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Texas Instruments MC3303DG4
- Part No.:
- MC3303DG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MC3303DG4.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,661
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Product details
Overview
MC3303DG4 from Texas Instruments is a quadruple low-power operational amplifier IC designed for single-supply or dual-supply operation across 3 V to 36 V. It features true differential inputs, Class AB output stage, internal frequency compensation, and low input bias current (–0.2 µA typ at 25°C). It operates from –40°C to 85°C and delivers ±10 V peak output swing into 2 kΩ with 1 MHz unity-gain bandwidth - widely used in industrial sensor signal conditioning and analog front-end circuits.
For engineers reviewing the MC3303DG4 datasheet, MC3303DG4 pinout, MC3303DG4 application, or MC3303DG4 equivalent, key selection considerations include its rail-to-rail input capability (common-mode range includes VCC–), 8 mV max input offset voltage at 25°C, thermal performance in SOIC-14 package (θJA = 86°C/W), and compatibility with legacy µA741-based designs requiring lower quiescent current.
Technical Context
The MC3303DG4 integrates four independent op-amps sharing common supply rails (VCC+ and VCC–) and employs a Class AB output stage enabling output swing from VCC– to VCC+ – 1.5 V under load. Its true differential input stage supports common-mode voltages down to the negative rail, and internal frequency compensation ensures stable unity-gain operation without external components.
Each amplifier provides short-circuit protection and exhibits crosstalk attenuation of 120 dB between channels at 1–20 kHz. The device uses bipolar process technology, delivering 0.6 V/µs slew rate and 9 kHz maximum-output-swing bandwidth at 20 VPP, optimized for DC-coupled precision amplification rather than high-speed AC signal processing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | Single: 3 V to 36 V; Dual: ±2.5 V to ±15 V - enables direct interface with 3.3 V, 5 V, 12 V, and 24 V systems without level-shifting. |
| Input Offset Voltage | 8 mV max at 25°C (–40°C to 85°C full range: 12 mV) - determines baseline DC error in precision gain stages and sensor bridges. |
| Input Bias Current | –0.2 µA typ at 25°C (–1 µA max over temperature) - minimizes voltage drop across high-impedance source networks like photodiode or thermistor interfaces. |
| Unity-Gain Bandwidth | 1 MHz - supports stable closed-loop operation up to ~100 kHz for moderate-gain configurations (e.g., G = 10). |
| Output Voltage Swing | 10 V min into 2 kΩ (VCC+ = 14 V, VCC– = 0 V); extends to VCC– - allows full utilization of single-supply rails in transducer amplifiers. |
| Common-Mode Input Range | VCC– to VCC+ – 2 V - permits direct sensing of signals referenced to ground in single-supply configurations. |
| Quiescent Supply Current | 2.8 mA typ per quad (7 mA max) - consumes less than half the current of µA741, critical for battery-powered instrumentation. |
Pinout & Package
MC3303DG4 is housed in a 14-pin SOIC (D) package, 3.90 mm wide, 8.65 mm long, 1.75 mm max height, with 1.27 mm lead pitch and RoHS-compliant NiPdAu lead finish. Moisture sensitivity level is Level-1 (unlimited floor life at ≤30°C/60% RH).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Amplifier 1 Output | Provides buffered, low-impedance output of first op-amp; drives loads ≥2 kΩ without phase reversal. |
| 2 | Amplifier 1 Inverting Input | Inverts input signal relative to non-inverting input; high-impedance node sensitive to PCB leakage and layout parasitics. |
| 3 | Amplifier 1 Non-Inverting Input | Accepts reference or sensor signal; common-mode range includes VCC–, enabling ground-referenced inputs. |
| 4 | VCC– (Negative Supply) | Ground or negative rail connection; all four amplifiers share this terminal; must be low-impedance. |
| 5 | Amplifier 2 Non-Inverting Input | Independent input for second amplifier; electrically isolated from other channels except via shared supplies. |
| 6 | Amplifier 2 Inverting Input | Configurable for inverting gain or comparator hysteresis; matched to Pin 5 for differential pair applications. |
| 7 | Amplifier 2 Output | Second independent output; identical electrical specs to Pin 1; supports parallel output summation if needed. |
| 8 | VCC+ (Positive Supply) | Primary power rail; supplies all four amplifiers; bypass capacitor (0.1 µF) required near this pin for stability. |
| 9 | Amplifier 3 Output | Third channel output; usable for multi-stage filtering (e.g., active low-pass + buffer) without external ICs. |
