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Texas Instruments LM4030CMF-2.5/NOPB
- Part No.:
- LM4030CMF-2.5/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM4030CMF-2.5/NOPB.pdf
- Description:
- IC VREF SHUNT 0.15% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,264
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Product details
Overview
LM4030CMF-2.5/NOPB from Texas Instruments is an ultra-high precision 2.5 V shunt voltage reference in SOT-23-5 package, delivering 0.15% initial accuracy, 30 ppm/°C temperature coefficient over −40°C to +125°C, and 75 ppm thermal hysteresis - designed for high-stability analog signal chains in data acquisition systems.
For engineers reviewing the LM4030CMF-2.5/NOPB datasheet, LM4030CMF-2.5/NOPB pinout, LM4030CMF-2.5/NOPB application, or LM4030CMF-2.5/NOPB equivalent, key selection criteria include guaranteed long-term stability (40 ppm), low noise (105 µVPP, 0.1–10 Hz), and operation down to 120 µA with up to 30 mA continuous shunt current.
Technical Context
The LM4030CMF-2.5/NOPB operates as a two-terminal shunt reference requiring only an external series resistor (RZ) to set operating current. Its regulation loop employs dynamic offset cancellation to suppress drift from board stress and thermal cycling.
It exhibits exceptionally low reverse breakdown voltage change with current (25 ppm/mA typical) and stable reverse dynamic impedance across frequency, enabling robust performance in noisy supply environments without mandatory bypass capacitance - though stable with up to 10 µF.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.5 V nominal; fixed, non-adjustable reference voltage for precision ADC/DAC biasing and sensor excitation. |
| Initial Accuracy | ±0.15% (Grade C); ensures ≤ ±3.75 mV absolute error at 25°C, critical for 12-bit+ system calibration. |
| Temp Coefficient | 30 ppm/°C (−40°C to +125°C); contributes ≤ ±90 ppm (±0.225 mV) max drift across full industrial range. |
| Long-Term Stability | 40 ppm (1000 hrs @ 30°C); limits aging-induced error to < ±0.1 mV over one year under typical conditions. |
| Thermal Hysteresis | 75 ppm (−40°C ↔ +125°C ×8 cycles); guarantees ≤ ±0.188 mV repeatability after extreme temperature excursions. |
| Min Operating Current | 120 µA; enables ultra-low-power reference operation in battery-backed or energy-harvesting systems. |
| Noise (0.1–10 Hz) | 105 µVPP; supports high-resolution measurements where sub-LSB noise is essential (e.g., 16-bit 2.5 V full-scale). |
Pinout & Package
SOT-23-5 (DBV) package: 2.9 mm × 1.6 mm × 1.45 mm body, gull-wing leads, RoHS-compliant matte tin lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No-connect | Internally unconnected; must be left floating per datasheet - no routing or grounding allowed. |
| 2 | GND or NC | Functional ground connection; if used as GND, provides reference return path; if unused, leave floating. |
| 3 | No-connect | Internally unconnected; must be left floating - not a test pad or auxiliary function. |
| 4 | VREF | Reference output terminal; connects to load and feedback node; requires low-impedance layout to minimize IR drop. |
| 5 | GND | Dedicated ground terminal; must be tied to system ground plane with minimal trace inductance for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low thermal hysteresis | 75 ppm over −40°C to +125°C cycling - preserves calibration integrity in field-deployed industrial sensors. |
| High immunity to PCB stress | Dynamic offset cancellation architecture minimizes VREF shift caused by solder joint strain or board flexure. |
| Capacitor-free operation | Stable without external COUT; optional 0–10 µF capacitor improves transient response and broadband noise rejection. |
| Wide shunt current range | Operates from 120 µA to 30 mA - supports both ultra-low-power standby and high-current precision DAC buffering. |
| Robust transient handling | Withstands 50 mA transients (<1 s) - protects against load switching surges in automated test equipment. |
Applications
| Data Acquisition Systems | Automotive Sensor Modules |
|---|---|
Use Scenario: High-resolution 16-bit SAR ADC front-end in portable multimeters and process monitors. IC Role / Device Role / Timing Role: Provides stable 2.5 V reference for ADC internal conversion and external signal conditioning. Use Value: Enables ±0.5 LSB integral nonlinearity with <105 µVPP noise floor, meeting IEC 61000-4-3 immunity requirements. | Use Scenario: Reference for pressure and temperature sensor signal chains in engine control units (ECUs). IC Role / Device Role / Timing Role: Supplies excitation and reference voltage for bridge-based sensors operating across −40°C to +125°C. Use Value: Maintains <±0.15% accuracy and 75 ppm hysteresis despite thermal cycling, ensuring AEC-Q200-compliant calibration stability. |
| Industrial PLC Analog I/O | Medical Instrumentation |
