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Texas Instruments MC1458D
- Part No.:
- MC1458D
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MC1458D.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,223
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Product details
Overview
MC1458D from Texas Instruments is a dual general-purpose operational amplifier in SOIC-8 package, electrically similar to μA741 per amplifier half, with ±15 V supply capability, 6 mV max input offset voltage at 25°C, and no internal offset null pins. It delivers 0.5 V/μs slew rate, 1 MHz unity-gain bandwidth, and operates across 0°C to 70°C for industrial signal conditioning and analog interface circuits.
For engineers reviewing the MC1458D datasheet, MC1458D pinout, MC1458D application, or MC1458D equivalent, this page provides verified electrical parameters, SOIC-8 terminal mapping, dual-opamp functional context, thermal derating guidance, and validated alternative options for legacy analog design continuity.
Technical Context
The MC1458D integrates two independent high-input-impedance op-amps sharing common power rails (VCC+, VCC−), each featuring internally compensated dominant-pole architecture enabling stable unity-gain operation without external components. Its input stage supports ±12 V common-mode range and ±30 V differential input voltage.
No latch-up behavior and short-circuit protected outputs enable robust operation in feedback configurations including voltage followers and transimpedance amplifiers. The device uses bipolar junction transistor (BJT) input stages with 0.3–2 MΩ input resistance and 1.4 pF input capacitance, optimized for DC-coupled precision applications within its temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | ±5 V to ±15 V - sets usable rail-to-rail output swing limits and defines maximum safe operating voltage |
| Input Offset Voltage | 6 mV max at 25°C - determines worst-case DC error in precision gain stages without trimming |
| Unity-Gain Bandwidth | 1 MHz - defines maximum closed-loop bandwidth achievable at AV = 1 with stable phase margin |
| Slew Rate | 0.5 V/μs - constrains large-signal transient response time for signals exceeding ~10 kHz at 5 Vpp |
| Common-Mode Input Range | ±12 V - enables direct interfacing with sensors referenced to mid-supply or ground in single-supply derived systems |
| Output Short-Circuit Duration | Unlimited - permits safe operation during fault conditions without thermal shutdown or damage |
| Operating Temperature | 0°C to 70°C - specifies ambient range for guaranteed parametric performance in commercial-grade applications |
Pinout & Package
MC1458D is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package with 1.27 mm pitch, 3.9 mm body width, and 1.75 mm max height. Pin 1 is located at the top-left corner with notch or beveled edge marking orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output of Amplifier 1 (1OUT) | Provides buffered, inverted or non-inverted output signal depending on configuration; drives loads up to ±25 mA |
| 2 | Inverting Input of Amplifier 1 (1IN−) | Accepts feedback or signal source for standard inverting amplifier topology; high-impedance node (0.3–2 MΩ) |
| 3 | Non-Inverting Input of Amplifier 1 (1IN+) | Accepts reference or sensor signal for non-inverting configuration; same impedance as 1IN− |
| 4 | Negative Supply Rail (VCC−) | Common return path for both amplifiers; must be connected to system ground or negative rail |
| 5 | Non-Inverting Input of Amplifier 2 (2IN+) | Independent input for second op-amp; electrically identical to 1IN+ with no crosstalk below −120 dB |
| 6 | Inverting Input of Amplifier 2 (2IN−) | Independent input for second op-amp; matches 1IN− characteristics and layout sensitivity |
| 7 | Output of Amplifier 2 (2OUT) | Second independent output; shares same drive strength and thermal limits as 1OUT |
| 8 | Positive Supply Rail (VCC+) | Common positive supply for both amplifiers; requires local decoupling near pin for stability |
Key Features
| Feature | Design Value |
|---|---|
| No external frequency compensation required | Internally compensated design ensures stability at unity gain, eliminating need for external capacitor and reducing BOM count |
| Short-circuit protection | Output current limited to ±25 mA with unlimited duration, preventing thermal runaway during overload or miswiring |
| Wide common-mode input voltage range | ±12 V operation allows direct connection to transducers or DAC outputs without level-shifting circuitry |
| No latch-up behavior | Bipolar process prevents destructive parasitic SCR activation, ensuring reliable operation under overvoltage transients |
| Interchangeable with legacy parts | Pin-compatible and functionally aligned with Motorola MC1558/MC1458 and Signetics S5558/N5558 for drop-in replacement |
Applications
| Instrumentation Signal Conditioning | Industrial Sensor Interface |
|---|---|
Use Scenario: Amplifying low-level thermocouple or strain gauge outputs in data acquisition modules. IC Role / Device Role / Timing Role: Dual-opamp configured as precision instrumentation amplifier front-end with matched gain paths. Use Value: 6 mV max input offset and ±12 V common-mode range enable accurate DC-coupled measurement without calibration drift. | Use Scenario: Converting 4–20 mA current loop signals to voltage for PLC analog inputs. IC Role / Device Role / Timing Role: First-stage transimpedance amplifier followed by buffer and level-shifter using both halves. Use Value: Unlimited short-circuit tolerance protects against loop wiring faults while maintaining signal integrity across 0–70°C. |
| Voltage Follower Circuits | Analog Multiplexer Driver |
Use Scenario: Isolating high-impedance sensor outputs from downstream ADC sampling capacitors. IC Role / Device Role / Timing Role: Unity-gain buffer per channel to prevent loading and maintain signal fidelity. Use Value: No latch-up and wide common-mode range allow stable operation even when input exceeds supply rails by up to ±3 V. | Use Scenario: Driving multiple analog multiplexer channels with minimal crosstalk in test equipment. IC Role / Device Role / Timing Role: Dual-output driver providing isolated signal paths to adjacent mux inputs. Use Value: −120 dB crosstalk attenuation ensures channel-to-channel isolation meets 12-bit+ resolution requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM358DR | Single-supply rated (0 to 32 V), lower input offset (7 mV typ), rail-to-rail output not supported | Better suited for battery-powered systems requiring 3.3 V or 5 V operation; lacks bipolar symmetry | Select LM358DR when designing for single-rail supplies and cost-sensitive consumer applications |
| TL082CDR | JFET input (50 pA bias current), higher slew rate (13 V/μs), wider bandwidth (3 MHz), no short-circuit protection | Preferred for high-frequency AC coupling or low-noise audio preamps where input current matters more than fault tolerance | Choose TL082CDR when low input bias and speed outweigh need for short-circuit resilience |
Compared with LM358DR and TL082CDR, the MC1458D offers superior bipolar input stage symmetry, guaranteed short-circuit survivability, and proven compatibility with legacy μA741-based designs-making it the preferred choice for industrial analog subsystems requiring long-term reliability and backward interoperability.
