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Texas Instruments LM4030BMF-4.096/NOPB
- Part No.:
- LM4030BMF-4.096/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LM4030BMF-4.096/NOPB.pdf
- Description:
- IC VREF SHUNT 0.1% SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,206
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Product details
Overview
LM4030BMF-4.096/NOPB from Texas Instruments is an ultra-high precision shunt voltage reference in SOT-23-5 package, delivering a fixed 4.096 V output with ±0.10% initial accuracy (B-grade), 20 ppm/°C max temperature coefficient over −40°C to +125°C, and 75 ppm thermal hysteresis - used as a stable system reference in high-resolution ADCs and precision data acquisition circuits.
For engineers reviewing the LM4030BMF-4.096/NOPB datasheet, LM4030BMF-4.096/NOPB pinout, LM4030BMF-4.096/NOPB application, or LM4030BMF-4.096/NOPB equivalent, key selection criteria include shunt current range (130 µA–30 mA), low 165 µVPP (0.1–10 Hz) noise, immunity to board stress, and compatibility with up to 10 µF bypass capacitors without instability.
Technical Context
The LM4030BMF-4.096/NOPB operates as a two-terminal shunt reference requiring only a series resistor (RZ) to set operating current; its regulation loop uses dynamic offset cancellation to suppress drift from thermal cycling and PCB stress. It functions across −40°C to +125°C junction temperature with no external capacitor required but supports up to 10 µF for improved transient response and broadband noise suppression.
Its reverse dynamic impedance decreases with increasing shunt current - enabling lower noise and higher supply rejection at higher bias currents - while maintaining <25 ppm/mA typical voltage change versus load current variation from 160 µA to 30 mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096 V nominal; exact value enables 12-bit full-scale alignment in 4.096 V-referenced ADC systems (e.g., 1 LSB = 1 mV). |
| Initial Accuracy | ±0.10% (B-grade); ensures ≤±4.1 mV absolute error at 25°C without calibration. |
| Temp Coefficient | 20 ppm/°C max (−40°C to +125°C); contributes ≤±1.65 mV drift over full range. |
| Thermal Hysteresis | 75 ppm max; ≤±0.31 mV shift after eight −40°C/+125°C cycles. |
| Long-Term Stability | 40 ppm (1000 hrs @ 30°C); ≤±1.64 mV drift over 6 weeks under bias. |
| Output Noise | 165 µVPP (0.1–10 Hz); critical for sub-LSB noise floor in 16-bit+ signal chains. |
| Min Operating Current | 130 µA; allows ultra-low-power biasing in battery-operated precision sensors. |
Pinout & Package
SOT-23-5 (DBV) package: 2.9 mm × 1.6 mm × 1.45 mm body, 5-pin surface-mount, RoHS-compliant tin (Sn) lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | No connect | Must be left floating; internal disconnect - no routing or grounding allowed. |
| 2 | GND or N/C | Functional ground connection; if unused, leave floating per datasheet guidance. |
| 3 | No connect | Internally unconnected; must remain unattached on PCB. |
| 4 | VREF | Reference voltage output node; connects directly to ADC REF+ or instrumentation amplifier reference input. |
| 5 | GND | Primary ground return; requires low-impedance path to system ground plane to minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-stable 4.096 V output | Enables direct 12-bit integer scaling (4096 codes = 4.096 V), eliminating software gain correction in digitizers. |
| Dynamic offset cancellation | Reduces long-term drift and thermal hysteresis impact despite SOT-23 mechanical stress sensitivity. |
| Capacitor-free operation | Stable with zero external capacitance - simplifies layout in space-constrained modules like sensor nodes. |
| High transient tolerance | Withstands 50 mA short-duration surges without damage or parametric shift - robust in noisy industrial supplies. |
| Board stress immunity | Maintains accuracy despite solder joint expansion/contraction and PCB flexure - validated for automotive under-hood use. |
Applications
| Data Acquisition Systems | Test & Measurement Equipment |
|---|---|
|
Use Scenario: High-resolution (16–24-bit) delta-sigma ADC front-end in portable multimeters and data loggers. IC Role / Device Role / Timing Role: Shunt reference providing stable 4.096 V excitation and conversion reference for ratiometric sensor measurements. Use Value: Enables true 12-bit resolution without calibration; 75 ppm hysteresis prevents measurement repeatability errors after thermal cycling. |
Use Scenario: Calibration-grade bench DMMs requiring traceable, low-drift reference voltage sources. IC Role / Device Role / Timing Role: Primary voltage standard for internal DAC-based self-calibration routines and reference buffer stages. Use Value: 40 ppm long-term stability reduces annual recalibration frequency; 20 ppm/°C TC meets ANSI C12.20 Class 0.1 accuracy requirements. |
| Automotive Sensor Modules | Industrial Process Controllers |
|
Use Scenario: Engine control unit (ECU) pressure and temperature sensor signal conditioning under hood (-40°C to +125°C). IC Role / Device Role / Timing Role: Local reference for analog front-end multiplexers and sigma-delta modulators feeding MCU ADCs. Use Value: Guaranteed operation across full automotive junction temperature range; board stress immunity avoids drift from engine vibration and thermal cycling. |
Use Scenario: PLC analog I/O modules converting 4–20 mA field signals with 16-bit precision and >10-year field life. IC Role / Device Role / Timing Role: Precision shunt reference for isolated current-to-voltage conversion and ADC reference in DIN-rail mounted controllers. Use Value: 30 mA continuous shunt capability supports active loop-powered designs; 165 µVPP noise ensures <0.001% measurement uncertainty. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM4040CIM3-4.096/NOPB | Higher initial tolerance (±0.5%), 50 ppm/°C TC, SOT-23-3 package, no N/C pins. | Limited to cost-sensitive, lower-accuracy applications; lacks thermal hysteresis and long-term stability specs. | Select when budget constraints outweigh 0.10% accuracy and 75 ppm hysteresis requirements. |
| REF3040AIDBZR | Series reference (not shunt); 4.096 V, ±0.2%, 50 ppm/°C, 12 µA quiescent current, SOT-23-3. | Requires minimum load current; incompatible with floating-bus or high-side sensing topologies. | Choose only for low-quiescent-current, series-regulator-compatible designs where shunt topology is not feasible. |
Compared with LM4030BMF-4.096/NOPB, LM4040CIM3-4.096/NOPB trades 5× worse accuracy and stability for lower cost, while REF3040AIDBZR changes topology entirely - eliminating shunt flexibility but reducing supply current by 99%.
