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Texas Instruments LM4030AMFX-2.5/NOPB
- Part No.:
- LM4030AMFX-2.5/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM4030AMFX-2.5/NOPB.pdf
- Description:
- IC VREF SHUNT 0.05% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,840
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Product details
Overview
LM4030AMFX-2.5/NOPB from Texas Instruments is an ultra-high precision 2.5 V shunt voltage reference in SOT-23-5 package, delivering 0.05% initial accuracy, 10 ppm/°C temperature coefficient (0°C to +85°C), and 75 ppm thermal hysteresis over −40°C to +125°C. It operates with as little as 120 µA and supports up to 30 mA continuous shunt current, serving as a stable system reference in high-resolution data acquisition signal paths.
For engineers reviewing the LM4030AMFX-2.5/NOPB datasheet, LM4030AMFX-2.5/NOPB pinout, LM4030AMFX-2.5/NOPB application, or LM4030AMFX-2.5/NOPB equivalent, this device is selected for precision analog systems requiring low-drift, low-noise, board-stress-immune voltage references in space-constrained industrial and automotive designs.
Technical Context
The LM4030AMFX-2.5/NOPB uses a bandgap-based shunt architecture with dynamic offset cancellation to suppress drift from die stress and thermal cycling. Its reverse breakdown voltage is stabilized at 2.5 V with guaranteed tolerance of ±0.05% across grade A devices.
It exhibits exceptionally low output voltage change versus shunt current (25 ppm/mA typical) and maintains stability without external capacitance-though up to 10 µF bypass capacitors are supported for improved transient response and noise filtering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.5 V nominal; enables direct interface with 2.5 V ADCs, DACs, and precision comparators. |
| Initial Accuracy | ±0.05% (Grade A); ensures ≤1.25 mV absolute error at 25°C without calibration. |
| Temp Coefficient | 10 ppm/°C (0°C to +85°C); limits drift to ±0.85 mV over industrial temperature range. |
| Thermal Hysteresis | 75 ppm max (−40°C to +125°C); guarantees repeatability after thermal cycling in harsh environments. |
| Long-Term Stability | 40 ppm (1000 hrs @ 30°C); corresponds to <0.1 mV drift over 6 weeks under bias. |
| Min Operating Current | 120 µA; allows use in ultra-low-power sensor front-ends and battery-backed systems. |
| Max Shunt Current | 30 mA continuous; supports high-precision references for multi-channel data loggers and PLC I/O modules. |
Pinout & Package
SOT-23-5 (DBV) package: 2.9 mm × 1.6 mm × 1.45 mm height, surface-mount, RoHS-compliant tin (SN) finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | N/C | No-connect pin; must remain floating-no internal connection or function. |
| 2 | GND or N/C | Ground terminal or no-connect; tied to PCB ground plane when used as GND. |
| 3 | N/C | No-connect pin; must remain floating-no internal connection or function. |
| 4 | VREF | Reference voltage output node; connects directly to load or feedback network. |
| 5 | GND | Dedicated ground return; must be low-impedance path to minimize ground bounce errors. |
Key Features
| Feature | Design Value |
|---|---|
| Board Stress Immunity | Engineered silicon layout and dynamic offset cancellation reduce mounting-induced VREF shift in SMT assemblies. |
| Capacitor-Free Operation | Stable without external COUT; eliminates BOM cost and layout sensitivity while supporting optional 10 µF bypassing. |
| Low-Frequency Noise | 105 µVPP (0.1–10 Hz); minimizes quantization uncertainty in 16-bit+ SAR and delta-sigma ADCs. |
| Transient Handling | Withstands 50 mA transients (<1 s); protects reference integrity during load switching or fault events. |
| Extended Temp Range | Rated −40°C to +125°C junction; qualified for under-hood automotive and industrial control applications. |
Applications
| High-Resolution Data Acquisition | Automotive Sensor Conditioning |
|---|---|
|
Use Scenario: Precision 24-bit delta-sigma ADC front-end in portable multimeters and calibration equipment. IC Role / Device Role / Timing Role: Shunt reference providing stable 2.5 V reference for ADC internal gain stage and external input scaling. Use Value: Enables <1 LSB INL error over temperature due to 10 ppm/°C TC and 75 ppm hysteresis. |
Use Scenario: Reference for pressure, temperature, and position sensor signal conditioning in engine control units. IC Role / Device Role / Timing Role: Primary voltage reference for op-amp-based ratiometric amplifiers feeding microcontroller ADC inputs. Use Value: Maintains <±0.01% full-scale accuracy across −40°C to +125°C ambient, meeting AEC-Q100 Grade 1 requirements. |
| Industrial PLC Analog I/O Modules | Medical Instrumentation |
|
Use Scenario: Multi-channel 16-bit DAC output buffer reference in programmable logic controller analog output cards. IC Role / Device Role / Timing Role: Shared reference source for multiple DACs ensuring channel-to-channel monotonicity and gain matching. Use Value: 40 ppm long-term stability prevents recalibration drift over 12-month maintenance cycles. |
Use Scenario: Reference for ECG and EEG front-end instrumentation amplifiers and anti-aliasing filters. IC Role / Device Role / Timing Role: Low-noise 2.5 V reference enabling sub-µV input-referred noise performance in biopotential measurement chains. Use Value: 105 µVPP (0.1–10 Hz) noise floor supports detection of <5 µV cardiac signals without averaging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3025AIDBZR | 2.5 V, ±0.2% initial accuracy, 50 ppm/°C TC, SOT-23-3, 25 µA min current | Larger initial error and higher TC; suitable only where 0.2% system accuracy suffices | Select when lower cost and smaller 3-pin footprint outweigh need for 0.05% precision |
| ADR3425ARJZ-R7 | 2.5 V, ±0.1% initial accuracy, 10 ppm/°C TC, SOT-23-5, 100 µA min current | Same TC but looser initial tolerance; higher 100 µA min current increases power overhead | Choose if sourcing from Analog Devices preferred, but verify 0.1% error budget accommodates system requirements |
Compared with REF3025AIDBZR and ADR3425ARJZ-R7, the LM4030AMFX-2.5/NOPB delivers superior initial accuracy and lower minimum operating current-critical for battery-powered and metrology-grade systems-while maintaining identical SOT-23-5 footprint compatibility.
