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Analog Devices Inc./Maxim Integrated LM4050BIM3-3.0
- Part No.:
- LM4050BIM3-3.0
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
LM4050BIM3-3.0.pdf
- Description:
- LM4050 50PPM PER DEGREE CELSIUS
- Quantity:
- Payment:
- Shipping:
Inventory:2,304
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Product details
Overview
LM4050BIM3-3.0 from Maxim Integrated is a precision 3.000V shunt voltage reference in SC70-3 package, featuring ±6.0mV initial accuracy (0.2% grade), 50ppm/°C max temperature coefficient, and stable operation from 60µA to 15mA shunt current. It serves as a compact, low-noise reference in battery-powered analog signal chains and ADC/DAC biasing circuits.
For engineers reviewing the LM4050BIM3-3.0 datasheet, LM4050BIM3-3.0 pinout, LM4050BIM3-3.0 application, or LM4050BIM3-3.0 equivalent, key selection criteria include guaranteed -40°C to +125°C operation, no external capacitor requirement, ultra-low 45µVRMS wideband noise (10Hz–10kHz), and compatibility with capacitive loads in space-constrained portable systems.
Technical Context
The LM4050BIM3-3.0 uses a laser-trimmed bandgap core to deliver fixed 3.000V reverse breakdown voltage with ±15ppm/°C typical tempco and <1.0mV reverse dynamic impedance at 1mA. Its two-terminal shunt architecture eliminates need for external stabilization while maintaining regulation across 60µA–15mA operating current range.
Designed for high-reliability industrial and portable applications, it guarantees performance over full -40°C to +125°C ambient range without output capacitance, tolerates any capacitive load, and exhibits only 120ppm long-term stability after 1000 hours of operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.000V ±6.0mV at +25°C - ensures precise 3V reference for 12-bit+ ADCs and sensor excitation |
| Initial Accuracy | 0.2% grade - supports tight tolerance designs without post-calibration |
| Tempco | 50ppm/°C max - limits drift to ±6mV over full -40°C to +125°C range |
| Operating Current | 60µA to 15mA - enables micropower sleep modes and robust regulation under load transients |
| Output Noise | 45µVRMS (10Hz–10kHz) - minimizes noise contribution in precision measurement front-ends |
| Dynamic Impedance | 0.3Ω to 0.8Ω at 1mA - maintains voltage stability during rapid current changes |
| Long-Term Stability | 120ppm @ 1000h - ensures reference integrity in deployed industrial equipment |
Pinout & Package
LM4050BIM3-3.0 is housed in a 3-pin SC70 surface-mount package (1.8mm × 1.8mm), 50% smaller than SOT23. Pin 3 is NC and must be left floating or tied to Pin 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (+) | Anode / Cathode Input | Positive terminal of shunt reference; connects to supply rail via series resistor |
| Pin 2 (−) | Cathode / Anode Output | Negative terminal; provides stable 3.000V reference node to load |
| Pin 3 (N.C.) | No Connection | Must remain unconnected or shorted to Pin 2 - no internal function |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small SC70-3 package | 1.8mm × 1.8mm footprint - saves PCB area in handheld and wearable devices |
| No output capacitor required | Internally compensated - eliminates BOM cost and layout risk from external caps |
| Capacitive load tolerance | Stable with any output capacitance - simplifies filtering and bypassing design |
| Wide shunt current range | 60µA min ensures operation in ultra-low-power sleep states |
| Low wideband noise | 45µVRMS enables use in high-resolution data acquisition without added filtering |
Applications
| Portable Medical Sensors | Battery-Powered Data Loggers |
|---|---|
Use Scenario: Continuous glucose monitor with 16-bit ADC sampling analog sensor output. IC Role / Device Role / Timing Role: Provides stable 3.000V reference for ADC VREF input and op-amp biasing. Use Value: 0.2% initial accuracy and 50ppm/°C tempco ensure <±0.5 LSB error over temperature without calibration. | Use Scenario: Remote environmental sensor node powered by coin cell, logging temperature/humidity every 5 minutes. IC Role / Device Role / Timing Role: Supplies precision reference to low-power SAR ADC during brief active periods. Use Value: 60µA minimum operating current enables >10-year battery life while maintaining 3V accuracy. |
| Industrial Process Transmitters | Automotive Cabin Control Modules |
Use Scenario: 4–20mA loop-powered pressure transmitter operating from -40°C to +125°C. IC Role / Device Role / Timing Role: References DAC output driving current loop amplifier and sensor excitation circuit. Use Value: Guaranteed -40°C to +125°C operation and 120ppm long-term stability support 15-year field reliability. | Use Scenario: HVAC control module in vehicle dashboard with thermistor-based temperature sensing. IC Role / Device Role / Timing Role: Supplies reference voltage to microcontroller's internal ADC for cabin temperature measurement. Use Value: SC70-3 size fits dense automotive PCB layouts; no external capacitor reduces component count and failure modes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLVH431ACDBVR | Adjustable (2.5V setpoint), 0.5% initial accuracy, 90ppm/°C tempco, SOT23-3 | Requires external resistors to set 3.0V; higher tempco increases drift in wide-temp environments | Select when adjustable output or cost sensitivity outweighs precision and tempco requirements |
| ADR3430ARJZ-R7 | Fixed 3.0V, 0.1% initial accuracy, 10ppm/°C max tempco, SOT23-5 | Higher accuracy and lower tempco but larger 5-pin package and higher quiescent current (120µA min) | Select when highest stability is critical and board space allows SOT23-5 footprint |
Compared with TLVH431ACDBVR and ADR3430ARJZ-R7, the LM4050BIM3-3.0 offers optimal balance of SC70-3 size, 0.2% accuracy, 50ppm/°C tempco, and 60µA minimum current-making it ideal for space- and power-constrained industrial and portable systems where moderate precision suffices.
