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STMicroelectronics MC1458N
- Part No.:
- MC1458N
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
MC1458N.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8MINI DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,134
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Product details
Overview
MC1458N from STMicroelectronics is a high-performance, monolithic dual operational amplifier designed for analog signal conditioning in industrial and instrumentation systems. It delivers large input voltage range (±12 V), high open-loop gain (50–200 V/mV), and 1 MHz unity-gain bandwidth, with no external frequency compensation required. Used in active filtering and precision summing circuits where rail-to-rail input is not needed but robust DC accuracy and stability are critical.
For engineers reviewing the MC1458N datasheet, MC1458N pinout, MC1458N application, or MC1458N equivalent, key selection criteria include input offset voltage (1–6 mV), supply current (2.3–6 mA), output swing (±10 to ±14 V into 2–10 kΩ), slew rate (0.2–0.8 V/µs), and SO8 package compatibility with legacy DIP-8 footprints via adapter boards.
Technical Context
The MC1458N integrates two independent high-gain op-amps on a single silicon die with matched internal transistor pairs, enabling precise differential operation without external trimming. Its bipolar input stage provides low input bias current (30–800 nA) and high common-mode rejection (70–90 dB), supporting stable closed-loop configurations across temperature (0–70 °C or –40–105 °C variants).
It operates from dual supplies up to ±22 V, features intrinsic short-circuit protection, and maintains phase margin ≥65° and gain margin ≥11 dB under unity-gain conditions - eliminating need for external compensation capacitors in most feedback topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | ±22 V max - supports wide dynamic range signal handling in industrial power rails |
| Input Offset Voltage | 1–6 mV - determines DC error in precision integrators and summing amplifiers |
| Large-Signal Voltage Gain | 50–200 V/mV - enables high closed-loop accuracy with minimal gain error at low frequencies |
| Unity-Gain Bandwidth | 1 MHz - sets usable small-signal bandwidth for active filters and buffers up to ~100 kHz |
| Slew Rate | 0.2–0.8 V/µs - limits full-power output swing speed; constrains large-signal response in function generators |
| Input Common-Mode Range | ±12 V - allows operation with inputs near supply rails, easing level-shifting in multi-stage designs |
| Output Short-Circuit Current | 10–35 mA - defines safe drive capability into low-Z loads without latch-up or thermal shutdown |
Pinout & Package
MC1458N is housed in an 8-pin SOIC (SO8) surface-mount package, measuring 4.9 mm × 6.0 mm × 1.75 mm, with 1.27 mm pitch and ECOPACK® environmental compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting input of Amp A | Accepts feedback network connection for standard inverting amplifier configuration |
| 2 | Non-inverting input of Amp A | Reference point for differential input; used in voltage follower or non-inverting gain stages |
| 3 | Output of Amp A | Drives external load or next stage; rated for ±10–14 V swing into 2–10 kΩ |
| 4 | Negative supply (V−) | Common return for both amplifiers; must be decoupled locally to minimize noise coupling |
| 5 | Non-inverting input of Amp B | Independent reference node for second channel; electrically isolated from Amp A inputs |
| 6 | Inverting input of Amp B | Supports dual-channel summing or cascaded filter stages without inter-channel crosstalk |
| 7 | Output of Amp B | Second independent output; channel separation >120 dB ensures minimal signal leakage between paths |
| 8 | Positive supply (V+) | Power rail for both amplifiers; requires local 100 nF ceramic bypass capacitor |
Key Features
| Feature | Design Value |
|---|---|
| No external frequency compensation required | Enables stable unity-gain operation without added capacitor, reducing BOM count and board area |
| High common-mode rejection (70–90 dB) | Maintains signal integrity in noisy environments such as motor control feedback loops |
| Short-circuit protected outputs | Allows safe operation during prototyping, test fixture miswiring, or transient overload events |
| Large input voltage range (±12 V) | Permits direct interfacing with ±10 V industrial sensor outputs without attenuation or level shift |
| No latch-up behavior | Ensures reliable recovery after overvoltage or reverse-bias transients on input pins |
Applications
| Summing Amplifier | Voltage Follower |
|---|---|
Use Scenario: Combining multiple analog sensor signals (e.g., thermocouple, strain gauge, pressure transducer) into a single conditioned output for ADC sampling. IC Role / Device Role / Timing Role: Dual op-amp configured as precision inverting summer with matched resistors; second channel buffers reference or provides offset correction. Use Value: Input offset voltage ≤6 mV ensures sub-10 mV summation error across temperature; high CMRR rejects shared-mode noise from distributed sensors. | Use Scenario: Isolating high-impedance pH probe or photodiode transimpedance output before long cable runs to data acquisition hardware. IC Role / Device Role / Timing Role: Non-inverting unity-gain buffer per channel; preserves signal amplitude while driving 100 pF + 1 kΩ cable impedance. Use Value: Slew rate ≥0.2 V/µs supports step response fidelity up to 10 kHz; low input bias current (≤800 nA) prevents probe loading-induced drift. |
| Active Filtering | Function Generator |
