation across temperature, and its bias network maintains constant 500 μA supply current from 3 V to 32 V.
It operates over −55°C to +125°C, supports single-supply (3–32 V) or dual-supply (±1.5 V to ±16 V) configurations, and features rail-to-ground output swing-critical for interfacing with logic and low-voltage ADCs without level-shifting circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 32 V single supply; enables direct interface with 3.3-V and 5-V digital systems without auxiliary rails |
| DC Voltage Gain | 100 dB (100,000×); sufficient for precision DC amplification in sensor front-ends and transducer interfaces |
| Unity-Gain Bandwidth | 1 MHz (temperature compensated); stable for closed-loop gains ≥1 with predictable phase margin |
| Input Offset Voltage | 2 mV max at 25°C; supports accurate low-level signal amplification in 4–20 mA transmitter feedback loops |
| Supply Current | 500 μA per amplifier (typical); enables battery-powered or energy-constrained industrial monitoring nodes |
| Input Common-Mode Range | Includes ground (0 V); allows direct connection of grounded sensors (e.g., RTDs, strain gauges) without biasing resistors |
| Output Voltage Swing | Swings to ground (GND) on single supply; eliminates need for negative rail in analog output stages driving PLC inputs |
Pinout & Package
LM158AH is packaged in TO-CAN (8) metal can, 9.08 mm × 9.09 mm body size, with hermetically sealed construction suitable for high-reliability military and aerospace applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUTA (Pin 1) | Output, Channel A | Amplified output of first op-amp; capable of sourcing/sinking up to 40 mA and swinging to GND |
| –INA (Pin 2) | Inverting Input, Channel A | Differential input node; accepts signals down to GND; PNP input stage prevents latch-up under large differential voltages |
| +INA (Pin 3) | Non-inverting Input, Channel A | Differential input node; supports common-mode range from GND to V+−1.5 V at 25°C |
| GND / V– (Pin 4) | Ground / Negative Supply | Reference node for single-supply operation; serves as return path for both amplifiers and bias network |
| +INB (Pin 5) | Non-inverting Input, Channel B | Second amplifier input; identical electrical behavior to +INA; enables dual-channel signal processing in one package |
| –INB (Pin 6) | Inverting Input, Channel B | Second amplifier inverting input; supports same input voltage range and protection characteristics as –INA |
| OUTB (Pin 7) | Output, Channel B | Independent output channel; electrically isolated from OUTA; allows simultaneous dual-loop control or signal buffering |
| V+ (Pin 8) | Positive Supply | Main power input; supplies both amplifiers; current draw remains stable across 3–32 V range |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply rail-to-ground operation | Enables direct interfacing with grounded transducers and microcontroller ADCs without external level shifters or negative rails |
| Temperature-compensated unity-gain crossover | Maintains stable 1 MHz bandwidth across −55°C to +125°C, eliminating gain drift in outdoor or engine-bay environments |
| Input bias current temperature compensation | Stabilizes input error contribution over temperature-critical for high-impedance sensor interfaces like thermocouples |
| Large differential input voltage tolerance | Withstands input differential voltages exceeding V+, removing need for external clamping diodes in noisy industrial settings |
| Low 500 μA supply current | Supports always-on condition monitoring in remote field devices powered by coin cells or energy-harvesting circuits |
Applications
| 4–20 mA Current Loop Transmitter | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Converting a 0–5 V sensor output into a robust 4–20 mA current signal for long-distance transmission over twisted-pair wiring in factory automation. IC Role / Device Role / Timing Role: LM158AH serves as the core transconductance amplifier and feedback integrator in the current-output stage, with Channel A performing I/V conversion and Channel B implementing precision current-sense feedback. Use Value: Rail-to-ground input/output allows direct connection to 0-V referenced sensors and DACs; low offset ensures <±0.1% FSR current accuracy across temperature. |
Use Scenario: Amplifying low-level outputs from RTD, thermistor, or bridge-based pressure sensors in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: LM158AH operates as dual-channel instrumentation front-end: Channel A buffers and gains the sensor signal; Channel B configures as reference buffer or active filter stage. Use Value: Input common-mode range including ground eliminates input bias networks; 100 dB gain enables >60 dB dynamic range in 16-bit data acquisition systems. |
| Single-Supply Active Filter | Microcontroller Analog Interface |
Use Scenario: Implementing a second-order low-pass filter for anti-aliasing before an ADC in a battery-powered environmental monitor. IC Role / Device Role / Timing Role: LM158AH configures as dual op-amp Sallen-Key topology-Channel A as unity-gain buffer, Channel B as active filter core-with no external negative supply required. Use Value: Unity-gain stability and 1 MHz bandwidth support cutoff frequencies up to ~100 kHz; 500 μA quiescent current extends battery life in portable instruments. |
Use Scenario: Level-shifting and buffering analog sensor outputs (e.g., potentiometer wiper, analog joystick) to match 0–3.3 V input range of ARM Cortex-M microcontrollers. IC Role / Device Role / Timing Role: LM158AH acts as rail-to-rail input/output voltage follower and gain stage, directly interfacing between unregulated sensor supplies and MCU ADC references. Use Value: Output swing to GND ensures full 0-V compliance; wide supply range (3–32 V) accommodates varying sensor excitation voltages without redesign. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM358H | Same pinout and function, but rated for 0°C to +70°C (vs. LM158AH's −55°C to +125°C); higher input offset voltage (9 mV max vs. 2 mV) | Not qualified for extended temperature or military-grade systems; acceptable for commercial-grade consumer or office equipment | Select LM358H only when ambient operating temperature stays within 0–70°C and offset-critical precision is not required. |
| LM2904H | Identical TO-CAN (8) package; rated −40°C to +85°C; lower CMRR (50 dB min vs. 70 dB) and PSRR (50 dB min vs. 65 dB) | Suitable for automotive body electronics but lacks the high-temperature stability and noise rejection needed in industrial control cabinets | Choose LM2904H for cost-sensitive automotive applications where extended temperature range is unnecessary and moderate PSRR suffices. |
Compared with LM358H and LM2904H, the LM158AH provides superior thermal ruggedness, tighter input offset, and higher CMRR/PSRR-making it the only option qualified for MIL-STD-883-compliant aerospace, defense, and downhole oilfield electronics where reliability across extreme temperature excursions is non-negotiable.
