My Inquiry
My Account
Texas Instruments LM1458MX
- Part No.:
- LM1458MX
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM1458MX.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,867
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM1458MX from Texas Instruments is a dual general-purpose operational amplifier in an 8-pin SOIC package, rated for 0°C to +70°C operation, with ±18V max supply voltage, 3–5.6 mA total supply current, and ±12 V output swing into 10 kΩ load - used in analog signal conditioning, sensor interface, and industrial control feedback loops.
For engineers reviewing the LM1458MX datasheet, LM1458MX pinout, LM1458MX application, or LM1458MX equivalent, this page delivers verified electrical specs, thermal limits, package dimensions, real-world use cases, and two validated alternative op-amps for design continuity and sourcing flexibility.
Technical Context
The LM1458MX integrates two independent high-gain DC-coupled amplifiers sharing only bias circuitry and power rails. It requires no external frequency compensation and avoids latch-up even when input common-mode voltage exceeds supply rails.
Its internal architecture supports rail-to-rail input voltage range up to ±12 V (at ±15 V supply), delivers 20–160 V/mV large-signal voltage gain, and maintains 70–90 dB common-mode and supply rejection across its operating temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | ±18 V max - sets absolute upper limit for single-supply or split-supply operation without damage |
| Operating Temperature | 0°C to +70°C - defines commercial-grade thermal envelope for stable DC offset and gain performance |
| Input Offset Voltage | 1.0–6.0 mV - directly impacts DC accuracy in precision summing, integrator, or sensor amplifier stages |
| Supply Current (both amps) | 3.0–5.6 mA at ±15 V - determines total quiescent power draw in battery- or thermally constrained systems |
| Output Voltage Swing | ±12 V into 10 kΩ - specifies usable dynamic range before clipping in line-driver or active filter applications |
| Input Bias Current | 200–500 nA - affects high-impedance transducer interfacing and integrator drift over time |
| CMRR / PSRR | 70–90 dB - quantifies immunity to noise coupling from shared power rails or ground shifts |
Pinout & Package
LM1458MX uses an 8-pin SOIC (Package D, drawing D0008A), 3.9 mm × 4.9 mm body, 1.27 mm pitch, 1.75 mm max height, RoHS-compliant matte tin lead finish, MSL Level-1, tape-and-reel packaging (2500 pcs/reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Amplifier A Output | Drives external load or next stage; limited to ±12 V swing into 10 kΩ |
| 2 | Amplifier A Inverting Input | Accepts feedback network; high-impedance node sensitive to PCB leakage and stray capacitance |
| 3 | Amplifier A Non-Inverting Input | Reference input for follower or differential configurations; CM range extends to ±12 V |
| 4 | Negative Supply (V−) | Common return for both amplifiers; must be decoupled near pin with 0.1 µF ceramic |
| 5 | Amplifier B Non-Inverting Input | Independent reference path; electrically isolated from Amp A except via shared supply rails |
| 6 | Amplifier B Inverting Input | Feedback node for second channel; identical bias and impedance behavior as Pin 2 |
| 7 | Amplifier B Output | Second independent output; same drive capability and voltage limits as Pin 1 |
| 8 | Positive Supply (V+) | Common power rail; supplies both amplifiers; requires local bypassing for stability |
Key Features
| Feature | Design Value |
|---|---|
| No external frequency compensation required | Enables stable unity-gain operation without added capacitors or layout constraints |
| Short-circuit protection on both outputs | Prevents device failure during accidental output-to-ground or output-to-rail faults |
| Wide common-mode input voltage range | Accepts inputs up to ±12 V at ±15 V supply - supports direct interfacing with ±10 V industrial sensors |
| Independent amplifier operation | Allows mixed-function use: one amp as comparator, the other as active filter, without crosstalk |
| Low-power consumption (3–5.6 mA total) | Reduces thermal load in multi-channel analog front-ends and space-constrained PCBs |
Applications
| Industrial Sensor Signal Conditioning | Audio Pre-Amplification 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-op-amp configured as precision instrumentation amplifier front-end and low-pass filter driver. Use Value: Delivers stable 70+ dB CMRR and sub-6 mV input offset to preserve measurement resolution across 0–70°C ambient. |
Use Scenario: Boosting microphone or line-level signals prior to ADC sampling in consumer audio interfaces. IC Role / Device Role / Timing Role: First-stage non-inverting amplifier (gain = 10) followed by AC-coupled buffer driving 10 kΩ ADC input. Use Value: Provides adequate bandwidth and low distortion within ±12 V swing range while consuming under 5.6 mA total supply current. |
| DC Motor Speed Feedback Amplifier | Comparator-Based Threshold Detector |
|
Use Scenario: Converting tachometer generator voltage into clean, scaled feedback signal for closed-loop motor controllers. IC Role / Device Role / Timing Role: Differential amplifier rejecting common-mode noise from motor commutation spikes. Use Value: Maintains accurate gain and offset stability despite EMI exposure, enabled by 90 dB PSRR and short-circuit protected outputs. |
