My Inquiry
My Account
STMicroelectronics MC3303DT
- Part No.:
- MC3303DT
- Manufacturer:
- STMicroelectronics
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
MC3303DT.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:4,635
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MC3303DT from STMicroelectronics is a quad bipolar operational amplifier with true differential inputs, rated for industrial temperature range (−40°C to +105°C), 3V–36V single-supply or ±15V–±18V dual-supply operation, 500 nA max input bias current, and internal compensation. It delivers low crossover distortion via Class AB output stage and supports precision signal conditioning in sensor interfaces and analog front-ends.
For engineers reviewing the MC3303DT datasheet, MC3303DT pinout, MC3303DT application, or MC3303DT equivalent, key selection criteria include its rail-to-rail output swing capability in single-supply mode, −40°C to +105°C operating range, 1 MHz unity-gain bandwidth, 0.35 V/µs slew rate, and 70 dB minimum CMRR - all critical for stable DC-coupled amplification in embedded control systems.
Technical Context
The MC3303 employs a two-stage bipolar architecture with split-collector transconductance reduction enabling 8 pF internal compensation and minimizing die area. Its first stage supports common-mode input down to the negative rail - eliminating external biasing in single-supply configurations.
The second stage uses a current-source-loaded amplifier, while the Class AB output stage ensures zero-crossing distortion in dual-supply use and ground-swing capability in single-supply mode. All four amplifiers share an internal low-drift voltage regulator for consistent biasing and improved PSRR.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | +3V to +36V (single) or ±15V to ±18V (dual) - enables direct interface with 3.3V, 5V, 12V, and 24V industrial rails |
| Input Bias Current | ≤500 nA max - minimizes offset error in high-impedance sensor signal paths (e.g., thermocouples, photodiodes) |
| Unity-Gain Bandwidth | 1 MHz - supports stable closed-loop gain up to ~10× at 100 kHz without phase margin loss |
| Slew Rate | 0.35 V/µs - limits full-scale step response time to ≥28.6 µs for 10 V output swing |
| CMRR | ≥70 dB - rejects common-mode noise from shared ground or supply coupling in multi-channel systems |
| Output Short-Circuit Protection | Indefinite short to ground per channel - allows safe operation in fault-prone industrial I/O stages |
| Operating Temperature | −40°C to +105°C - qualified for under-hood automotive, motor drive feedback, and factory automation environments |
Pinout & Package
MC3303DT is supplied in a 14-pin Small Outline (SO-14) plastic micropackage, RoHS-compliant, tape-and-reel format optimized for automated SMT assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Inverting Input (Amp 1) | Differential input node for first op-amp; accepts inverted signal path with 0.3 MΩ input impedance |
| 2 | Non-inverting Input (Amp 1) | Differential input node for first op-amp; common-mode range extends to V− (ground in single supply) |
| 3 | Output (Amp 1) | Class AB buffered output capable of swinging within 1.7 V of V+ and to ground in single supply |
| 4 | V− (Ground / Negative Supply) | Power reference for all four amplifiers; serves as return path for bias and load currents |
| 5 | Inverting Input (Amp 2) | Second amplifier's inverting input; electrically isolated but thermally coupled to other channels |
| 6 | Non-inverting Input (Amp 2) | Second amplifier's non-inverting input; shares same input stage topology and offset drift behavior |
| 7 | Output (Amp 2) | Independent output stage with identical short-circuit protection and voltage swing limits as Pin 3 |
| 8 | V+ (Positive Supply) | Main power rail for all amplifiers; decoupling capacitor required within 1 cm for stability |
| 9 | Inverting Input (Amp 3) | Third amplifier's inverting input; matched input characteristics enable multi-stage filter designs |
| 10 | Non-inverting Input (Amp 3) | Third amplifier's non-inverting input; supports high-Z buffer or differential gain configurations |
| 11 | Output (Amp 3) | Third output; usable for active filtering or signal summing without crosstalk exceeding −120 dB |
| 12 | Inverting Input (Amp 4) | Fourth amplifier's inverting input; pin-compatible with legacy UA741-based layouts when used singly |
| 13 | Non-inverting Input (Amp 4) | Fourth amplifier's non-inverting input; supports reference voltage generation or comparator hysteresis |
| 14 | Output (Amp 4) | Final output; verified for 10 mA continuous load and 30 mA short-circuit current per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| True rail-to-ground output swing | Enables single-supply operation down to +3V with output reaching 0 V - eliminates need for negative rail in battery-powered sensors |
| Input common-mode range includes V− | Permits direct connection of transducer outputs referenced to system ground without level-shifting circuitry |
| Internally compensated design | Guarantees stability with unity-gain feedback across full temperature range - no external compensation capacitor required |
| Channel separation >120 dB | Prevents inter-channel crosstalk in multi-stage active filters or simultaneous sampling circuits |
| Short-circuit protected outputs | Allows safe use in motor driver feedback, solenoid monitoring, or industrial I/O where accidental shorts occur |
Applications
| Industrial Sensor Signal Conditioning | DC Motor Current Sensing |
|---|---|
Use Scenario: Amplifying low-level mV outputs from RTDs, strain gauges, or thermopiles in PLC analog input modules. IC Role / Device Role / Timing Role: Quad op-amp configured as instrumentation amplifier front-end (Amp 1&2), reference buffer (Amp 3), and output driver (Amp 4). Use Value: 500 nA input bias current prevents loading of high-resistance sensor elements; −40°C to +105°C rating ensures accuracy across factory floor temperatures. | Use Scenario: Measuring bidirectional current through shunt resistor in H-bridge motor drivers for overcurrent protection. IC Role / Device Role / Timing Role: Differential amplifier (Amp 1) rejecting common-mode bus noise, followed by comparator with hysteresis (Amp 2) for fast trip detection. Use Value: 70 dB CMRR suppresses PWM switching noise; short-circuit protected output drives logic-level interrupt without external clamping. |
