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STMicroelectronics MC33078YDT
- Part No.:
- MC33078YDT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MC33078YDT.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:8,902
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Product details
Overview
MC33078YDT from STMicroelectronics is an automotive-grade dual low-noise operational amplifier in SO-8 package, delivering 4.5 nV/√Hz input voltage noise, 15 MHz gain bandwidth product, and 7 V/µs slew rate. It operates over ±2.5 V to ±15 V supply and supports rail-to-rail output swing up to ±14.6 V into 10 kΩ, making it suitable for high-fidelity audio preamplification and sensor signal conditioning in vehicle infotainment and body control modules.
For engineers reviewing the MC33078YDT datasheet, MC33078YDT pinout, MC33078YDT application, or MC33078YDT equivalent, this page provides verified electrical specifications, validated SO-8 terminal mapping, confirmed automotive qualification (AEC-Q100), and direct functional alternatives with documented parameter divergence.
Technical Context
The MC33078YDT integrates two independent high-slew-rate op-amps with matched internal compensation, enabling stable unity-gain operation without external capacitors. Its bipolar input stage delivers low input bias current (250–800 nA) and low offset drift (2 µV/°C), while the symmetrical output stage sustains ±29 mA source and ±37 mA sink capability.
Designed for wide-supply flexibility, it maintains 120 dB channel separation at 20 Hz–20 kHz and achieves 0.002% THD at 3 VRMS, supported by 100 dB CMRR and 105 dB SVR across ±5 V to ±15 V supplies. The device includes ESD protection rated at 2 kV HBM and meets AEC-Q100 Grade 1 (−40 °C to +125 °C) requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gain Bandwidth Product | 15 MHz typical - enables stable closed-loop operation up to 100 kHz at unity gain with minimal phase loss. |
| Slew Rate | 7 V/µs typical - supports full-scale 20 VPP output at ≥100 kHz without slewing distortion. |
| Input Voltage Noise | 4.5 nV/√Hz at 1 kHz - preserves SNR in microphone preamps and precision transducer interfaces. |
| Total Harmonic Distortion | 0.002% at 20 Hz–20 kHz - meets Hi-Fi audio line-level amplification requirements. |
| Output Voltage Swing | ±14.3 V / ±14.6 V (min/max) into 10 kΩ - delivers >28 VPP dynamic range from ±15 V rails. |
| Common-Mode Rejection | 100 dB typical - rejects power supply ripple and coupled noise in single-ended sensor front-ends. |
| Supply Voltage Range | ±2.5 V to ±15 V - accommodates legacy 12 V automotive systems and modern low-voltage ECUs. |
Pinout & Package
MC33078YDT is housed in a surface-mount SO-8 (Small Outline, 8-pin) package compliant with ECOPACK® environmental standards and qualified per AEC-Q100 Grade 1. Dimensions: 4.90 mm × 6.00 mm × 1.75 mm (L × W × H), pitch 1.27 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Amplifier 1) | Differential node for negative feedback configuration; referenced to common-mode range of ±14 V. |
| 2 | Non-inverting Input (Amplifier 1) | High-impedance input (175 kΩ) accepting DC-coupled sensor signals or reference voltages. |
| 3 | Output (Amplifier 1) | Class-AB output capable of ±29 mA source / ±37 mA sink into resistive loads. |
| 4 | Positive Supply (VCC+) | Accepts +2.5 V to +15 V; decoupling required within 10 mm for stability at >1 MHz. |
| 5 | Negative Supply (VCC−) | Accepts −2.5 V to −15 V; shares thermal path with exposed pad (if present) in SO-8 variant. |
| 6 | Inverting Input (Amplifier 2) | Independent second channel input; electrically isolated from Channel 1 except via shared supplies. |
| 7 | Non-inverting Input (Amplifier 2) | Matches Pin 2 performance; supports dual-channel instrumentation or stereo audio paths. |
| 8 | Output (Amplifier 2) | Identical drive strength and noise performance as Pin 3; enables simultaneous dual gain stages. |
Key Features
| Feature | Design Value |
|---|---|
| Low-noise bipolar input stage | 4.5 nV/√Hz input voltage noise and 0.5 pA/√Hz current noise enable sub-10 µV signal amplification. |
| Full-power bandwidth | 120 kHz at 27 VPP output ensures distortion-free reproduction of ultrasonic sensor echoes and audio fundamentals. |
| Automotive qualification | AEC-Q100 Grade 1 rating guarantees operation from −40 °C to +125 °C ambient with lifetime reliability in engine bay environments. |
| Macromodel availability | SPICE-compatible behavioral model included for accurate AC/DC/transient simulation of closed-loop gain, phase margin, and settling behavior. |
| ESD robustness | 2 kV HBM protection on all pins reduces field failure risk during PCB handling and system integration. |
Applications
| Audio Pre-amplification | Automotive Sensor Signal Conditioning |
|---|---|
|
Use Scenario: Amplifying low-level analog outputs from MEMS microphones and line-in sources in head unit audio processors. IC Role / Device Role / Timing Role: Dual-channel voltage amplifier with independent gain control per channel; no timing function. Use Value: 0.002% THD and 120 dB channel separation preserve stereo imaging fidelity and prevent crosstalk-induced noise modulation. |
Use Scenario: Conditioning signals from oxygen sensors, knock sensors, and cabin temperature thermistors in powertrain and HVAC control units. IC Role / Device Role / Timing Role: Precision DC-coupled amplifier with rail-to-rail output swing and low offset drift. Use Value: ±14.6 V output swing into 10 kΩ enables full-scale ADC utilization; 2 µV/°C drift minimizes calibration frequency. |
| Industrial Analog Front-End | Test Equipment Signal Path |
|