Use Scenario: Precision current-loop (4–20 mA) transmitter with isolated DAC and voltage-to-current conversion. IC Role / Device Role / Timing Role: Sets accurate 2.5 V reference for DAC output scaling and loop calibration resistors. Use Value: Guarantees <±0.05% full-scale error over 10-year field life due to 40 ppm long-term stability and low board-stress sensitivity. | Use Scenario: Reference for ECG/EEG analog front-ends requiring ultra-low noise and DC stability. IC Role / Device Role / Timing Role: Supplies clean, drift-free bias for instrumentation amplifiers and anti-alias filters. Use Value: Delivers 105 µVPP (0.1–10 Hz) noise and <30 ppm/°C drift - meets IEC 60601-2-27 EEG baseline stability requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM4040C25IDBZR | 2.5 V, ±0.5% initial accuracy, 100 ppm/°C TC, SOT-23-3; higher drift, looser tolerance, no Grade C equivalent. | Lower-cost option for 12-bit systems where ±12.5 mV error is acceptable; lacks thermal hysteresis spec. | Select when budget constraints outweigh precision needs and long-term stability is non-critical. |
| REF3025AIDBZR | 2.5 V, ±0.2% initial accuracy, 50 ppm/°C TC, SOT-23-3; series topology, requires minimum load current, higher quiescent power. | Suitable for low-noise LDO-like configurations but incompatible with shunt-based topologies requiring zero-load current capability. | Choose only if system architecture mandates series reference and can support ≥100 µA load current. |
Compared with LM4040C25IDBZR and REF3025AIDBZR, the LM4030CMF-2.5/NOPB delivers superior initial accuracy (±0.15% vs ±0.5%/±0.2%), lower thermal hysteresis (75 ppm vs uncharacterized), and true zero-load operation - making it uniquely suited for high-reliability, wide-temperature, low-power shunt reference designs.
Availability
LM4030CMF-2.5/NOPB is available at Aetrix Electronics and suitable for data acquisition systems, automotive sensor modules, and industrial PLC analog I/O requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for LM4030CMF-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 industrial-grade ICs.
The LM4030 product line was engineered specifically for ultra-high-accuracy shunt reference applications demanding minimal drift, exceptional long-term stability, and resilience to mechanical and thermal stress in harsh environments.
FAQ
What is the maximum continuous shunt current rating for LM4030CMF-2.5/NOPB?
The LM4030CMF-2.5/NOPB supports a maximum continuous shunt current of 30 mA. This rating is specified across the full operating junction temperature range of −40°C to +125°C and defines the upper limit for steady-state current sinking capability without derating. Transient currents up to 50 mA are permitted for durations under 1 second.
Does LM4030CMF-2.5/NOPB require an external capacitor to operate stably?
No, the LM4030CMF-2.5/NOPB is designed to operate stably without any external capacitor. It remains functional and well-regulated from 120 µA to 30 mA with no added capacitance. However, a bypass capacitor up to 10 µF may be added at the VREF pin to improve transient response and reduce broadband noise - placement must be adjacent to the device.
What does the 'C' grade signify in LM4030CMF-2.5/NOPB?
The 'C' in LM4030CMF-2.5/NOPB denotes Grade C performance: ±0.15% initial accuracy at 25°C and a temperature coefficient of 30 ppm/°C over −40°C to +125°C. This grade offers the broadest tolerance and highest TC within the LM4030 family, optimized for cost-sensitive industrial applications where moderate precision suffices.
How is thermal hysteresis specified for LM4030CMF-2.5/NOPB?
Thermal hysteresis for LM4030CMF-2.5/NOPB is specified as 75 ppm, measured as the change in output voltage at +25°C before and after eight complete thermal cycles between −40°C and +125°C. This value reflects real-world repeatability after environmental stress and is guaranteed for Grade C devices per the SNVS552B datasheet.
Can LM4030CMF-2.5/NOPB be used in place of LM4030AMF-2.5/NOPB?
Yes, the LM4030CMF-2.5/NOPB is pin-compatible and functionally identical to the LM4030AMF-2.5/NOPB except for reduced precision: Grade C offers ±0.15% initial accuracy and 30 ppm/°C TC versus Grade A's ±0.05% and 10 ppm/°C. Substitution is valid where tighter specifications are not required, but recalibration may be needed in metrology-grade systems.
LM4030CMF-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:
- ±0.15%
- Temperature Coefficient:
- 30ppm/°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
LM4030CMF-2.5/NOPB FAQ
1.How can I place an order for LM4030CMF-2.5/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4030CMF-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 LM4030CMF-2.5/NOPB reliable?
The price and inventory of LM4030CMF-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 LM4030CMF-2.5/NOPB is usually 5 days.
3.What payment methods are accepted for LM4030CMF-2.5/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4030CMF-2.5/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4030CMF-2.5/NOPB?
LM4030CMF-2.5/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4030CMF-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 LM4030CMF-2.5/NOPB?
For technical support, including LM4030CMF-2.5/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4030CMF-2.5/NOPB requirements.
6.How does Aetrix verify that LM4030CMF-2.5/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4030CMF-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 LM4030CMF-2.5/NOPB meets industry standards.
7.What is the process for return or replacement of LM4030CMF-2.5/NOPB?
All LM4030CMF-2.5/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4030CMF-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 LM4030CMF-2.5/NOPB part is unused and in its original packaging.
Return procedure for LM4030CMF-2.5/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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