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Texas Instruments MC3403NSR
- Part No.:
- MC3403NSR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
MC3403NSR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SO
- Quantity:
- Payment:
- Shipping:
Inventory:3,072
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Product details
Overview
MC3403NSR from Texas Instruments is a quadruple low-power operational amplifier designed for single-supply (3 V to 36 V) or dual-supply (±1.5 V to ±18 V) operation, featuring true differential inputs, Class AB output stage, internal frequency compensation, and input offset voltage ≤10 mV at 25°C. It serves as a general-purpose analog signal conditioner in sensor interfaces, power supply monitoring, and industrial control feedback loops.
For engineers reviewing the MC3403NSR datasheet, MC3403NSR pinout, MC3403NSR application, or MC3403NSR equivalent, key selection considerations include its 0°C to 70°C operating range, 1 MHz unity-gain bandwidth, 0.6 V/µs slew rate, ±10 mA short-circuit output current, and compatibility with legacy µA741-based designs requiring lower quiescent current.
Technical Context
The MC3403NSR implements four independent op-amps sharing common supply rails, each with a bipolar input stage delivering low input bias current (–0.2 µA typ), wide common-mode input range (to VCC–), and rail-to-rail output swing capability (VCC– to VCC+ – 1.5 V). Its internal compensation ensures stable unity-gain operation without external components.
Designed for interoperability with Motorola MC3303/MC3403 families, it supports both single-ended and split-supply configurations while maintaining consistent performance across temperature (0°C to 70°C) and supply voltage (5 V to 30 V). The device includes short-circuit protection and thermal shutdown safeguards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | Single: 3 V to 36 V; Dual: ±1.5 V to ±18 V - enables direct interface with 3.3 V, 5 V, 12 V, and 24 V systems without level-shifting. |
| Unity-Gain Bandwidth | 1 MHz - supports audio-frequency amplification, active filtering, and moderate-speed signal conditioning. |
| Slew Rate | 0.6 V/µs - limits large-signal transient response but ensures stability in DC-coupled feedback networks. |
| Input Offset Voltage | ≤10 mV at 25°C - suitable for precision applications where gain ≥100 keeps error <1% of full-scale output. |
| Quiescent Supply Current | 2.8 mA typical per package - reduces system-level power consumption compared to µA741 (≈5 mA). |
| Output Short-Circuit Current | ±10 mA minimum - provides robust drive capability into low-impedance loads or fault conditions. |
| Common-Mode Input Range | VCC– to VCC+ – 2 V - allows direct sensing of signals referenced to ground in single-supply configurations. |
Pinout & Package
MC3403NSR is housed in a 14-pin SOP (Shrink Small Outline Package) with 0.65 mm lead pitch, 8.1 mm × 10.4 mm body size, and 1.2 mm max height. Pin 1 is located at the top-left corner with notch or index mark orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1OUT | Amplifier A output - drives external load or next stage; capable of sourcing/sinking ±10 mA. |
| 2 | 1IN– | Inverting input of Amp A - high-impedance node; requires matched trace routing to minimize offset drift. |
| 3 | 1IN+ | Non-inverting input of Amp A - accepts reference or sensor signal; common-mode range extends to VCC–. |
| 4 | VCC– | Negative supply rail - shared by all four amplifiers; must be decoupled near package with 0.1 µF ceramic capacitor. |
| 5 | 2IN+ | Non-inverting input of Amp B - electrically isolated from other amps; used for independent signal paths. |
| 6 | 2IN– | Inverting input of Amp B - supports differential or single-ended configurations with local feedback. |
| 7 | 2OUT | Amplifier B output - identical electrical behavior to Pin 1; no cross-talk above 120 dB at 1–20 kHz. |
| 8 | VCC+ | Positive supply rail - shared by all four amplifiers; connects to main system rail or regulated source. |
| 9 | 3OUT | Amplifier C output - fully independent channel; usable for auxiliary functions like bias generation or comparator hysteresis. |
| 10 | 3IN– | Inverting input of Amp C - maintains same input characteristics as Pins 2 and 6; supports multi-channel feedback. |
| 11 | 3IN+ | Non-inverting input of Amp C - compatible with rail-to-rail input sensors or DAC outputs referenced to VCC–. |
| 12 | 4IN+ | Non-inverting input of Amp D - enables simultaneous processing of four analog signals without external multiplexing. |
| 13 | 4IN– | Inverting input of Amp D - supports summing, difference, or instrumentation amplifier topologies. |
| 14 | 4OUT | Amplifier D output - completes quad functionality; output swing reaches within 1.5 V of VCC+ under 2 kΩ load. |
Key Features
| Feature | Design Value |
|---|---|
| Low-power operation | 2.8 mA total supply current - reduces thermal load and extends battery life in portable instrumentation. |
| Internal frequency compensation | Stable unity-gain configuration - eliminates need for external compensation capacitors in most applications. |
| True differential input stage | Input bias current ≤ –0.2 µA at 25°C - minimizes voltage error across high-impedance sensor bridges or photodiode circuits. |
| Class AB output stage | Output swing from VCC– to VCC+ – 1.5 V - maximizes dynamic range in single-supply data acquisition systems. |
| Short-circuit protection | Self-limiting output current up to ±45 mA - prevents latch-up or permanent damage during accidental shorts. |
Applications
| Industrial Sensor Signal Conditioning | DC Power Supply Monitoring |
|---|---|
|
Use Scenario: Amplifying low-level thermocouple or strain gauge outputs in PLC analog input modules. IC Role / Device Role / Timing Role: Quadruple op-amp providing gain, filtering, and level-shifting for four independent sensor channels. Use Value: Enables simultaneous acquisition of multiple analog inputs using one IC, reducing board space and BOM count. |
Use Scenario: Monitoring overvoltage/undervoltage thresholds on 12 V and 24 V industrial power rails. IC Role / Device Role / Timing Role: Configured as comparators with hysteresis to generate fault flags for microcontroller supervision. Use Value: Leverages rail-to-rail input capability to sense voltages down to ground, eliminating need for external bias resistors. |
