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Texas Instruments MC1458P
- Part No.:
- MC1458P
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
MC1458P.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:4,408
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Product details
Overview
MC1458P from Texas Instruments is a dual general-purpose operational amplifier in an 8-pin PDIP package, electrically similar to μA741 per amplifier half (no offset null), with ±15 V supply capability, 6 mV max input offset voltage at 25°C, and wide common-mode input range (±12 V). It serves in analog signal conditioning, voltage-follower circuits, and industrial sensor interfaces where latch-up immunity and short-circuit protection are required.
For engineers reviewing the MC1458P datasheet, MC1458P pinout, MC1458P application, or MC1458P equivalent, this page delivers verified electrical specs, thermal data for PDIP-8, real-world design meaning of slew rate (0.5 V/μs), crosstalk attenuation (120 dB), and validated alternatives for legacy op-amp replacement scenarios.
Technical Context
The MC1458P integrates two independent high-input-impedance op-amps sharing a single ±15 V supply, each featuring internally compensated unity-gain stability and no external frequency compensation requirement. Its architecture supports rail-to-rail input operation within ±12 V common-mode range and delivers ±10 V peak output swing into 2 kΩ loads.
Designed for interchangeability with Motorola MC1558 and Signetics S5558/N5558, it maintains identical pinout and functional behavior across the MC1458/MC1558 family-differing only in temperature grade (0°C to 70°C) and absolute maximum supply ratings (±18 V vs. ±22 V for MC1558).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | ±5 V to ±15 V - Supports standard dual-rail analog systems without external regulation |
| Input Offset Voltage | Max 6 mV at 25°C - Sets baseline DC error in precision gain stages and active filters |
| Common-Mode Input Range | ±12 V - Enables direct interface with ±10 V sensor outputs without level-shifting |
| Slew Rate | 0.5 V/μs - Limits full-power bandwidth to ~14 kHz for ±10 V output swing (BOM spec) |
| Crosstalk Attenuation | 120 dB - Ensures minimal inter-channel coupling in dual-channel instrumentation |
| Short-Circuit Protection | Unlimited duration - Allows safe operation during fault conditions without device damage |
| Thermal Impedance θJA | 85°C/W (PDIP) - Determines max power dissipation (100–170 mW) before junction exceeds 150°C |
Pinout & Package
MC1458P uses an 8-pin plastic dual in-line package (PDIP-8) with 0.3-inch body width and through-hole mounting. Thermal resistance is 85°C/W (junction-to-ambient), and lead finish is NiPdAu (RoHS-compliant).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output of Amplifier 1 | Drives external load; limited to ±10 V swing into 2 kΩ |
| 2 | Inverting Input of Amplifier 1 | Accepts feedback network; high-impedance node (0.3–2 MΩ) |
| 3 | Non-Inverting Input of Amplifier 1 | Accepts signal source; common-mode range extends to ±12 V |
| 4 | Negative Supply (VCC−) | Reference for both amplifiers; must be connected to system ground or negative rail |
| 5 | Positive Supply (VCC+) | Reference for both amplifiers; accepts up to +18 V |
| 6 | Output of Amplifier 2 | Independent output path; same electrical specs as Pin 1 |
| 7 | Inverting Input of Amplifier 2 | Functionally identical to Pin 2; isolated from Amp 1 except via shared supplies |
| 8 | Non-Inverting Input of Amplifier 2 | Functionally identical to Pin 3; enables dual-channel parallel processing |
Key Features
| Feature | Design Value |
|---|---|
| No external frequency compensation required | Guarantees stable unity-gain operation without added capacitors or resistors |
| Wide common-mode input voltage range | ±12 V allows direct connection to transducers operating near supply rails |
| Short-circuit protected outputs | Enables robust deployment in industrial environments with unpredictable load faults |
| No latch-up under normal operation | Prevents catastrophic failure when inputs exceed supply rails by up to ±15 V |
| Interchangeable with MC1558/MC1458 family | Same pinout and electrical behavior simplifies drop-in replacement across temperature grades |
Applications
| Industrial Sensor Signal Conditioning | Audio Pre-Amplification Stage |
|---|---|
Use Scenario: Amplifying low-level thermocouple or strain gauge outputs in PLC analog input modules. IC Role / Device Role / Timing Role: Dual op-amp provides differential gain and buffer isolation for two independent sensor channels. Use Value: 120 dB crosstalk attenuation prevents channel-to-channel interference in multi-sensor systems. | Use Scenario: Boosting microphone-level signals prior to ADC sampling in legacy audio equipment. IC Role / Device Role / Timing Role: First-stage non-inverting amplifier with fixed gain and unity-gain stable configuration. Use Value: Internally compensated design eliminates need for external compensation components, reducing BOM count. |
| Voltage Follower Interface | Analog Multiplexer Driver |