Availability
MC1458D is available at Aetrix Electronics and suitable for industrial sensor interfaces, analog signal conditioning, voltage follower circuits, and legacy equipment repair requiring stable component supply and long-lifecycle support.
Supply support for MC1458D 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 U.S.-based semiconductor company founded in 1930, specializing in analog and embedded processing technologies with broad manufacturing scale and global distribution infrastructure.
The MC1458D belongs to TI's legacy general-purpose op-amp product line, designed specifically for cost-effective, robust analog signal processing in commercial and industrial environments where reliability and interchangeability with μA741-family circuits are critical.
FAQ
What is the maximum supply voltage rating for the MC1458D?
The MC1458D supports a maximum supply voltage of ±15 V across VCC+ and VCC− terminals. Exceeding this limit risks permanent damage, as absolute maximum ratings specify ±18 V for VCC+ and −18 V for VCC− only under transient conditions-not continuous operation. Designers must ensure that the total differential supply remains within ±15 V for guaranteed parametric performance and long-term reliability of the MC1458D.
Does the MC1458D include internal offset null capability?
No, the MC1458D does not provide internal offset null pins or circuitry. Unlike some precision op-amps, it omits dedicated null adjustment terminals, making external trimming necessary if sub-millivolt DC accuracy is required. This design choice reflects its positioning as a general-purpose device optimized for simplicity and cost rather than ultra-low-offset performance-consistent with its functional similarity to the μA741, which also lacks offset null features in standard variants like the MC1458D.
Can the MC1458D operate with a single supply voltage?
The MC1458D is specified for dual-supply operation (±5 V to ±15 V) and is not characterized for true single-supply use. While it may function with a split-rail derived from a single source (e.g., virtual ground), its input common-mode range extends only to ±12 V and output swing is asymmetric near rails. For dedicated single-supply applications, TI recommends alternatives such as the LM358DR. The MC1458D's design assumes symmetrical bipolar supplies to meet all published specifications reliably.
What is the thermal resistance (θJA) of the MC1458D in SOIC-8 package?
The MC1458D in SOIC-8 (D) package has a junction-to-ambient thermal resistance (θJA) of 97°C/W under standard JEDEC test conditions. This value assumes a 1-inch² copper pad with 2 oz copper and no additional heatsinking. At maximum ambient temperature (70°C) and full power dissipation (170 mW), junction temperature reaches approximately 86°C-well below the 150°C absolute maximum, confirming safe operation without forced cooling when used within recommended conditions for the MC1458D.
Is the MC1458D RoHS compliant?
Yes, the MC1458D is RoHS compliant, as confirmed by Texas Instruments' packaging documentation. The active orderable variant MC1458DRG4 carries "Yes" in the RoHS column of TI's official packaging addendum, indicating lead-free terminations with NiPdAu (nickel-palladium-gold) finish and compliance with Directive 2011/65/EU. This applies to all currently shipped MC1458D units from TI's production lines, ensuring environmental compliance for new designs and legacy replacements alike.
MC1458D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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:
- 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:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MC1458D FAQ
1.How can I place an order for MC1458D through Aetrix?
Please submit a Request for Quotation (RFQ) for MC1458D 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 MC1458D reliable?
The price and inventory of MC1458D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC1458D is usually 5 days.
3.What payment methods are accepted for MC1458D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC1458D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC1458D?
MC1458D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC1458D 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 MC1458D?
For technical support, including MC1458D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC1458D requirements.
6.How does Aetrix verify that MC1458D is sourced from the original manufacturer or authorized distributors?
All MC1458D 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 MC1458D meets industry standards.
7.What is the process for return or replacement of MC1458D?
All MC1458D units undergo pre-shipment inspection (PSI). If there is an issue with MC1458D, 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 MC1458D part is unused and in its original packaging.
Return procedure for MC1458D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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