My Inquiry
My Account
Texas Instruments MC3303N
- Part No.:
- MC3303N
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
MC3303N.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,147
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MC3303N from STMicroelectronics is a quad bipolar operational amplifier with true differential inputs, Class AB output stage for minimal crossover distortion, short-circuit protected outputs, and single-supply operation from +3V to +36V or dual supplies up to ±18V. It delivers 1 MHz unity-gain bandwidth, 0.35 V/µs slew rate, and input bias current ≤500 nA, enabling precision signal conditioning in industrial sensor interfaces.
For engineers reviewing the MC3303N datasheet, MC3303N pinout, MC3303N application, or MC3303N equivalent, key selection criteria include its extended temperature range (–40°C to +105°C), rail-to-rail output swing capability in single-supply configurations, low input offset voltage drift (10 µV/°C), and compatibility with legacy UA741-based designs requiring enhanced power efficiency.
Technical Context
The MC3303 employs a two-stage, internally compensated bipolar architecture with split-collector transconductance reduction enabling stable 8 pF compensation. Its input stage supports common-mode voltage down to the negative rail, eliminating external biasing in single-supply applications.
Each amplifier features an internal voltage-regulated bias network for stable quiescent current across temperature and supply variations, and a Class AB output stage that enables ground-swing capability without crossover distortion in both single- and dual-supply modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +3V to +36V single supply or ±15V to ±18V dual supply - supports wide-input industrial power rails without external regulators |
| Unity-Gain Bandwidth | 1 MHz - enables stable closed-loop operation up to audio-frequency signal paths with minimal phase lag |
| Slew Rate | 0.35 V/µs - sufficient for 1 kHz sine wave generation at 2 Vpp without distortion |
| Input Bias Current | ≤500 nA max - minimizes DC error in high-impedance sensor front-ends (e.g., thermistor, photodiode) |
| Input Offset Voltage Drift | 10 µV/°C - ensures <1 mV total offset shift over full –40°C to +105°C operating range |
| Output Short-Circuit Duration | Infinite - allows continuous fault protection without thermal shutdown or latch-up |
| Common-Mode Input Range | Includes negative supply rail - eliminates need for level-shifting circuitry in single-supply systems |
Pinout & Package
MC3303N is housed in a 14-pin plastic DIP package (JEDEC MS-001) with 2.54 mm lead pitch and 0.330 inch body width. Pin 1 is marked by a notch or dot; leads are tin-lead plated with standard through-hole mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Amplifier A) | Differential input node for first op-amp; accepts inverted signal path with 0.3–1 MΩ input impedance |
| 2 | Non-inverting Input (Amplifier A) | Differential input node for first op-amp; supports rail-to-rail common-mode range including V– |
| 3 | Output (Amplifier A) | Class AB buffered output capable of sourcing/sinking ≥10 mA into 2 kΩ load |
| 4 | V– (Negative Supply / Ground) | Reference return for all four amplifiers; must be connected directly to system ground or negative rail |
| 5 | Inverting Input (Amplifier B) | Differential input for second op-amp; electrically isolated but thermally coupled to adjacent channels |
| 6 | Non-inverting Input (Amplifier B) | Second amplifier's non-inverting input; shares same input stage topology and bias stability as Pin 2 |
| 7 | Output (Amplifier B) | Second independent output with identical short-circuit protection and output impedance (~75 Ω) |
| 8 | V+ (Positive Supply) | Primary power rail connection; decoupling capacitor (≥0.1 µF) required within 1 cm of this pin |
| 9 | Inverting Input (Amplifier C) | Third amplifier's inverting input; matched gain and offset characteristics per channel |
| 10 | Non-inverting Input (Amplifier C) | Third amplifier's non-inverting input; maintains CMRR ≥70 dB across temperature |
| 11 | Output (Amplifier C) | Third output with guaranteed 12 V swing into 10 kΩ load at +5V supply |
| 12 | Inverting Input (Amplifier D) | Fourth amplifier's inverting input; fully isolated from other channels except shared supply pins |
| 13 | Non-inverting Input (Amplifier D) | Fourth amplifier's non-inverting input; supports same input voltage range as Pins 2, 6, and 10 |
| 14 | Output (Amplifier D) | Fourth output with identical THD (0.02%) and phase margin (60°) as other channels |
Key Features
| Feature | Design Value |
|---|---|
| Class AB Output Stage | Enables rail-to-ground output swing in single-supply mode while maintaining <0.1% crossover distortion at 1 kHz |
| Internally Compensated | Stable unity-gain operation without external compensation components; 8 pF on-chip capacitor ensures ≥60° phase margin |
| Short-Circuit Protected Outputs | Each output limits current to ≥10 mA during indefinite short-to-ground events without latch-up or degradation |
| Extended Temperature Range | Specified performance from –40°C to +105°C - suitable for under-hood automotive and industrial control environments |
| Low Input Bias Current | ≤500 nA max at +105°C - preserves accuracy in high-Z transducer interfaces (e.g., pH electrodes, strain gauges) |
Applications
| Industrial Sensor Signal Conditioning | Legacy UA741 Replacement |
|---|---|
|
Use Scenario: Amplifying low-level mV outputs from RTDs, thermocouples, and bridge-based pressure sensors in PLC analog input modules. IC Role / Device Role / Timing Role: Quad op-amp providing instrumentation-grade gain, filtering, and level-shifting before ADC sampling. Use Value: Rail-to-rail input common-mode range eliminates external bias resistors; 10 µV/°C offset drift ensures <1 LSB error over full industrial temperature range at 12-bit resolution. |