Availability
LM4030BMF-4.096/NOPB is available at Aetrix Electronics and suitable for data acquisition systems, test equipment, and automotive sensor modules requiring stable component supply with guaranteed long-term availability and full traceability.
Supply support for LM4030BMF-4.096/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 over 50 years of precision reference design heritage.
The LM4030 product line delivers ultra-high-accuracy shunt references for metrology-grade signal chains, targeting applications where thermal hysteresis, long-term drift, and board-level stress effects must be minimized - especially in automotive, industrial, and instrumentation markets.
FAQ
What is the minimum operating current for LM4030BMF-4.096/NOPB?
The LM4030BMF-4.096/NOPB requires a minimum shunt current of 130 µA to maintain regulation and specified accuracy. Below this threshold, output voltage may deviate beyond guaranteed limits. This value is explicitly tested and ensured per the SNVS552B datasheet, and applies across the full −40°C to +125°C operating temperature range.
Does LM4030BMF-4.096/NOPB require an external capacitor to operate?
No, the LM4030BMF-4.096/NOPB is designed for stable operation with zero external capacitance. 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 power environments. The device remains stable across this entire capacitance range.
What does the 'B' in LM4030BMF-4.096/NOPB signify?
The 'B' denotes the accuracy grade: LM4030B-4.096 offers ±0.10% initial voltage tolerance and 20 ppm/°C maximum temperature coefficient over −40°C to +125°C. This is distinct from the 'A' grade (±0.05%, 10 ppm/°C) and 'C' grade (±0.15%, 30 ppm/°C), and is confirmed in the Electrical Characteristics tables for LM4030-4.096 in the SNVS552B datasheet.
Can LM4030BMF-4.096/NOPB be used in place of LM4030AMF-4.096/NOPB?
Yes, the LM4030BMF-4.096/NOPB is pin-compatible and functionally identical to the 'A' grade except for relaxed initial accuracy (±0.10% vs. ±0.05%) and temperature coefficient (20 ppm/°C vs. 10 ppm/°C). No PCB changes are required, but system-level accuracy verification is recommended if the design relies on sub-0.05% reference stability.
What is the maximum continuous shunt current rating for LM4030BMF-4.096/NOPB?
The LM4030BMF-4.096/NOPB is rated for 30 mA maximum continuous shunt current. This limit is defined in the Operating Ratings section of SNVS552B and accounts for thermal dissipation within the SOT-23-5 package at ambient temperatures up to +125°C. Exceeding this current risks exceeding the 125°C maximum junction temperature.
LM4030BMF-4.096/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):
- 4.096V
- Voltage - Output (Max):
- -
- Current - Output:
- 30 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 20ppm/°C
- Noise - 0.1Hz to 10Hz:
- 165µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- -
- Current - Supply:
- -
- Current - Cathode:
- 130 µA
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LM4030BMF-4.096/NOPB FAQ
1.How can I place an order for LM4030BMF-4.096/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4030BMF-4.096/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 LM4030BMF-4.096/NOPB reliable?
The price and inventory of LM4030BMF-4.096/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4030BMF-4.096/NOPB is usually 5 days.
3.What payment methods are accepted for LM4030BMF-4.096/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4030BMF-4.096/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4030BMF-4.096/NOPB?
LM4030BMF-4.096/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4030BMF-4.096/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 LM4030BMF-4.096/NOPB?
For technical support, including LM4030BMF-4.096/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4030BMF-4.096/NOPB requirements.
6.How does Aetrix verify that LM4030BMF-4.096/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4030BMF-4.096/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 LM4030BMF-4.096/NOPB meets industry standards.
7.What is the process for return or replacement of LM4030BMF-4.096/NOPB?
All LM4030BMF-4.096/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4030BMF-4.096/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 LM4030BMF-4.096/NOPB part is unused and in its original packaging.
Return procedure for LM4030BMF-4.096/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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