My Inquiry
My Account
STMicroelectronics MC1458DT
- Part No.:
- MC1458DT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MC1458DT.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:18,826
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MC1458DT from STMicroelectronics is a high-performance, monolithic dual operational amplifier in SO8 package, featuring ±22 V supply voltage range, 1 MHz unity-gain bandwidth, 0.2–0.8 V/µs slew rate, and ±12 V input common-mode range. It is used in active filtering, summing amplifiers, and integrator circuits for industrial signal conditioning.
For engineers reviewing the MC1458DT datasheet, MC1458DT pinout, MC1458DT application, or MC1458DT equivalent, key selection criteria include input offset voltage (1–6 mV), output short-circuit current (10–35 mA), common-mode rejection ratio (70–90 dB), and operating temperature range (0 to 70 °C).
Technical Context
The MC1458DT integrates two independent high-gain op-amps on a single silicon die with no external frequency compensation required. Its internal architecture supports rail-to-rail input stage operation up to ±12 V common-mode voltage and delivers stable unity-gain performance with ≥65° phase margin.
It operates over ±22 V supply rails and maintains large-signal voltage gain of 25–200 V/mV across 0–70 °C. Input bias current remains ≤800 nA and output resistance is fixed at 75 Ω, enabling predictable loading behavior in feedback networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | ±22 V - supports wide analog signal swing without rail clipping in bipolar systems |
| Unity-Gain Bandwidth | 1 MHz - enables stable closed-loop operation up to ~100 kHz with moderate gain |
| Slew Rate | 0.2–0.8 V/µs - limits full-power response time to ≥12.5 µs for 10 Vpp output |
| Input Offset Voltage | 1–6 mV - sets DC error floor in precision summing or integrator applications |
| Common-Mode Rejection | 70–90 dB - suppresses power-supply noise and shared interference in differential sensing |
| Output Short-Circuit Current | 10–35 mA - provides inherent protection while driving low-impedance loads or faults |
| Operating Temperature | 0 to 70 °C - qualified for commercial-grade instrumentation and control modules |
Pinout & Package
MC1458DT is housed in an 8-pin SOIC (SO8) package with standard 1.27 mm pitch, 5.0 mm × 6.2 mm body, and ECOPACK® environmental compliance. Pin 1 is marked by a notch or dot; device orientation follows JEDEC MS-012.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting input (Amplifier A) | Accepts negative feedback or signal inversion node for first op-amp |
| 2 | Non-inverting input (Amplifier A) | Reference or positive signal input for first op-amp; CM range ±12 V |
| 3 | Output (Amplifier A) | Low-impedance buffered output capable of ±14 V swing into 10 kΩ |
| 4 | V− (Negative Supply) | Connects to −VCC rail; supports symmetric or asymmetric bipolar supplies |
| 5 | Non-inverting input (Amplifier B) | Independent reference input for second op-amp; same CM specs as Pin 2 |
| 6 | Inverting input (Amplifier B) | Feedback or signal inversion node for second op-amp |
| 7 | Output (Amplifier B) | Second independent output with identical drive capability and voltage swing |
| 8 | V+ (Positive Supply) | Connects to +VCC rail; completes dual-supply path for both amplifiers |
Key Features
| Feature | Design Value |
|---|---|
| No external frequency compensation required | Enables stable unity-gain configuration without added capacitors or resistors |
| Large input voltage range (±15 V) | Allows direct interfacing with ±10 V sensor outputs or DACs without attenuation |
| Short-circuit protected outputs | Prevents latch-up or thermal damage during accidental load shorts or PCB faults |
| No latch-up under normal operation | Ensures robustness against transient overvoltage or reverse-biased inputs |
| High open-loop gain (25–200 V/mV) | Supports precise closed-loop gain accuracy even with modest feedback resistor ratios |
Applications
| Active Filtering | Summing Amplifier |
|---|---|
Use Scenario: Second-order low-pass filter for anti-aliasing before ADC sampling in data acquisition systems. IC Role / Device Role / Timing Role: Dual op-amp implements Sallen-Key topology with one section per amplifier; no external compensation needed. Use Value: Achieves <1% passband ripple and −40 dB/decade roll-off using only passive RC components and internal stability. | Use Scenario: Combining four analog sensor signals (e.g., temperature, pressure, humidity, flow) into a single composite voltage. IC Role / Device Role / Timing Role: First amplifier acts as inverting summing node; second buffers and inverts again to restore polarity. Use Value: Maintains input impedance >1 MΩ per channel and total offset error <6 mV across all summed paths. |
| Integrator Circuit | Voltage Follower |
Use Scenario: Analog integrator for ramp generation in function generators or PID controller feedback loops. IC Role / Device Role / Timing Role: Single op-amp configured with capacitor in feedback and resistor at inverting input; uses internal high gain for low drift. Use Value: Supports integration time constants up to 100 ms with <0.1%/s drift due to 1–6 mV Vio and low Iib (≤800 nA). | Use Scenario: Isolating a high-impedance pH probe output from downstream ADC input capacitance in lab equipment. IC Role / Device Role / Timing Role: Unity-gain buffer with 2 MΩ input resistance and 75 Ω output resistance minimizes loading and settling delay. Use Value: Delivers <1 µs settling to 0.1% for 10 V step with <5% overshoot and no external compensation. |
