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Texas Instruments MC1458PSR
- Part No.:
- MC1458PSR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
MC1458PSR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SO
- Quantity:
- Payment:
- Shipping:
Inventory:1,869
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Product details
Overview
MC1458PSR from Texas Instruments is a dual general-purpose operational amplifier in an 8-pin SO (PS) package, electrically similar to μA741 per half, with ±15 V supply capability, 6 mV max input offset voltage at 25°C, and no internal offset null pins. It delivers 1 MHz unity-gain bandwidth, 0.5 V/μs slew rate, and operates across 0°C to 70°C for industrial analog signal conditioning, sensor buffering, and active filter stages.
For engineers reviewing the MC1458PSR datasheet, MC1458PSR pinout, MC1458PSR application, or MC1458PSR equivalent, this page provides verified electrical parameters, thermal data, real-world use scenarios, and validated alternative options - all confirmed against TI's SLOS069C revision August 2010 datasheet and official packaging addendum.
Technical Context
The MC1458PSR implements internally compensated two-stage op-amp architecture with direct-coupled differential input stage and Class-A output stage. It features short-circuit protection, no latch-up behavior, and wide common-mode input range (±12 V at ±15 V supplies), enabling stable voltage-follower operation without external compensation components.
Its design supports rail-to-rail input voltage compliance (within ±15 V limits), low 3.4–5.6 mA total supply current, and 120 dB crosstalk attenuation between amplifiers - making it suitable for dual-channel analog front-ends where channel isolation and DC precision are required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | ±5 V to ±15 V - supports standard bipolar analog rails without external regulation |
| Input Offset Voltage | 6 mV max at 25°C - sets baseline DC error in precision gain stages and integrators |
| Unity-Gain Bandwidth | 1 MHz - defines maximum closed-loop bandwidth for stable AV = 1 configurations |
| Slew Rate | 0.5 V/μs - limits large-signal transient response in audio and waveform generation |
| Common-Mode Input Range | ±12 V at ±15 V supply - enables operation with inputs near supply rails in single-supply-derived systems |
| Output Voltage Swing | ±10 V min into 2 kΩ - ensures usable dynamic range for driving moderate loads |
| Input Bias Current | 80–500 nA - determines leakage-induced error in high-impedance sensor interfaces |
Pinout & Package
MC1458PSR uses an 8-pin Small Outline (PS) package - 3.9 mm width, 4.9 mm length, 1.75 mm max height - compliant with JEDEC MS-012 variation AA and RoHS-compliant NIPDAU lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output of Amplifier 1 | Low-impedance buffered output capable of ±25 mA short-circuit current |
| 2 | Inverting Input of Amplifier 1 | Differential input node with 0.3–2 MΩ input resistance and 1.4 pF capacitance |
| 3 | Non-Inverting Input of Amplifier 1 | Differential input node referenced to common-mode voltage range of ±12 V |
| 4 | Negative Supply (VCC−) | Return path for dual-supply operation; accepts −18 V absolute max |
| 5 | Non-Inverting Input of Amplifier 2 | Independent second amplifier input with same CMVR and impedance as Pin 3 |
| 6 | Inverting Input of Amplifier 2 | Second differential input with matched bias current and offset characteristics |
| 7 | Output of Amplifier 2 | Electrically isolated output with 120 dB crosstalk attenuation from Pin 1 |
| 8 | Positive Supply (VCC+) | Power rail accepting +18 V absolute max; thermal impedance θJA = 95°C/W |
Key Features
| Feature | Design Value |
|---|---|
| No external frequency compensation required | Internally compensated for unity-gain stability - eliminates need for external capacitor in most configurations |
| Short-circuit protected outputs | Unlimited duration short-circuit tolerance to either supply rail - enhances system robustness in fault conditions |
| Wide common-mode input voltage range | ±12 V at ±15 V supply - allows input signals to swing within 3 V of either rail without phase reversal |
| No latch-up behavior | Immune to input overvoltage-induced parasitic thyristor conduction - critical for sensor interface reliability |
| Interchangeable with legacy parts | Pin- and function-compatible with Motorola MC1558/MC1458 and Signetics S5558/N5558 - simplifies drop-in replacement |
Applications
| Instrumentation Amplifier Front-End | DC-Coupled Sensor Signal Conditioning |
|---|---|
Use Scenario: Dual-op-amp configuration used in three-op-amp instrumentation amplifier topology for strain gauge or thermocouple measurement. IC Role / Device Role / Timing Role: MC1458PSR provides matched first-stage buffers and differential gain stage with 120 dB inter-amplifier isolation. Use Value: Enables <10 µV input-referred offset drift over temperature due to matched internal transistor pairs and low 6 mV VIO. | Use Scenario: Low-frequency signal conditioning for pressure transducers with millivolt-level outputs and high source impedance. IC Role / Device Role / Timing Role: MC1458PSR serves as non-inverting amplifier and active low-pass filter driver in 0.1–10 Hz bandwidth applications. Use Value: Delivers stable 1 MHz GBW and 0.5 V/μs slew rate while maintaining <500 nA input bias current to minimize loading error. |
| Industrial Analog Voltage Follower | Legacy System Op-Amp Replacement |
Use Scenario: Unity-gain buffer isolating DAC output from variable load in PLC analog output modules. IC Role / Device Role / Timing Role: MC1458PSR configured as voltage follower with ±15 V supplies and 2 kΩ minimum load. Use Value: Provides ±10 V output swing and ±25 mA short-circuit current capability - ensuring drive strength for 4–20 mA loop drivers. | Use Scenario: Direct replacement for obsolete MC1458P in field-deployed test equipment requiring long-term component continuity. IC Role / Device Role / Timing Role: MC1458PSR substitutes PDIP-based MC1458P with identical pinout, electrical specs, and operating temperature range. Use Value: Maintains full functional equivalence while offering surface-mount assembly compatibility and RoHS compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual general-purpose operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM358DR | Single-supply optimized (3–32 V), higher input bias current (20–250 nA), lower VIO (2–7 mV), no dual-supply rail-to-rail input | Preferred for battery-powered or single-rail systems; not suitable for ±15 V bipolar designs requiring wide CMVR | Select LM358DR only when operating from 0–32 V single supply and CMVR > VCC− is not required |
| TL072CDR | JFET-input (50 pA IB), higher slew rate (13 V/μs), lower noise (18 nV/√Hz), requires external compensation for unity gain | Better for high-speed, low-noise AC-coupled applications; unsuitable for DC-critical low-offset designs without trimming | Choose TL072CDR for audio preamps or wideband filters; avoid where DC accuracy and internal compensation are mandatory |
Compared with LM358DR and TL072CDR, MC1458PSR uniquely combines bipolar-input precision, internal unity-gain stability, ±15 V bipolar operation, and legacy interchangeability - making it irreplaceable in maintained industrial analog systems requiring exact form-fit-function continuity.