| Audio Pre-amplification | Motor Control Feedback Loop |
|
Use Scenario: Boosting microphone or line-level signals before ADC sampling in embedded audio recorders. IC Role / Device Role / Timing Role: Single-supply non-inverting amplifier with gain ≥10 and bandwidth >20 kHz. Use Value: 1 MHz bandwidth and 0.6 V/µs slew rate support full audio spectrum without distortion at moderate gains. |
Use Scenario: Isolating and scaling current-sense resistor voltage in H-bridge motor drivers. IC Role / Device Role / Timing Role: Differential amplifier rejecting common-mode noise from PWM switching transients. Use Value: High CMRR (≥70 dB) and low input offset ensure accurate current measurement despite EMI exposure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quadruple low-power op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC3403N | Same electrical specs; PDIP-14 package (13.97 mm width, through-hole mount) | Preferred for prototyping, manual soldering, or legacy board upgrades requiring socket compatibility | Select MC3403N when mechanical fit or hand-soldering is required; MC3403NSR suits automated SMT production. |
| LM324DR | Higher input offset voltage (7 mV typ vs. 2 mV typ for LM324); wider temp range (–40°C to 125°C) | Better suited for automotive or extended-temperature industrial environments where MC3403NSR's 0°C–70°C limit is insufficient | Choose LM324DR if operating beyond 70°C or needing tighter offset spec; verify PCB layout for different pinout. |
Compared with MC3403N and LM324DR, the MC3403NSR offers optimized cost-performance balance for commercial-grade SMT applications, combining shrink SOP packaging, proven reliability, and drop-in compatibility with existing MC3403 designs-without requiring layout changes or recalibration.
Availability
MC3403NSR is available at Aetrix Electronics and suitable for industrial sensor interfaces, DC power supply monitoring, audio pre-amplification, and motor control feedback loops requiring stable component supply across production volumes.
Supply support for MC3403NSR 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 digital signal processing technologies, with decades of experience in high-reliability analog IC design.
The MC3403NSR belongs to TI's legacy general-purpose op-amp product line, engineered for broad compatibility, ease of use, and long-term availability in industrial and commercial applications.
FAQ
What is the maximum operating temperature range for the MC3403NSR?
The MC3403NSR is characterized for operation from 0°C to 70°C ambient temperature. This specification is confirmed in the "Recommended Operating Conditions" table of the official Texas Instruments datasheet SLOS101C. Exceeding 70°C may cause parametric shift or reduced reliability. For extended-temperature applications, consider alternatives like LM324DR (–40°C to 125°C) or verify derating curves in the MC3403NSR thermal data.
Does the MC3403NSR support single-supply operation?
Yes, the MC3403NSR supports true single-supply operation from 3 V to 36 V. Its common-mode input range includes the negative supply rail (VCC–), and output swings from VCC– to VCC+ – 1.5 V. This allows direct interfacing with ground-referenced sensors and microcontrollers without dual supplies - a key advantage over older op-amps like µA741.
What is the input offset voltage specification for the MC3403NSR?
The MC3403NSR has a maximum input offset voltage of 10 mV at 25°C and full temperature range (0°C to 70°C), with a typical value of 2 mV. This parameter is measured under open-loop conditions with VO = 2.5 V at VCC+ = 5 V, as specified in the "Electrical Characteristics" section of the SLOS101C datasheet.
Is the MC3403NSR pin-compatible with the MC3303 series?
No, the MC3403NSR is not pin-compatible with the MC3303 series. While both share identical pin functions and numbering, the MC3303 is rated for –40°C to 85°C operation and has tighter input offset voltage (8 mV max vs. 10 mV for MC3403NSR). They are functionally interchangeable only when temperature and offset requirements align - physical pinout is identical, but thermal and precision specs differ.
What package type does the MC3403NSR use, and what are its dimensions?
The MC3403NSR uses a 14-pin SOP (Shrink Small Outline Package) with JEDEC MO-153 registration, measuring 8.1 mm × 10.4 mm × 1.2 mm (max height). Lead pitch is 0.65 mm, and it ships in tape-and-reel format (2000 units per reel). This package is distinct from SOIC (D) and TSSOP (PW), offering higher density than PDIP but better thermal performance than standard SOIC.
MC3403NSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SO
MC3403NSR FAQ
1.How can I place an order for MC3403NSR through Aetrix?
Please submit a Request for Quotation (RFQ) for MC3403NSR 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 MC3403NSR reliable?
The price and inventory of MC3403NSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC3403NSR is usually 5 days.
3.What payment methods are accepted for MC3403NSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC3403NSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC3403NSR?
MC3403NSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC3403NSR 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 MC3403NSR?
For technical support, including MC3403NSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC3403NSR requirements.
6.How does Aetrix verify that MC3403NSR is sourced from the original manufacturer or authorized distributors?
All MC3403NSR 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 MC3403NSR meets industry standards.
7.What is the process for return or replacement of MC3403NSR?
All MC3403NSR units undergo pre-shipment inspection (PSI). If there is an issue with MC3403NSR, 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 MC3403NSR part is unused and in its original packaging.
Return procedure for MC3403NSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MC3403NSR Tags
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