| 10 | Amplifier 3 Inverting Input | Supports feedback network placement adjacent to Pin 9; trace length matching recommended for noise immunity. |
| 11 | Amplifier 3 Non-Inverting Input | Enables three-channel simultaneous signal conditioning (e.g., three-phase motor current sensing). |
| 12 | Amplifier 4 Non-Inverting Input | Fourth independent input; suitable for reference voltage buffering or auxiliary monitoring functions. |
| 13 | Amplifier 4 Inverting Input | Allows configuration as summing junction or active filter node; shares bias circuitry with other inputs. |
| 14 | Amplifier 4 Output | Final output channel; completes quad functionality; pin-compatible with MC3403D for design reuse. |
Key Features
| Feature | Design Value |
|---|---|
| Low Input Bias Current | –0.2 µA typical enables accurate amplification of microamp-level sensor currents (e.g., pH electrodes, photodiodes). |
| Internal Frequency Compensation | Guarantees stable unity-gain operation without external capacitors - reduces BOM count and layout complexity. |
| Class AB Output Stage | Delivers low crossover distortion (<1%) and symmetrical sourcing/sinking capability up to ±10 mA into 2 kΩ. |
| Wide Common-Mode Input Range | Extends to VCC–, allowing direct connection of grounded sensors (e.g., strain gauges, RTDs) in single-supply systems. |
| Short-Circuit Protection | Prevents latch-up or permanent damage during accidental output shorts - enhances field reliability in industrial environments. |
Applications
| Industrial Sensor Signal Conditioning | DC Motor Current Monitoring |
|---|---|
|
Use Scenario: Amplifying low-level mV outputs from load cells, pressure transducers, or thermocouples in PLC analog input modules. IC Role / Device Role / Timing Role: Quad op-amp performs simultaneous signal conditioning: one channel for excitation buffering, two for differential gain/offset correction, one for reference voltage regulation. Use Value: 8 mV max input offset and 120 dB crosstalk enable sub-0.1% measurement accuracy across multiple channels without calibration drift. |
Use Scenario: Measuring bidirectional current through H-bridge motor drivers using shunt resistors in factory automation equipment. IC Role / Device Role / Timing Role: Configured as current-sense amplifier with gain of 50 V/V; fourth amplifier buffers reference for ADC input. Use Value: Rail-to-rail input capability allows direct sensing at shunt resistor low-side (ground-referenced), eliminating level-shifters and reducing component count. |
| Legacy µA741 Replacement | Multi-Stage Analog Filters |
|
Use Scenario: Upgrading aging test equipment or medical devices originally designed with µA741 quad op-amps. IC Role / Device Role / Timing Role: Drop-in replacement for LM324/MC3403 footprints; same pinout and supply compatibility but halved quiescent current. Use Value: 2.8 mA total supply current (vs. 5.5 mA for µA741 quad) extends battery life in portable diagnostics tools without redesigning PCB layout. |
Use Scenario: Implementing 4-pole active low-pass filters for anti-aliasing before SAR ADCs in data acquisition systems. IC Role / Device Role / Timing Role: Each amplifier serves one filter stage (Sallen-Key topology); shared VCC+/VCC– simplifies power routing. Use Value: 1 MHz unity-gain bandwidth supports cutoff frequencies up to 100 kHz with <1 dB passband ripple, meeting EN 61000-4-3 immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quadruple low-power operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC3403DR | Rated for 0°C to 70°C only; 10 mV max input offset voltage (vs. 8 mV for MC3303DG4); otherwise identical pinout, specs, and SOIC-14 packaging. | Suitable for commercial-grade consumer electronics but not extended-temperature industrial control panels. | Select MC3403DR only when ambient operating temperature remains within 0–70°C and higher input offset is acceptable. |
| LM324DT | Wider supply range (3–32 V), higher input offset (7 mV typ), no guaranteed 120 dB crosstalk; same SOIC-14 footprint and pinout. | Valid for cost-sensitive general-purpose amplification where channel isolation is non-critical (e.g., LED dimming feedback). | Choose LM324DT for price-driven designs where MC3303DG4's tighter offset and superior crosstalk are unnecessary. |
Compared with MC3403DR and LM324DT, the MC3303DG4 offers the widest industrial temperature range (–40°C to 85°C), lowest guaranteed input offset voltage (8 mV), and highest inter-channel isolation (120 dB), making it optimal for precision analog signal chains in harsh environments.
