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Texas Instruments MC1458DR
- Part No.:
- MC1458DR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MC1458DR.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:7,671
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Product details
Overview
MC1458DR from Texas Instruments is a dual general-purpose operational amplifier in SOIC-8 package, electrically similar to μA741 per half-channel, 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 MC1458DR datasheet, MC1458DR pinout, MC1458DR application, or MC1458DR equivalent, key selection criteria include its short-circuit protection, wide common-mode input range (±12 V), absence of latch-up, internal frequency compensation, and compatibility with legacy MC1458/MC1558 designs requiring stable dual op-amp performance without external compensation components.
Technical Context
The MC1458DR implements two independent high-input-impedance voltage amplifiers sharing a common SOIC-8 package, each featuring internally compensated dominant-pole architecture enabling stable unity-gain operation without external capacitors. Its differential input stage supports ±30 V differential voltage and ±15 V absolute input voltage limits.
Designed for voltage-follower and closed-loop configurations, it provides 70 dB minimum CMRR, 20 V/mV large-signal voltage gain, and 120 dB crosstalk attenuation between channels-enabling precise dual-channel signal processing where inter-channel isolation and DC accuracy are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | ±5 V to ±15 V - Supports standard dual-rail analog systems including ±12 V and ±15 V industrial power domains. |
| Input Offset Voltage | Max 6 mV at 25°C - Sets baseline DC error in precision amplification; requires no external nulling circuitry. |
| Slew Rate | 0.5 V/μs - Limits full-power bandwidth to ~160 kHz at ±10 V output swing; suitable for audio and control-loop applications. |
| Unity-Gain Bandwidth | 1 MHz - Enables stable closed-loop gain ≥1 with minimal phase margin degradation (65° typical). |
| Common-Mode Input Range | ±12 V - Allows direct interfacing with signals referenced to mid-supply or rail-to-rail sensor outputs. |
| Short-Circuit Protection | Unlimited duration - Permits safe operation during transient overloads or output faults without device damage. |
| Operating Temperature | 0°C to 70°C - Qualified for commercial and industrial ambient environments without derating. |
Pinout & Package
MC1458DR is housed in an 8-pin SOIC (D) package measuring 4.90 mm × 3.91 mm × 1.75 mm (max height), RoHS-compliant with NiPdAu lead finish and MSL Level-1 rating (260°C peak reflow).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output of Amplifier 1 | Provides buffered, low-impedance output signal; capable of ±25 mA short-circuit current. |
| 2 | Inverting Input of Amplifier 1 | Accepts feedback or signal inversion node; high-impedance (0.3–2 MΩ) with 1.4 pF input capacitance. |
| 3 | Non-Inverting Input of Amplifier 1 | Accepts reference or signal source; shares same common-mode and input bias current specs as Pin 2. |
| 4 | Negative Supply (VCC−) | Reference for both amplifiers' internal circuitry; must be connected to system ground or negative rail. |
| 5 | Positive Supply (VCC+) | Reference for both amplifiers' internal circuitry; supports up to +18 V relative to VCC−. |
| 6 | Output of Amplifier 2 | Independent output channel; identical electrical specs to Pin 1 with 120 dB crosstalk isolation. |
| 7 | Inverting Input of Amplifier 2 | Second amplifier's inverting node; electrically matched to Pin 2 for dual-channel symmetry. |
| 8 | Non-Inverting Input of Amplifier 2 | Second amplifier's non-inverting node; matches Pin 3 in offset, bias, and impedance characteristics. |
Key Features
| Feature | Design Value |
|---|---|
| No external frequency compensation required | Internally compensated for unity-gain stability-eliminates need for external capacitor and reduces BOM count. |
| Wide common-mode input voltage range | ±12 V enables direct connection to sensors or DACs operating near supply rails without level-shifting. |
| Short-circuit protected outputs | Withstands indefinite output-to-rail shorts-critical for robustness in motor drive feedback or test equipment interfaces. |
| No latch-up behavior | Ensures reliable recovery after overvoltage transients on inputs or supplies-essential for unattended industrial systems. |
| Interchangeable with legacy MC1558/MC1458 | Pin- and function-compatible with Motorola and Signetics equivalents-supports drop-in replacement in existing designs. |
Applications
| Instrumentation Amplifier Front-End | Voltage Follower Buffer |
|---|---|
Use Scenario: Dual-channel sensor signal conditioning in data acquisition systems with thermocouples or strain gauges. IC Role / Device Role / Timing Role: First-stage differential gain block using one amplifier half; second half provides reference buffer or active filtering. Use Value: 120 dB crosstalk attenuation prevents channel coupling; ±12 V common-mode range accommodates sensor offsets without clipping. | Use Scenario: Isolating high-impedance DAC outputs from load variations in programmable power supply control loops. IC Role / Device Role / Timing Role: Unity-gain buffer per channel to maintain signal integrity and prevent loading effects on precision references. Use Value: No external compensation needed ensures stable buffering at full bandwidth; short-circuit protection guards against accidental output shorts. |
| Active Filter Stage | Analog Signal Multiplexer Driver |
