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Texas Instruments LM4050BEM3-10/NOPB
- Part No.:
- LM4050BEM3-10/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
LM4050BEM3-10/NOPB.pdf
- Description:
- IC VREF SHUNT 0.2% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,529
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Product details
Overview
LM4050BEM3-10/NOPB from Texas Instruments is a precision micropower shunt voltage reference with 10 V nominal reverse breakdown voltage, ±0.2% initial tolerance (B grade), 50 ppm/°C max temperature coefficient, and 100 μA minimum operating current. It operates across −40°C to 125°C and delivers stable reference performance in space-constrained analog signal chains and data acquisition front-ends.
For engineers reviewing the LM4050BEM3-10/NOPB datasheet, LM4050BEM3-10/NOPB pinout, LM4050BEM3-10/NOPB application, or LM4050BEM3-10/NOPB equivalent, key selection considerations include its SOT-23 package compatibility, no-output-capacitor-required operation, capacitive load tolerance, 150 μVrms wideband noise (10 Hz–10 kHz), and industrial/automotive-grade thermal stability.
Technical Context
The LM4050BEM3-10/NOPB uses bandgap-based Zener-zap trimmed shunt topology with curvature-corrected temperature drift compensation. Its dynamic impedance remains below 0.7 Ω at 1 mA, enabling high PSRR and low noise in precision ADC biasing and DAC reference applications.
It functions as a two-terminal device requiring only an external series resistor for current setting. Stability is maintained without output capacitance and with any capacitive load up to 10 nF, simplifying layout in battery-powered instrumentation and portable test equipment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 10 V nominal reverse breakdown voltage, verified at 150 μA test current |
| Initial Tolerance | ±0.2% at 25°C (B grade), enabling <±20 mV absolute error in calibration circuits |
| Temp Coefficient | ≤50 ppm/°C over −40°C to 125°C, limiting drift to <±65 mV across full range |
| Min Operating Current | 100 μA (typical), allowing ultra-low-power operation in energy-harvesting systems |
| Noise (10 Hz–10 kHz) | 150 μVrms, supporting 16-bit+ resolution in precision measurement front-ends |
| Dynamic Impedance | 0.7 Ω max at 1 mA, ensuring minimal load regulation error (<7 mV at 10 mA load change) |
| Long-Term Stability | 120 ppm after 1000 hrs, supporting reliable performance in field-deployed equipment |
Pinout & Package
SOT-23 (DBZ) package, 2.92 mm × 1.30 mm body size, 3-pin surface-mount configuration with exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (Pin 1) | Shunt current input / reference voltage node | Connects to supply rail via series resistor; sets operating point and defines reference output |
| Anode (Pin 2) | Common return / ground reference | Must be tied to system ground; forms reference potential for all downstream circuitry |
| NC (Pin 3) | No internal connection | Left floating per datasheet; no routing or soldering required |
Key Features
| Feature | Design Value |
|---|---|
| No output capacitor required | Eliminates BOM cost and board area for stabilization, reducing design cycle time |
| Tolerates capacitive loads | Stable with up to 10 nF load capacitance, enabling direct drive of SAR ADC sample capacitors |
| Fixed 10 V breakdown voltage | Matches standard DAC/ADC full-scale ranges and eliminates trimming resistors in feedback loops |
| Industrial & extended temp range | Rated for −40°C to 125°C operation, suitable for automotive under-hood and industrial control environments |
| Low 150 μVrms noise | Preserves SNR in 16-bit+ data acquisition systems without external filtering |
Applications
| Portable Instrumentation | Data Acquisition Systems |
|---|---|
Use Scenario: Handheld multimeters and portable oscilloscopes requiring stable, low-power voltage references. IC Role / Device Role / Timing Role: Shunt reference providing precise 10 V reference for ADC front-end scaling and offset calibration. Use Value: Enables <±0.2% measurement accuracy over temperature without active compensation circuitry. |
Use Scenario: Modular DAQ modules used in lab and factory test benches. IC Role / Device Role / Timing Role: Precision reference for 16-bit successive-approximation ADCs and programmable gain amplifiers. Use Value: Delivers 150 μVrms noise floor and <7 mV load regulation error, preserving ENOB in high-resolution sampling. |
| Energy Management Systems | Precision Audio Components |
Use Scenario: Battery monitoring ICs and smart energy meters needing long-term stable references. IC Role / Device Role / Timing Role: Reference source for voltage/current sensing amplifiers and coulomb counting circuits. Use Value: 120 ppm long-term stability ensures <±1 mV drift over 1000 hours, critical for billing-grade accuracy. |
Use Scenario: High-fidelity audio DACs and digital volume controllers requiring low-noise biasing. IC Role / Device Role / Timing Role: Shunt reference for op-amp bias networks and analog output stage calibration. Use Value: 50 ppm/°C tempco and 150 μVrms noise prevent audible distortion and channel imbalance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5010IDBZR | Series reference; 10 V output, 3 ppm/°C tempco, requires input capacitor and higher quiescent current (≈1 mA) | Higher accuracy but incompatible topology-requires redesign of bias network and power path | Select when sub-ppm/°C drift is mandatory and board space allows larger footprint and additional components |
| TL431CDBZR | Adjustable shunt reference; 2.5 V base, requires two external resistors for 10 V; ±1% initial tolerance, 92 ppm/°C tempco | Lower cost but lacks precision-suitable for non-critical biasing, not metrology-grade systems | Select for cost-sensitive applications where ±1% tolerance and higher drift are acceptable |
Compared with REF5010IDBZR and TL431CDBZR, the LM4050BEM3-10/NOPB uniquely combines fixed 10 V output, SOT-23 footprint, no-capacitor operation, and ±0.2% tolerance-making it optimal for compact, low-power, precision analog designs without topology change.