Availability
LM4050BIM3-3.0 is available at Aetrix Electronics and suitable for portable medical sensors, battery-powered data loggers, and industrial process transmitters requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for LM4050BIM3-3.0 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
Maxim Integrated (now part of Analog Devices) designs precision analog and mixed-signal ICs for industrial, automotive, and consumer applications, with emphasis on high-reliability, low-power, and miniaturized solutions.
The LM4050 series belongs to Maxim's precision shunt voltage reference product line, engineered specifically for space-critical, battery-operated, and high-temperature industrial systems demanding stable, capacitor-free references with guaranteed performance from -40°C to +125°C.
FAQ
What is the guaranteed operating temperature range for LM4050BIM3-3.0?
The LM4050BIM3-3.0 is fully specified and guaranteed over -40°C to +125°C ambient temperature. All electrical parameters-including output voltage, tempco, and dynamic impedance-are tested and warranted across this full industrial temperature range per Maxim's datasheet revision 3.
Does LM4050BIM3-3.0 require an external output capacitor for stability?
No, the LM4050BIM3-3.0 does not require an external output capacitor. Its internal compensation ensures stability with any capacitive load, eliminating the need for external components and reducing BOM cost and layout complexity in designs such as portable instrumentation and sensor nodes.
What is the minimum shunt current needed for LM4050BIM3-3.0 to maintain regulation?
The LM4050BIM3-3.0 requires a minimum shunt current of 60µA to maintain regulation at 3.000V output. This value is guaranteed across the full -40°C to +125°C temperature range and enables ultra-low-power operation in battery-backed or energy-harvesting applications.
How does the LM4050BIM3-3.0 compare to the LM4050AIM3-3.0 in terms of accuracy?
The LM4050BIM3-3.0 has 0.2% initial accuracy (±6.0mV), while the LM4050AIM3-3.0 offers tighter 0.1% accuracy (±3.0mV). Both share identical SC70-3 packaging, tempco (50ppm/°C max), and operating current range. Choose LM4050BIM3-3.0 when cost and performance trade-offs favor moderate precision with proven field reliability.
Can Pin 3 of LM4050BIM3-3.0 be left unconnected or must it be grounded?
Pin 3 of the LM4050BIM3-3.0 is marked N.C. (No Connection) and must either be left floating or connected directly to Pin 2 (−). It has no internal connection and grounding it separately may introduce noise or unintended paths; tying it to Pin 2 is electrically safe and commonly used in layout best practices.
LM4050BIM3-3.0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Reference Type:
- Shunt
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 50ppm/°C
- Noise - 0.1Hz to 10Hz:
- -
- Noise - 10Hz to 10kHz:
- 45µVrms
- Voltage - Input:
- -
- Current - Supply:
- -
- Current - Cathode:
- 67 µA
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
LM4050BIM3-3.0 FAQ
1.How can I place an order for LM4050BIM3-3.0 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4050BIM3-3.0 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 LM4050BIM3-3.0 reliable?
The price and inventory of LM4050BIM3-3.0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4050BIM3-3.0 is usually 5 days.
3.What payment methods are accepted for LM4050BIM3-3.0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4050BIM3-3.0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4050BIM3-3.0?
LM4050BIM3-3.0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4050BIM3-3.0 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 LM4050BIM3-3.0?
For technical support, including LM4050BIM3-3.0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4050BIM3-3.0 requirements.
6.How does Aetrix verify that LM4050BIM3-3.0 is sourced from the original manufacturer or authorized distributors?
All LM4050BIM3-3.0 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 LM4050BIM3-3.0 meets industry standards.
7.What is the process for return or replacement of LM4050BIM3-3.0?
All LM4050BIM3-3.0 units undergo pre-shipment inspection (PSI). If there is an issue with LM4050BIM3-3.0, 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 LM4050BIM3-3.0 part is unused and in its original packaging.
Return procedure for LM4050BIM3-3.0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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