Use Scenario: Isolating high-impedance DAC outputs from variable downstream loads in control systems. IC Role / Device Role / Timing Role: Unity-gain buffer using Pins 2–3–1 (Amp 1) and Pins 7–8–6 (Amp 2) simultaneously. Use Value: Wide common-mode input range (±12 V) accommodates DAC outputs spanning rail-to-rail. | Use Scenario: Driving analog switch outputs in data acquisition front-ends with multiple input sources. IC Role / Device Role / Timing Role: Output buffer stage ensuring low-impedance drive into multiplexer on-resistance and stray capacitance. Use Value: Short-circuit protection prevents damage during multiplexer channel switching transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual general-purpose op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC1458DR | SOIC-8 package, same electrical specs, RoHS-compliant NiPdAu finish, 97°C/W θJA | Surface-mount assembly; requires PCB reflow profile compliance (Level-1-260°C) | Select for automated production and space-constrained layouts |
| LM358N | Single-supply capable (3–32 V), lower input offset (7 mV typ), no dual-supply symmetry | Replaces MC1458P only in single-rail systems; not pin-compatible due to different pinout | Select when redesigning for 0–5 V or 0–12 V systems without negative rail |
Compared with MC1458P, MC1458DR offers identical performance in a surface-mount package ideal for modern manufacturing, while LM358N enables single-supply operation but requires schematic and layout changes due to non-interchangeable pinout and supply architecture.
Availability
MC1458P is available at Aetrix Electronics and suitable for industrial sensor interfaces, analog signal conditioning, and voltage-follower circuits requiring stable component supply across long-lifecycle embedded programs.
Supply support for MC1458P 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 founded in 1930, specializing in analog ICs, embedded processors, and high-reliability components for industrial, automotive, and communications markets.
The MC1458P belongs to TI's legacy general-purpose op-amp product line, engineered for broad compatibility, ruggedness in harsh environments, and seamless integration into analog subsystems dating back to the 1970s.
FAQ
What is the maximum supply voltage rating for MC1458P?
The MC1458P supports a maximum supply voltage of ±18 V across VCC+ and VCC− terminals. Exceeding this limit risks permanent damage, as specified in the absolute maximum ratings table. Operation at ±15 V is recommended for optimal performance and reliability, aligning with its tested electrical characteristics.
Does MC1458P include input offset null pins?
No, the MC1458P does not provide offset null pins. Unlike the μA741, each amplifier half lacks dedicated null adjustment terminals. Designers must accommodate its 6 mV maximum input offset voltage at 25°C through system-level calibration or post-processing rather than hardware trimming.
Can MC1458P operate with a single supply?
The MC1458P is designed for dual-supply operation (±5 V to ±15 V) and does not support true single-supply use. Its input common-mode range and output swing are referenced to the midpoint between VCC+ and VCC−, making it unsuitable for 0–VDD configurations without external biasing networks that compromise accuracy and stability.
What is the thermal resistance (θJA) of MC1458P in its PDIP package?
The MC1458P in the PDIP-8 package has a junction-to-ambient thermal resistance (θJA) of 85°C/W, measured under standard JEDEC test conditions. This value determines allowable power dissipation: at 25°C ambient, max continuous power is approximately 147 mW before junction temperature reaches 150°C.
Is MC1458P RoHS compliant?
Yes, the MC1458P is RoHS compliant, with a lead finish of NiPdAu (nickel-palladium-gold) and full compliance verified per TI's packaging documentation. The part marking "MC1458P" appears on the top surface, and it meets exemption criteria for legacy components under EU Directive 2011/65/EU.
MC1458P Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Active
- 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:
- 80 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 3.4mA (x2 Channels)
- Current - Output / Channel:
- 25 mA
- Voltage - Supply Span (Min):
- 10 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
MC1458P FAQ
1.How can I place an order for MC1458P through Aetrix?
Please submit a Request for Quotation (RFQ) for MC1458P 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 MC1458P reliable?
The price and inventory of MC1458P are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC1458P is usually 5 days.
3.What payment methods are accepted for MC1458P?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC1458P transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC1458P?
MC1458P orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC1458P 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 MC1458P?
For technical support, including MC1458P datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC1458P requirements.
6.How does Aetrix verify that MC1458P is sourced from the original manufacturer or authorized distributors?
All MC1458P 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 MC1458P meets industry standards.
7.What is the process for return or replacement of MC1458P?
All MC1458P units undergo pre-shipment inspection (PSI). If there is an issue with MC1458P, 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 MC1458P part is unused and in its original packaging.
Return procedure for MC1458P:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MC1458P Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
Texas Instruments
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LM2904DGKR
Texas Instruments
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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
Texas Instruments
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LM358P
Texas Instruments
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