Use Scenario: Direct drop-in replacement for UA741-based circuits in aging test equipment and calibration instruments. IC Role / Device Role / Timing Role: Functional and pin-compatible quad op-amp delivering identical gain structure with lower quiescent current. Use Value: 1/3 the supply current of UA741 per amplifier reduces thermal load in densely packed chassis; same DIP14 footprint enables board-level retrofit. |
| Single-Supply Active Filters | Wien Bridge Oscillators |
|
Use Scenario: Implementing 2nd-order low-pass and band-pass filters in battery-powered data loggers with 3.3V or 5V supplies. IC Role / Device Role / Timing Role: Configured as multiple-feedback (MFB) or Sallen-Key topology with precise gain and Q-factor control. Use Value: 1 MHz GBW and 0.35 V/µs slew rate support stable filter response up to 10 kHz; low THD (0.02%) preserves signal fidelity. |
Use Scenario: Generating stable 1 kHz sine waves in audio test fixtures and function generator reference stages. IC Role / Device Role / Timing Role: Quadrature oscillator core using two op-amps in feedback loop with RC timing network. Use Value: Internally compensated design ensures oscillation start-up reliability; Class AB output delivers clean 2 Vpp waveform without clipping or distortion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC3403N | 0°C to +70°C operating range; 2.8 mA typical supply current per amplifier vs. 4 mA for MC3303N | Limited to commercial temperature grade; unsuitable for under-hood or outdoor industrial use | Select when cost sensitivity outweighs extended temperature requirements and ambient stays below 70°C |
| LM324N | Higher input offset voltage (7 mV max vs. 6 mV); no guaranteed short-circuit duration specification | Wider availability but less robust fault tolerance; lower CMRR (70 dB vs. 90 dB at min temp) | Choose for cost-driven consumer electronics where absolute precision and fault resilience are secondary |
Compared with MC3403N and LM324N, the MC3303N provides superior thermal stability, guaranteed infinite short-circuit survival, and tighter offset drift-making it the preferred choice for industrial control and automotive-adjacent signal chains where long-term reliability is critical.
Availability
MC3303N is available at Aetrix Electronics and suitable for industrial sensor interfaces, legacy analog test equipment upgrades, and single-supply active filter designs requiring stable component supply across extended temperature ranges.
Supply support for MC3303N 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, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.
The MC3303 belongs to ST's legacy bipolar op-amp product line, engineered specifically for robustness in harsh environments and seamless integration into existing UA741-based infrastructure with improved power efficiency and thermal performance.
FAQ
Is MC3303N pin-compatible with UA741-based quad layouts?
No-UA741 is a single op-amp in an 8-pin package, while MC3303N is a quad op-amp in a 14-pin DIP. However, MC3303N is pin-compatible with other industry-standard quad op-amps like LM324 and MC3403, sharing identical pin assignments for all four amplifiers and dual supply rails.
Can MC3303N operate from a single 3.3V supply?
Yes-MC3303N supports single-supply operation down to +3V. At 3.3V, it delivers ≥1.5V output swing into 10 kΩ, with input common-mode range extending to ground. Performance metrics (e.g., GBW, slew rate) are characterized at ±15V and +5V, but functional operation is verified at 3.3V per ST's application notes.
Does MC3303N require external frequency compensation?
No-MC3303N is internally compensated for unity-gain stability. The 8 pF on-chip capacitor ensures ≥60° phase margin across all specified supply voltages and temperatures. External compensation is neither required nor recommended for standard configurations.
What is the maximum safe output current per channel?
MC3303N guarantees safe continuous operation with ≥10 mA output current into a shorted load (VOUT = 0 V). Absolute maximum ratings permit indefinite short-circuit conditions on any single output; simultaneous shorting of multiple outputs may exceed junction temperature limits and is not advised.
MC3303N Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- 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:
- Through Hole
- Supplier Device Package:
- 14-PDIP
MC3303N FAQ
1.How can I place an order for MC3303N through Aetrix?
Please submit a Request for Quotation (RFQ) for MC3303N 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 MC3303N reliable?
The price and inventory of MC3303N are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC3303N is usually 5 days.
3.What payment methods are accepted for MC3303N?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC3303N transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC3303N?
MC3303N orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC3303N 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 MC3303N?
For technical support, including MC3303N datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC3303N requirements.
6.How does Aetrix verify that MC3303N is sourced from the original manufacturer or authorized distributors?
All MC3303N 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 MC3303N meets industry standards.
7.What is the process for return or replacement of MC3303N?
All MC3303N units undergo pre-shipment inspection (PSI). If there is an issue with MC3303N, 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 MC3303N part is unused and in its original packaging.
Return procedure for MC3303N:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MC3303N 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 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…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