Availability
LM158AH is available at Aetrix Electronics and suitable for 4–20 mA current loop transmitters, industrial sensor signal conditioning, single-supply active filters, and microcontroller analog interface designs requiring stable component supply across extended temperature ranges.
Supply support for LM158AH 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and communications markets.
The LM158AH belongs to TI's legacy high-reliability linear amplifier family, specifically engineered for military, aerospace, and harsh-environment industrial applications demanding extended temperature operation and hermetic packaging.
FAQ
What is the operating temperature range of the LM158AH?
The LM158AH is specified for operation from −55°C to +125°C. This extended temperature range is validated per MIL-STD-883 test methods and makes the LM158AH suitable for deployment in aerospace avionics, downhole drilling tools, and engine-control units where ambient conditions exceed commercial-grade limits. The LM158AH maintains all key parameters-including gain, offset, and bandwidth-within datasheet limits across this full range.
Does the LM158AH support true rail-to-rail input and output?
The LM158AH supports rail-to-ground input (common-mode range includes 0 V) and rail-to-ground output (output swings to GND on single supply), but does not achieve rail-to-rail swing at the positive rail-its output typically reaches within ~1.5 V of V+. This architecture enables direct interfacing with grounded sensors and logic-level ADCs while maintaining robust PNP input stage performance. The LM158AH output cannot reach V+ due to internal saturation voltage of the output transistors.
Can the LM158AH be used with a 3.3-V supply?
Yes, the LM158AH operates reliably from 3 V to 32 V single supply, including standard 3.3-V digital system rails. At 3.3 V, it maintains functional gain, bandwidth, and output drive capability-verified in TI's Electrical Characteristics tables. Its low 500 μA supply current and ground-swinging output make it ideal for interfacing with 3.3-V microcontrollers and low-voltage ADCs in portable and IoT edge devices.
How does the LM158AH differ from the LM358 in terms of reliability and qualification?
The LM158AH is a high-reliability variant qualified to MIL-STD-883 with screening for burn-in, temperature cycling, and hermeticity-unlike the commercial LM358. It features tighter initial offset (2 mV vs. 9 mV), guaranteed operation to +125°C (vs. +70°C), and TO-CAN (8) metal-can packaging for enhanced EMI immunity and moisture resistance. These attributes make the LM158AH appropriate for mission-critical systems where long-term parametric stability and environmental resilience are mandatory.
Is the LM158AH pin-compatible with other dual op-amps in TO-CAN (8) packages?
Yes, the LM158AH uses the standard TO-CAN (8) pinout defined in TI's LMx58-N family: Pin 1 = OUTA, Pin 2 = –INA, Pin 3 = +INA, Pin 4 = GND/V–, Pin 5 = +INB, Pin 6 = –INB, Pin 7 = OUTB, Pin 8 = V+. This matches LM358H, LM258H, and LM2904H in the same package, enabling drop-in replacement in existing TO-CAN layouts-provided temperature, offset, and PSRR requirements align with the target application.
LM158AH 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:
- 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:
- TO-99-8
LM158AH FAQ
1.How can I place an order for LM158AH through Aetrix?
Please submit a Request for Quotation (RFQ) for LM158AH 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 LM158AH reliable?
The price and inventory of LM158AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM158AH is usually 5 days.
3.What payment methods are accepted for LM158AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM158AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM158AH?
LM158AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM158AH 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 LM158AH?
For technical support, including LM158AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM158AH requirements.
6.How does Aetrix verify that LM158AH is sourced from the original manufacturer or authorized distributors?
All LM158AH 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 LM158AH meets industry standards.
7.What is the process for return or replacement of LM158AH?
All LM158AH units undergo pre-shipment inspection (PSI). If there is an issue with LM158AH, 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 LM158AH part is unused and in its original packaging.
Return procedure for LM158AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM158AH 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
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