Availability
LM4050BEM3-10/NOPB is available at Aetrix Electronics and suitable for portable instrumentation, data acquisition systems, and energy management applications requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.
Supply support for LM4050BEM3-10/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 reference design and high-reliability manufacturing.
The LM4050-N product line delivers micropower shunt voltage references optimized for space-constrained, battery-operated, and thermally demanding applications-including industrial automation, automotive subsystems, and portable test equipment.
FAQ
What is the minimum operating current for LM4050BEM3-10/NOPB?
The LM4050BEM3-10/NOPB has a typical minimum operating current of 100 μA at 25°C, increasing slightly to 110 μA over the extended −40°C to 125°C temperature range. This low current enables use in ultra-low-power systems such as energy-harvesting sensors and coin-cell-powered instruments. The LM4050BEM3-10/NOPB maintains regulation down to this threshold while delivering stable 10 V reference output.
Does LM4050BEM3-10/NOPB require an output capacitor?
No, the LM4050BEM3-10/NOPB does not require an output capacitor for stability. Its internal design ensures unconditional stability with any capacitive load up to 10 nF, eliminating the need for external bypass components. This simplifies PCB layout and reduces BOM count-particularly valuable in miniaturized designs where the LM4050BEM3-10/NOPB is deployed.
What is the temperature coefficient specification for LM4050BEM3-10/NOPB?
The LM4050BEM3-10/NOPB has a maximum temperature coefficient of 50 ppm/°C over the full −40°C to 125°C operating range. At 10 V output, this translates to ≤±65 mV total drift across temperature extremes. This spec is guaranteed for the B-grade device and supports high-accuracy applications like portable calibrators and industrial sensor interfaces where thermal stability is critical.
Is LM4050BEM3-10/NOPB qualified for automotive applications?
The LM4050BEM3-10/NOPB is not AEC-Q100 qualified; that qualification applies only to the LM4050-N-Q1 variant (e.g., LM4050BEM3-10Q/NOPB). However, the LM4050BEM3-10/NOPB shares identical electrical specs and operates across −40°C to 125°C, making it suitable for non-safety-critical automotive subsystems such as infotainment power management or cabin sensor biasing-provided customer validation confirms compliance with end-equipment requirements.
How does LM4050BEM3-10/NOPB compare to LM4050AEM3-10/NOPB?
The LM4050BEM3-10/NOPB differs from LM4050AEM3-10/NOPB solely in initial voltage tolerance: B grade is ±0.2%, while A grade is ±0.1%. All other parameters-including tempco (50 ppm/°C max), noise (150 μVrms), min current (100 μA), and package-are identical. Choose LM4050BEM3-10/NOPB when ±0.2% tolerance meets system accuracy targets and offers better cost/performance balance than the tighter-tolerance A-grade variant.
LM4050BEM3-10/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Shunt
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 10V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 50ppm/°C
- Noise - 0.1Hz to 10Hz:
- -
- Noise - 10Hz to 10kHz:
- 150µVrms
- Voltage - Input:
- -
- Current - Supply:
- -
- Current - Cathode:
- 110 µA
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
LM4050BEM3-10/NOPB FAQ
1.How can I place an order for LM4050BEM3-10/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4050BEM3-10/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 LM4050BEM3-10/NOPB reliable?
The price and inventory of LM4050BEM3-10/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4050BEM3-10/NOPB is usually 5 days.
3.What payment methods are accepted for LM4050BEM3-10/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4050BEM3-10/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4050BEM3-10/NOPB?
LM4050BEM3-10/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4050BEM3-10/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 LM4050BEM3-10/NOPB?
For technical support, including LM4050BEM3-10/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4050BEM3-10/NOPB requirements.
6.How does Aetrix verify that LM4050BEM3-10/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4050BEM3-10/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 LM4050BEM3-10/NOPB meets industry standards.
7.What is the process for return or replacement of LM4050BEM3-10/NOPB?
All LM4050BEM3-10/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4050BEM3-10/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 LM4050BEM3-10/NOPB part is unused and in its original packaging.
Return procedure for LM4050BEM3-10/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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