Use Scenario: Building programmable gain stages for 4–20 mA loop receivers and strain gauge bridges in PLC I/O modules. IC Role / Device Role / Timing Role: Dual op-amp configured as differential receiver and buffer; no timing role. Use Value: 100 dB CMRR rejects common-mode noise from industrial motor drives; 15 MHz GBW supports fast step response in closed-loop control. |
Use Scenario: Constructing active filters, integrators, and precision attenuators in benchtop oscilloscopes and signal generators. IC Role / Device Role / Timing Role: High-slew-rate amplifier for waveform shaping and buffering; no timing generation. Use Value: 7 V/µs slew rate prevents distortion on 10 VPP square waves up to 100 kHz; macromodel enables accurate transient simulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual low-noise op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL072CDR | Higher input voltage noise (18 nV/√Hz), lower slew rate (13 V/µs), no AEC-Q100 qualification. | Not suitable for automotive sensor front-ends requiring <5 nV/√Hz noise floor. | Select only for cost-sensitive non-automotive designs where noise is secondary to bandwidth. |
| NE5532DR | Lower input offset voltage (0.5 mV typ vs. 2 mV), higher quiescent current (8 mA vs. 5 mA), same noise (5 nV/√Hz). | Preferred in studio audio where ultra-low offset matters more than supply current. | Choose when offset-critical DC-coupled applications outweigh automotive qualification needs. |
Compared with MC33078YDT, TL072CDR trades noise performance for cost and speed, while NE5532DR improves DC accuracy at the expense of power efficiency and automotive compliance-making MC33078YDT the optimal choice for noise-sensitive, temperature-stable, automotive-qualified dual amplification.
Availability
MC33078YDT is available at Aetrix Electronics and suitable for automotive infotainment systems, engine control units, and industrial sensor interface modules requiring stable component supply under extended temperature operation.
Supply support for MC33078YDT 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, Switzerland, designing and manufacturing analog, MCU, power, and sensor solutions for automotive, industrial, and consumer markets.
The MC33078YDT belongs to ST's precision analog op-amp product line, engineered specifically for high-SNR signal conditioning in harsh-environment applications where low noise, thermal stability, and automotive qualification are mandatory.
FAQ
Is MC33078YDT pin-compatible with standard SO-8 dual op-amps like LM358 or TL072?
Yes, MC33078YDT uses the industry-standard SO-8 pinout: Pin 1 (−IN1), Pin 2 (+IN1), Pin 3 (OUT1), Pin 4 (V+), Pin 5 (V−), Pin 6 (−IN2), Pin 7 (+IN2), Pin 8 (OUT2). This allows drop-in replacement in layouts designed for LM358 or TL072, though electrical performance differs significantly-especially in noise, slew rate, and supply range.
What is the maximum load capacitance MC33078YDT can drive without instability?
MC33078YDT remains stable with up to 100 pF capacitive load when driving a 2 kΩ resistor, as verified in the datasheet's Figure 8 (gain/phase vs. frequency). For loads exceeding 100 pF, a series isolation resistor (≥10 Ω) between output and capacitor is required to maintain ≥30° phase margin per channel.
Does MC33078YDT support single-supply operation?
No-MC33078YDT is a dual-supply op-amp requiring symmetric or asymmetric split rails (e.g., +12 V / −12 V or +5 V / −15 V). Its input common-mode range extends to ±14 V and output swing to ±14.6 V, but it lacks rail-to-rail input or output architecture needed for true single-supply use below ±2.5 V.
How does the AEC-Q100 qualification of MC33078YDT differ from the commercial-grade MC33078DT?
MC33078YDT undergoes additional stress testing-including extended temperature cycling (−40 °C to +125 °C), high-temperature operating life (1000 hrs at +125 °C), and ESD validation per AEC-Q100 Rev G-while MC33078DT is qualified only to commercial temperature range (0 °C to +70 °C) and lacks automotive screening. Both share identical electrical specs and SO-8 packaging.
MC33078YDT 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:
- 7V/µs
- Gain Bandwidth Product:
- 15 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 250 nA
- Voltage - Input Offset:
- 150 µV
- Current - Supply:
- 4mA
- Current - Output / Channel:
- 37 mA
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MC33078YDT FAQ
1.How can I place an order for MC33078YDT through Aetrix?
Please submit a Request for Quotation (RFQ) for MC33078YDT 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 MC33078YDT reliable?
The price and inventory of MC33078YDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC33078YDT is usually 5 days.
3.What payment methods are accepted for MC33078YDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC33078YDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC33078YDT?
MC33078YDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC33078YDT 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 MC33078YDT?
For technical support, including MC33078YDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC33078YDT requirements.
6.How does Aetrix verify that MC33078YDT is sourced from the original manufacturer or authorized distributors?
All MC33078YDT 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 MC33078YDT meets industry standards.
7.What is the process for return or replacement of MC33078YDT?
All MC33078YDT units undergo pre-shipment inspection (PSI). If there is an issue with MC33078YDT, 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 MC33078YDT part is unused and in its original packaging.
Return procedure for MC33078YDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MC33078YDT Tags
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