Availability
LM4030AMFX-2.5/NOPB is available at Aetrix Electronics and suitable for high-resolution data acquisition, automotive sensor conditioning, and industrial PLC analog I/O modules requiring stable component supply and long-term calibration integrity.
Supply support for LM4030AMFX-2.5/NOPB 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 and embedded processing technologies, with decades of expertise in precision voltage references and signal-chain ICs.
The LM4030 product line was designed specifically for metrology-grade applications demanding ultra-low drift, exceptional thermal hysteresis performance, and immunity to mechanical stress in compact SMT packages.
FAQ
What is the maximum continuous shunt current rating for LM4030AMFX-2.5/NOPB?
The LM4030AMFX-2.5/NOPB supports up to 30 mA continuous shunt current. This rating ensures stable 2.5 V regulation under sustained load conditions typical in multi-channel data acquisition systems. Exceeding this limit risks thermal runaway or parametric shift; transient peaks up to 50 mA are permitted for <1 second per datasheet specification.
Does LM4030AMFX-2.5/NOPB require an external capacitor for stability?
No, the LM4030AMFX-2.5/NOPB is internally compensated and operates stably without any external capacitor. However, a bypass capacitor up to 10 µF may be added at the VREF pin to improve transient response and reduce broadband noise-particularly beneficial in noisy industrial environments or fast-switching power supply domains.
What does the 'A' grade signify in LM4030AMFX-2.5/NOPB?
The 'A' grade in LM4030AMFX-2.5/NOPB denotes the highest accuracy bin: ±0.05% initial tolerance at 25°C and 10 ppm/°C temperature coefficient over 0°C to +85°C. This grade is validated per TI's production test flow and is required for applications such as 24-bit ADC references and calibration equipment where sub-millivolt absolute accuracy is mandatory.
How is thermal hysteresis specified for LM4030AMFX-2.5/NOPB?
Thermal hysteresis for LM4030AMFX-2.5/NOPB is specified as 75 ppm maximum, measured as the change in 25°C output voltage before and after eight full thermal cycles from −40°C to +125°C. This parameter reflects repeatability after environmental stress and is critical for systems undergoing repeated temperature excursions, such as automotive ECUs and outdoor instrumentation.
Can LM4030AMFX-2.5/NOPB be used in place of LM4030BMFX-2.5/NOPB?
Yes, LM4030AMFX-2.5/NOPB is a direct functional upgrade to LM4030BMFX-2.5/NOPB, offering tighter initial accuracy (±0.05% vs. ±0.10%) and lower temperature coefficient (10 ppm/°C vs. 20 ppm/°C). Both share identical SOT-23-5 packaging, pinout, and electrical interface-no PCB changes are needed when upgrading to the 'A' grade for enhanced system precision.
LM4030AMFX-2.5/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- SC-74A, SOT-753
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Shunt
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 30 mA
- Tolerance:
- ±0.05%
- Temperature Coefficient:
- 20ppm/°C
- Noise - 0.1Hz to 10Hz:
- 105µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- -
- Current - Supply:
- -
- Current - Cathode:
- 120 µA
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LM4030AMFX-2.5/NOPB FAQ
1.How can I place an order for LM4030AMFX-2.5/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4030AMFX-2.5/NOPB 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 LM4030AMFX-2.5/NOPB reliable?
The price and inventory of LM4030AMFX-2.5/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4030AMFX-2.5/NOPB is usually 5 days.
3.What payment methods are accepted for LM4030AMFX-2.5/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4030AMFX-2.5/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4030AMFX-2.5/NOPB?
LM4030AMFX-2.5/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4030AMFX-2.5/NOPB 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 LM4030AMFX-2.5/NOPB?
For technical support, including LM4030AMFX-2.5/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4030AMFX-2.5/NOPB requirements.
6.How does Aetrix verify that LM4030AMFX-2.5/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4030AMFX-2.5/NOPB 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 LM4030AMFX-2.5/NOPB meets industry standards.
7.What is the process for return or replacement of LM4030AMFX-2.5/NOPB?
All LM4030AMFX-2.5/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4030AMFX-2.5/NOPB, 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 LM4030AMFX-2.5/NOPB part is unused and in its original packaging.
Return procedure for LM4030AMFX-2.5/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM4030AMFX-2.5/NOPB Tags
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