Use Scenario: Detecting overvoltage or undervoltage conditions in power supply monitoring circuits. IC Role / Device Role / Timing Role: One amplifier used open-loop as comparator; second as hysteresis generator or LED driver. Use Value: Eliminates need for external compensation components and supports rail-compatible input sensing up to ±12 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2458N/NOPB | Same pinout, wider temp range (−25°C to +85°C), higher max supply (±22 V), slightly higher Ib (up to 1.5 µA) | Better suited for extended-temperature industrial environments where ambient exceeds 70°C | Select LM2458N/NOPB if board-level thermal management cannot guarantee <70°C junction temperature |
| TL082CDR | JFET-input (Ib = 30 pA), higher slew rate (13 V/µs), lower input bias current, but no short-circuit protection | Preferred for high-impedance source buffering or wideband AC-coupled designs; unsuitable for fault-prone outputs | Choose TL082CDR only when ultra-low input current or faster transient response is required and output protection is handled externally |
Compared with LM1458MX, LM2458N/NOPB offers broader temperature tolerance and higher supply resilience at modest cost increase, while TL082CDR trades robustness for precision and speed - making LM1458MX optimal for cost-sensitive, fault-tolerant, commercial-grade analog signal paths.
Availability
LM1458MX is available at Aetrix Electronics and suitable for industrial sensor interfaces, audio pre-amplification stages, and DC motor feedback circuits requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for LM1458MX 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, embedded processing, and connectivity solutions with emphasis on reliability, longevity, and broad application coverage.
The LM1458MX belongs to TI's legacy general-purpose op-amp product line, engineered for robustness, ease of use, and compatibility across decades of industrial and commercial analog designs.
FAQ
What is the maximum supply voltage rating for LM1458MX?
The LM1458MX has an absolute maximum supply voltage of ±18 V. Exceeding this rating risks permanent damage. Operation at ±15 V is recommended for full specification compliance, and the device must be derated above 70°C ambient per its 100°C max junction temperature limit. Always observe the 260°C peak reflow profile during assembly.
Does LM1458MX require external compensation capacitors?
No, the LM1458MX is internally compensated for unity-gain stability and does not require external frequency compensation components. This simplifies PCB layout and eliminates tuning steps in standard inverting, non-inverting, or follower configurations - a key advantage over decompensated op-amps like the LM741.
Is LM1458MX pin-compatible with LM1458N/NOPB?
Yes, LM1458MX (SOIC-8) and LM1458N/NOPB (PDIP-8) share identical pin numbering and functional assignment, but differ in package type and thermal characteristics. The SOIC version offers better thermal resistance and smaller footprint, while the PDIP variant allows through-hole prototyping and higher board-level heat dissipation.
What is the input common-mode voltage range of LM1458MX?
At ±15 V supply, the LM1458MX accepts input voltages from −12 V to +12 V - exceeding the rails without latch-up. This enables direct connection to ±10 V industrial sensors and simplifies level-shifting in mixed-supply systems. Performance remains specified only within 0°C to +70°C ambient.
How does LM1458MX handle output short-circuit conditions?
The LM1458MX features built-in short-circuit protection on both amplifier outputs, allowing indefinite current limiting during output-to-ground or output-to-rail faults. This prevents thermal runaway and device destruction, making it suitable for unattended industrial equipment where fault exposure is likely.
LM1458MX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 20 mA
- Voltage - Supply Span (Min):
- 36 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
LM1458MX FAQ
1.How can I place an order for LM1458MX through Aetrix?
Please submit a Request for Quotation (RFQ) for LM1458MX 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 LM1458MX reliable?
The price and inventory of LM1458MX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM1458MX is usually 5 days.
3.What payment methods are accepted for LM1458MX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM1458MX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM1458MX?
LM1458MX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM1458MX 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 LM1458MX?
For technical support, including LM1458MX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM1458MX requirements.
6.How does Aetrix verify that LM1458MX is sourced from the original manufacturer or authorized distributors?
All LM1458MX 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 LM1458MX meets industry standards.
7.What is the process for return or replacement of LM1458MX?
All LM1458MX units undergo pre-shipment inspection (PSI). If there is an issue with LM1458MX, 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 LM1458MX part is unused and in its original packaging.
Return procedure for LM1458MX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM1458MX 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…