Availability
MC3303DG4 is available at Aetrix Electronics and suitable for industrial sensor interfaces, motor control feedback loops, and legacy analog system upgrades requiring stable component supply and long-term manufacturability.
Supply support for MC3303DG4 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 specializing in analog, embedded processing, and connectivity technologies, with decades of experience in precision op-amp design and manufacturing.
The MC3303DG4 belongs to TI's legacy precision op-amp product line, engineered specifically for industrial and automotive applications demanding extended temperature operation, low power, and robust ESD tolerance in SOIC packaging.
FAQ
What is the maximum operating temperature range for the MC3303DG4?
The MC3303DG4 is characterized for continuous operation from –40°C to +85°C. This extended temperature range is confirmed in the official Texas Instruments datasheet SLOS101C and distinguishes it from the MC3403 series, which is rated only from 0°C to 70°C. Thermal derating is not required within this range when mounted on standard FR-4 PCBs with adequate copper pour.
Does the MC3303DG4 support single-supply operation with rail-to-rail input?
Yes, the MC3303DG4 supports true single-supply operation from 3 V to 36 V, and its common-mode input voltage range includes the negative supply rail (VCC–). While it does not offer rail-to-rail output swing, it delivers output down to VCC– and up to VCC+ – 1.5 V, making it suitable for ground-referenced sensor interfaces without level-shifting circuitry.
Is the MC3303DG4 pin-compatible with the MC3403 series?
Yes, the MC3303DG4 is fully pin-compatible with MC3403D, MC3403DR, and MC3403N variants in the same package types (SOIC-14, PDIP-14, TSSOP-14). All share identical pin assignments, supply connections, and amplifier channel ordering - enabling direct substitution in existing layouts when extended temperature range or lower input offset is required.
What is the typical quiescent supply current for the MC3303DG4?
The typical total supply current for the MC3303DG4 is 2.8 mA at 25°C with no load, and it remains below 7 mA across the full –40°C to +85°C operating range. This represents less than half the quiescent current of a quad µA741, significantly reducing thermal load and power budget in multi-channel analog systems.
Can the MC3303DG4 drive a 2 kΩ load while maintaining specified output swing?
Yes, the MC3303DG4 guarantees a minimum peak output voltage swing of ±10 V into a 2 kΩ load when operated with VCC+ = 14 V and VCC– = 0 V. This specification is verified across temperature and ensures reliable performance in standard industrial transducer interface circuits without requiring external boost stages.
MC3303DG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 0.6V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 200 nA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 2.8mA (x4 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 5 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
MC3303DG4 FAQ
1.How can I place an order for MC3303DG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for MC3303DG4 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 MC3303DG4 reliable?
The price and inventory of MC3303DG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC3303DG4 is usually 5 days.
3.What payment methods are accepted for MC3303DG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC3303DG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC3303DG4?
MC3303DG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC3303DG4 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 MC3303DG4?
For technical support, including MC3303DG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC3303DG4 requirements.
6.How does Aetrix verify that MC3303DG4 is sourced from the original manufacturer or authorized distributors?
All MC3303DG4 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 MC3303DG4 meets industry standards.
7.What is the process for return or replacement of MC3303DG4?
All MC3303DG4 units undergo pre-shipment inspection (PSI). If there is an issue with MC3303DG4, 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 MC3303DG4 part is unused and in its original packaging.
Return procedure for MC3303DG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MC3303DG4 Tags
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LM358DR
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LM2904DR
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LM358ADR
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LM2904DGKR
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LM324DR
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MCP6006T-E/OT
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MCP6006UT-E/OT
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LM324PWR
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