| Programmable Voltage Reference | Active Low-Pass Filter for Audio Preamp |
Use Scenario: Generating stable, adjustable reference voltages for ADCs or DACs in programmable logic controllers. IC Role / Device Role / Timing Role: Precision buffer (Amp 1) isolating Zener or bandgap reference, with trimmable gain stage (Amp 2) and low-noise follower (Amp 3). Use Value: 1 mV typical input offset voltage and 10 µV/°C drift ensure <±5 mV total error over industrial temperature range. | Use Scenario: Anti-aliasing and tone-shaping filtering before audio ADC in industrial HMIs or voice-enabled control panels. IC Role / Device Role / Timing Role: Dual biquad filter section (Amps 1–2 and 3–4) implementing 2-pole low-pass with 20 kHz cutoff and <0.02% THD. Use Value: 1 MHz GBW and 0.35 V/µs slew rate support clean 10 kHz sine wave reproduction; 43° phase margin ensures monotonic step response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM324DT | Higher input offset voltage (7 mV max), lower CMRR (65 dB min), no guaranteed −40°C operation | Not qualified for extended industrial temperature range; less stable in precision DC-coupled loops | Select LM324DT only for cost-sensitive commercial-grade applications below 85°C ambient |
| TL084CDT | JFET-input (50 pA bias), higher slew rate (13 V/µs), but requires ±5V minimum supply and lacks short-circuit protection | Unsuitable for single-supply ≤5V systems or fault-tolerant current sensing | Choose TL084CDT for high-speed AC-coupled signal chains where input impedance >10¹² Ω is mandatory |
Compared with LM324DT and TL084CDT, MC3303DT uniquely balances industrial temperature range, single-supply rail-to-ground output, short-circuit resilience, and bipolar precision - making it optimal for ruggedized analog signal paths where reliability and DC accuracy coexist.
Availability
MC3303DT is available at Aetrix Electronics and suitable for industrial sensor interfaces, motor control feedback loops, and programmable voltage references requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MC3303DT 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 microcontrollers, analog ICs, power management devices, and MEMS sensors for industrial, automotive, and consumer markets.
The MC3303 belongs to ST's legacy bipolar op-amp product line, engineered specifically for robust, cost-effective analog signal conditioning in harsh industrial environments where wide supply range, thermal stability, and fault tolerance are mandatory.
FAQ
Is MC3303DT pin-compatible with UA741-based designs?
No - UA741 is a single op-amp in 8-pin DIP; MC3303DT is a quad op-amp in 14-pin SO package. However, each individual amplifier within MC3303DT matches UA741's functional behavior (input stage, gain, compensation), allowing drop-in replacement per channel when layout is adapted to SO-14 pinout and supply decoupling is updated.
Can MC3303DT operate from a +5V single supply with rail-to-rail output?
It operates from +5V single supply, but output swing is limited to approximately 0 V to +3.3 V (not true rail-to-rail). The datasheet specifies VOPP = VCC − 1.7 V for RL ≥ 10 kΩ at +5V, meaning maximum positive swing is +3.3 V. Ground-swing capability is confirmed; full top-rail reach requires higher supply or rail-sparing design margins.
What is the maximum capacitive load MC3303DT can drive without instability?
MC3303DT is internally compensated for unity-gain stability with resistive loads. Driving >100 pF capacitive load directly risks peaking or oscillation. For loads >100 pF, a series isolation resistor (≥100 Ω) between output and capacitance is required to maintain ≥43° phase margin, as validated in the datasheet's typical performance curves under CL = 100 pF test conditions.
Does MC3303DT support dual-supply operation at ±12V?
Yes - absolute maximum ratings allow ±18V, so ±12V is fully supported. Electrical characteristics (e.g., input offset, CMRR, slew rate) are specified at ±15V and remain valid at ±12V. Performance metrics such as output swing (±10 V min into 2 kΩ) and PSRR (77 dB min) are maintained, confirming reliable operation across the entire ±12V to ±18V dual-supply range.
MC3303DT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 0.5V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 40 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 2.8mA (x4 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 105°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
MC3303DT FAQ
1.How can I place an order for MC3303DT through Aetrix?
Please submit a Request for Quotation (RFQ) for MC3303DT 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 MC3303DT reliable?
The price and inventory of MC3303DT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC3303DT is usually 5 days.
3.What payment methods are accepted for MC3303DT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC3303DT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC3303DT?
MC3303DT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC3303DT 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 MC3303DT?
For technical support, including MC3303DT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC3303DT requirements.
6.How does Aetrix verify that MC3303DT is sourced from the original manufacturer or authorized distributors?
All MC3303DT 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 MC3303DT meets industry standards.
7.What is the process for return or replacement of MC3303DT?
All MC3303DT units undergo pre-shipment inspection (PSI). If there is an issue with MC3303DT, 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 MC3303DT part is unused and in its original packaging.
Return procedure for MC3303DT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MC3303DT 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
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
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…