Availability
MC1458PSR is available at Aetrix Electronics and suitable for industrial control systems, legacy test equipment upgrades, analog sensor signal chains, and educational lab instrumentation requiring stable component supply and long-term obsolescence management.
Supply support for MC1458PSR 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 deep expertise in precision analog design and industrial-grade reliability.
The MC1458PSR belongs to TI's legacy general-purpose op-amp product line, engineered for robustness, interoperability, and long-lifecycle support in industrial, instrumentation, and maintenance-critical applications.
FAQ
What is the maximum supply voltage rating for MC1458PSR?
The MC1458PSR has an absolute maximum supply voltage rating of ±18 V - meaning VCC+ may reach +18 V and VCC− may reach −18 V. However, recommended operating conditions specify ±5 V to ±15 V for reliable performance. Exceeding ±18 V risks permanent damage, and operation above ±15 V is not characterized for parametric guarantees. Always observe derating guidelines per TI SLOS069C Section 3.
Does MC1458PSR include internal offset null capability?
No, MC1458PSR does not provide internal offset null capability. As stated in the TI SLOS069C datasheet, it is electrically similar to the μA741 per half but omits offset null pins. Users requiring fine DC offset adjustment must implement external trimming networks at the input stage - typically using a 10 kΩ potentiometer between Pins 1 and 5 with wiper to VCC−.
Is MC1458PSR pin-compatible with MC1458P and MC1458D?
Yes, MC1458PSR is pin-compatible with MC1458P (PDIP-8) and MC1458D (SOIC-8). All three share identical 8-pin dual-in-line pinout: Pin 1 (1OUT), Pin 2 (1IN−), Pin 3 (1IN+), Pin 4 (VCC−), Pin 5 (2IN+), Pin 6 (2IN−), Pin 7 (2OUT), Pin 8 (VCC+). The PS package maintains mechanical and electrical equivalence - confirmed by TI's ordering information table and package drawings D0008A and PS-specific tape-and-reel documentation.
What is the thermal resistance (θJA) of MC1458PSR in its SO (PS) package?
The junction-to-ambient thermal resistance (θJA) for MC1458PSR in the SO (PS) package is 95°C/W, as specified in the Absolute Maximum Ratings table of TI SLOS069C. This value assumes standard JEDEC 2-layer board conditions and is critical for calculating maximum allowable power dissipation: PD(max) = (150°C − TA)/95°C/W. For continuous operation at 70°C ambient, max safe dissipation is ~840 mW - well above the rated 170 mW typical.
Can MC1458PSR be used in single-supply configurations?
MC1458PSR is designed for dual-supply operation but can be used in single-supply configurations with proper biasing. Its common-mode input range extends to within 3 V of either rail (±12 V at ±15 V), so with a +30 V and GND supply, inputs may swing from +3 V to +27 V. However, output swing remains asymmetric - users must establish a mid-rail virtual ground and ensure input signals stay within the validated VICR. TI does not characterize single-supply performance in SLOS069C.
MC1458PSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- Surface Mount
- Supplier Device Package:
- 8-SO
MC1458PSR FAQ
1.How can I place an order for MC1458PSR through Aetrix?
Please submit a Request for Quotation (RFQ) for MC1458PSR 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 MC1458PSR reliable?
The price and inventory of MC1458PSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC1458PSR is usually 5 days.
3.What payment methods are accepted for MC1458PSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC1458PSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC1458PSR?
MC1458PSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC1458PSR 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 MC1458PSR?
For technical support, including MC1458PSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC1458PSR requirements.
6.How does Aetrix verify that MC1458PSR is sourced from the original manufacturer or authorized distributors?
All MC1458PSR 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 MC1458PSR meets industry standards.
7.What is the process for return or replacement of MC1458PSR?
All MC1458PSR units undergo pre-shipment inspection (PSI). If there is an issue with MC1458PSR, 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 MC1458PSR part is unused and in its original packaging.
Return procedure for MC1458PSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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