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 rated (3–30 V), lower GBP (1.1 MHz), higher Vio (2–7 mV), no dual-supply symmetry | Preferred for battery-powered or 0–5 V microcontroller interfaces; unsuitable for ±15 V analog front-ends | Select when cost-sensitive single-supply designs dominate and rail-to-rail input not required |
| TL082CDT | JFET-input (Iib = 30 pA), higher GBP (3 MHz), higher SR (13 V/µs), requires external compensation for unity gain | Better for high-impedance transducer buffering and wideband AC coupling; less tolerant of DC-coupled integrators | Choose for low-noise, high-speed AC signal paths where input bias current must be <100 pA |
Compared with LM358DT and TL082CDT, MC1458DT offers balanced performance for dual-supply analog signal processing: superior common-mode range (±12 V) and guaranteed stability without compensation, making it optimal for industrial integrators and active filters where supply symmetry and DC precision matter.
Availability
MC1458DT is available at Aetrix Electronics and suitable for active filtering, summing amplifiers, and integrator circuits requiring stable component supply in commercial-temperature instrumentation and test equipment.
Supply support for MC1458DT 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, designing and manufacturing analog, MCU, power, and sensor solutions for industrial, automotive, and consumer markets.
The MC1458DT belongs to ST's legacy high-performance linear amplifier product line, engineered for reliability and consistency in analog signal conditioning applications across commercial temperature ranges.
FAQ
Is MC1458DT pin-compatible with LM358?
No. MC1458DT uses SO8 pinout with dual op-amp layout (Pins 1–3 and 5–7), while LM358DT places both amplifiers in DIP8/SO8 with different pin mapping: LM358 Pin 1 is Output A, Pin 2 is Inverting A, Pin 3 is Non-inverting A - incompatible with MC1458DT's Pin 1 (Inverting A) and Pin 2 (Non-inverting A). Direct replacement requires PCB redesign.
Does MC1458DT require external compensation capacitors?
No. The MC1458DT is internally compensated for unity-gain stability, as confirmed in its datasheet Section 1 (Schematic diagram) and Section 4 (Electrical characteristics). It achieves ≥65° phase margin without external components, unlike JFET-input op-amps such as TL082 that require external compensation for stable unity-gain operation.
What is the maximum safe output current for continuous operation?
The MC1458DT provides short-circuit protection but has no specified continuous output current limit. Based on its 300 mW total power dissipation rating and ±22 V supply, sustained output current should remain below 10 mA into loads ≥1 kΩ to avoid exceeding thermal limits at 70 °C ambient, per absolute maximum ratings Table 1 and thermal derating curves in ST application notes.
Can MC1458DT operate from a single +15 V supply?
Yes, but with reduced dynamic range. When powered from +15 V and GND, the input common-mode range is limited to 0–+3 V (per Vicm specification), and output swing drops to ~0–+12 V. For full-range operation, dual ±15 V supplies are recommended - the device is optimized for symmetric bipolar supply use as stated in its "High-performance, dual operational amplifier" description and electrical characteristics test conditions.
MC1458DT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- 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:
- 0.8V/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:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MC1458DT FAQ
1.How can I place an order for MC1458DT through Aetrix?
Please submit a Request for Quotation (RFQ) for MC1458DT 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 MC1458DT reliable?
The price and inventory of MC1458DT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC1458DT is usually 5 days.
3.What payment methods are accepted for MC1458DT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC1458DT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC1458DT?
MC1458DT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC1458DT 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 MC1458DT?
For technical support, including MC1458DT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC1458DT requirements.
6.How does Aetrix verify that MC1458DT is sourced from the original manufacturer or authorized distributors?
All MC1458DT 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 MC1458DT meets industry standards.
7.What is the process for return or replacement of MC1458DT?
All MC1458DT units undergo pre-shipment inspection (PSI). If there is an issue with MC1458DT, 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 MC1458DT part is unused and in its original packaging.
Return procedure for MC1458DT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MC1458DT Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