Use Scenario: Second-order low-pass filtering in audio preamplifiers or anti-aliasing stages before ADC sampling. IC Role / Device Role / Timing Role: Dual op-amp implementation of Sallen-Key topology-one half as filter core, other as gain stage or buffer. Use Value: 1 MHz GBW supports cutoff frequencies up to ~100 kHz; matched internal parameters ensure consistent filter response across channels. | Use Scenario: Driving multiplexed analog inputs in multi-channel medical monitoring equipment with variable load capacitance. IC Role / Device Role / Timing Role: Output driver for mux-selected signals, providing low-output-impedance interface to successive gain stages. Use Value: 0.5 V/μs slew rate handles fast settling after channel switching; ±15 V supply headroom supports dynamic range preservation. |
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 |
|---|---|---|---|
| MC1458P | Same electrical specs; PDIP-8 package with 85°C/W θJA vs. SOIC-8's 97°C/W; higher thermal resistance. | Preferred for prototyping or through-hole PCBs; less suitable for high-density surface-mount layouts. | Select MC1458P when manual soldering, breadboarding, or legacy board compatibility is required. |
| LM358DR | Single-supply optimized (3–32 V); lower input offset (7 mV max); no dual-supply symmetry; 0.6 V/μs slew rate. | Better suited for battery-powered or single-rail systems; lacks true dual-supply common-mode range and rail-to-rail input. | Choose LM358DR only if operating from +5 V or +12 V single supply; not interchangeable in ±15 V designs. |
Compared with MC1458P, MC1458DR offers superior board-area efficiency and automated assembly compatibility; compared with LM358DR, it maintains symmetric dual-rail performance essential for legacy instrumentation and industrial control circuits where input common-mode range and supply rejection matter.
Availability
MC1458DR is available at Aetrix Electronics and suitable for industrial instrumentation, analog signal conditioning, and legacy system repair requiring stable component supply with long-term lifecycle support.
Supply support for MC1458DR 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 industrial-grade qualification.
The MC1458DR belongs to TI's legacy general-purpose op-amp product line, engineered for broad compatibility with 1970s-era designs while maintaining modern manufacturing and quality standards for sustained industrial deployment.
FAQ
What is the maximum supply voltage rating for MC1458DR?
The MC1458DR supports ±15 V supply voltage under recommended operating conditions, with absolute maximum ratings of +18 V on VCC+ and −18 V on VCC−. Exceeding these limits risks permanent damage. Operation at ±15 V ensures full specification compliance for parameters including output swing, CMRR, and slew rate-making MC1458DR suitable for standard dual-rail analog systems.
Does MC1458DR require external frequency compensation components?
No, MC1458DR does not require external frequency compensation components. It features internal dominant-pole compensation optimized for unity-gain stability, enabling direct use in voltage-follower, inverting, and non-inverting configurations without added capacitors. This design eliminates tuning complexity and improves layout reliability-confirmed by 65° phase margin and 11 dB gain margin at unity gain per the official datasheet.
Is MC1458DR pin-compatible with the original Motorola MC1458?
Yes, MC1458DR is pin-compatible with the original Motorola MC1458. Both devices use identical SOIC-8 (or PDIP-8) pinouts: Pin 1 (1OUT), Pin 2 (1IN−), Pin 3 (1IN+), Pin 4 (VCC−), Pin 5 (VCC+), Pin 6 (2OUT), Pin 7 (2IN−), Pin 8 (2IN+). TI explicitly states interchangeability in the datasheet, confirming functional and mechanical equivalence for drop-in replacement in legacy designs.
What is the input offset voltage specification for MC1458DR?
The input offset voltage for MC1458DR is specified as a maximum of 6 mV at 25°C, with a full-range limit of 7.5 mV across 0°C to 70°C. This parameter reflects inherent DC mismatch between the two input transistors and directly impacts accuracy in precision DC-coupled amplifiers. Unlike μA741, MC1458DR omits offset null pins-so system-level calibration or trimming must occur externally if sub-millivolt accuracy is required.
Can MC1458DR operate with a single supply voltage?
MC1458DR is designed for dual-supply operation and is not characterized for reliable single-supply use. Its input common-mode range extends only to ±12 V (not to the negative rail), and output swing is asymmetric near ground. While limited functionality may appear with single-rail biasing, TI specifies operation only within ±5 V to ±15 V dual supplies. For true single-supply applications, consider purpose-built alternatives like LM358DR instead of MC1458DR.
MC1458DR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm 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-SOIC
MC1458DR FAQ
1.How can I place an order for MC1458DR through Aetrix?
Please submit a Request for Quotation (RFQ) for MC1458DR 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 MC1458DR reliable?
The price and inventory of MC1458DR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC1458DR is usually 5 days.
3.What payment methods are accepted for MC1458DR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC1458DR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC1458DR?
MC1458DR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC1458DR 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 MC1458DR?
For technical support, including MC1458DR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC1458DR requirements.
6.How does Aetrix verify that MC1458DR is sourced from the original manufacturer or authorized distributors?
All MC1458DR 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 MC1458DR meets industry standards.
7.What is the process for return or replacement of MC1458DR?
All MC1458DR units undergo pre-shipment inspection (PSI). If there is an issue with MC1458DR, 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 MC1458DR part is unused and in its original packaging.
Return procedure for MC1458DR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MC1458DR Tags
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