Use Scenario: Implementing 2nd-order low-pass and band-pass filters in audio test equipment and vibration analysis front-ends. IC Role / Device Role / Timing Role: Dual amplifier used in biquad topology - one as integrator, one as summer - enabling tunable cutoff and Q-factor. Use Value: 1 MHz GBW and 0.8 V/µs slew rate support filter corner frequencies up to 100 kHz with <1% gain error; low THD (0.02%) preserves waveform purity. | Use Scenario: Generating triangle and square waveforms in benchtop signal sources with adjustable frequency and amplitude. IC Role / Device Role / Timing Role: One amp as integrator, second as comparator with hysteresis - forming classic triangle-square oscillator core. Use Value: Phase margin ≥65° ensures stable oscillation without ringing; output short-circuit current ≥10 mA drives 50 Ω coaxial outputs directly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM358DT | Single-supply optimized; lower gain (100 V/mV typ), higher input offset (2–7 mV), slower slew rate (0.3 V/µs) | Better suited for 3.3 V/5 V microcontroller interfaces; less ideal for ±15 V industrial signal chains | Select when operating from single rail or cost-sensitive consumer designs require basic dual op-amp functionality |
| NE5532D | Higher slew rate (9 V/µs), lower noise (5 nV/√Hz), wider bandwidth (10 MHz), but higher supply current (8 mA/ch) | Preferred for audio line drivers and high-fidelity active crossovers where bandwidth and SNR dominate | Select when signal fidelity, speed, or low-noise performance outweighs power budget constraints |
Compared with LM358DT and NE5532D, the MC1458N occupies a mid-tier niche: superior DC precision and dual-supply headroom versus LM358, yet more power-efficient and cost-effective than NE5532 for general-purpose industrial analog stages requiring no audio-grade specs.
Availability
MC1458N is available at Aetrix Electronics and suitable for active filtering, precision summing amplifiers, voltage followers, and function generator circuits requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MC1458N 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
STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in automotive, industrial, and power discrete solutions with strong analog IP heritage.
The MC1458N belongs to ST's legacy precision analog amplifier product line, originally developed for industrial instrumentation and test equipment demanding reliability, predictable DC performance, and long-term parametric stability.
FAQ
Is MC1458N pin-compatible with older DIP-8 versions like MC1458CP?
No - MC1458N uses an SO8 surface-mount package, while MC1458CP uses an 8-pin PDIP through-hole package. Pin numbering and physical layout match (1–8 same function), but PCB footprint and soldering method differ. Adapter boards or re-layout are required for drop-in replacement in legacy DIP designs.
Does MC1458N require external compensation capacitors?
No - the MC1458N is internally compensated for unity-gain stability. Its phase margin exceeds 65° and gain margin exceeds 11 dB under standard test conditions (VCC = ±15 V, RL = 2 kΩ, CL = 100 pF), allowing stable operation without external capacitors in inverting, non-inverting, or follower configurations.
What is the maximum junction temperature for continuous operation?
The absolute maximum junction temperature is 150 °C. With SO8 package thermal resistance θJA ≈ 125 °C/W (typical, still-air), sustained power dissipation above ~120 mW requires PCB copper pour or airflow to avoid exceeding Tj(max); full-load 300 mW rating assumes ideal heatsinking.
Can MC1458N drive a 600 Ω audio line?
Not optimally - its output resistance is 75 Ω and short-circuit current is 10–35 mA, making it unsuitable for direct 600 Ω line driving without external buffering. For professional audio, use dedicated line drivers (e.g., THAT Corporation ICs) or add discrete emitter-follower stages to maintain signal integrity and impedance matching.
MC1458N Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 0.8V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 30 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 2.3mA
- Current - Output / Channel:
- 25 mA
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-Mini DIP
MC1458N FAQ
1.How can I place an order for MC1458N through Aetrix?
Please submit a Request for Quotation (RFQ) for MC1458N 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 MC1458N reliable?
The price and inventory of MC1458N are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC1458N is usually 5 days.
3.What payment methods are accepted for MC1458N?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC1458N transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC1458N?
MC1458N orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC1458N 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 MC1458N?
For technical support, including MC1458N datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC1458N requirements.
6.How does Aetrix verify that MC1458N is sourced from the original manufacturer or authorized distributors?
All MC1458N 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 MC1458N meets industry standards.
7.What is the process for return or replacement of MC1458N?
All MC1458N units undergo pre-shipment inspection (PSI). If there is an issue with MC1458N, 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 MC1458N part is unused and in its original packaging.
Return procedure for MC1458N:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MC1458N Tags
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LM358DT
STMicroelectronics
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LM2904DR
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LM2904DGKR
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LM324DR
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
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LM324PWR
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LM2902PWR
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LM2902DR
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LM358P
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