My Inquiry
My Account
Analog Devices Inc./Maxim Integrated LM4050AIX3-3.0
- Part No.:
- LM4050AIX3-3.0
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- SC-70, SOT-323
- Datasheet:
-
LM4050AIX3-3.0.pdf
- Description:
- LM4050 50PPM PER DEGREE CELSIUS
- Quantity:
- Payment:
- Shipping:
Inventory:1,521
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM4050AIX3-3.0 from Maxim Integrated is a precision 3.000V shunt voltage reference in SC70-3 package, featuring 0.1% initial accuracy, ±15ppm/°C temperature coefficient (max), and 60µA to 15mA operating current range. It delivers stable reverse breakdown voltage for ADC/DAC biasing, portable power monitoring, and battery management circuits where space and low quiescent current are critical.
For engineers reviewing the LM4050AIX3-3.0 datasheet, LM4050AIX3-3.0 pinout, LM4050AIX3-3.0 application, or LM4050AIX3-3.0 equivalent, key selection criteria include guaranteed -40°C to +125°C operation, no external capacitor requirement, 45µVRMS wideband noise (10Hz–10kHz), and compatibility with capacitive loads in high-density PCB layouts.
Technical Context
The LM4050AIX3-3.0 uses laser-trimmed bandgap architecture to maintain precise 3.000V reverse breakdown voltage across its cathode-anode terminals. Its internal BiCMOS design enables ultra-low dynamic impedance (0.3Ω typical at 1mA) and stable regulation without output capacitance.
It operates as a two-terminal shunt device: reverse-biased between supply and ground, sinking variable current to hold VR constant. Pin 3 is unconnected (N.C.) or tied to pin 2, eliminating forward conduction path ambiguity in layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.000V ±3.0mV at +25°C - ensures accurate 12-bit ADC reference without calibration. |
| Initial Accuracy | 0.1% (±3mV) - supports high-precision sensor signal chains and metrology-grade measurements. |
| Tempco | ±15ppm/°C max - guarantees ≤±1.8mV drift over -40°C to +125°C for industrial temperature stability. |
| Operating Current | 60µA to 15mA - enables micropower sleep modes and robust regulation under varying load conditions. |
| Dynamic Impedance | 0.3Ω typical at 1mA - minimizes output voltage perturbation during transient load changes. |
| Wideband Noise | 45µVRMS (10Hz–10kHz) - preserves SNR in precision analog front-ends and low-noise instrumentation. |
| Long-Term Stability | 120ppm over 1000h - reduces recalibration frequency in field-deployed equipment. |
Pinout & Package
LM4050AIX3-3.0 is housed in a 3-pin SC70 surface-mount package (1.8mm × 1.8mm), 50% smaller than SOT23-3. The package supports reflow soldering and high-density placement in portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (+) | Cathode | Reverse-bias input terminal; connects to unregulated supply rail via series resistor. |
| 2 (−) | Anode | Reference ground node; ties to system ground or low-impedance return path. |
| 3 (N.C.) | No Connection | Must be left floating or connected to pin 2; no internal bond wire - avoids parasitic leakage paths. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-small SC70-3 footprint | 1.8mm × 1.8mm area - saves >50% board space vs. SOT23-3 in wearables and IoT sensors. |
| No output capacitor required | Stable with any capacitive load - eliminates BOM cost and layout constraints for decoupling. |
| Guaranteed -40°C to +125°C operation | Full spec compliance across automotive under-hood and industrial control environments. |
| Low 45µVRMS noise | Enables <16-bit ENOB in precision data acquisition systems without external filtering. |
| Laser-trimmed accuracy | 0.1% tolerance achieved via on-die resistor trimming - eliminates post-assembly calibration. |
Applications
| Portable Power Monitoring | Battery Management Systems |
|---|---|
Use Scenario: Real-time voltage tracking of Li-ion cells in handheld medical devices. IC Role / Device Role / Timing Role: Shunt reference providing stable 3.000V基准 for ADC input scaling and state-of-charge calculation. Use Value: Enables ±0.5% cell voltage measurement accuracy across temperature, supporting safe charge termination. | Use Scenario: Precision voltage sensing in multi-cell EV battery packs. IC Role / Device Role / Timing Role: High-stability reference for isolated analog front-end ICs monitoring individual cell voltages. Use Value: Maintains <±2mV error over -40°C to +85°C, ensuring reliable overvoltage protection triggering. |
| Industrial Process Controllers | High-Density Data Acquisition Modules |
Use Scenario: Analog input conditioning in DIN-rail mounted PLC I/O modules. IC Role / Device Role / Timing Role: Reference source for 16-bit SAR ADCs digitizing 4–20mA loop signals. Use Value: 0.1% initial accuracy and ±15ppm/°C tempco meet IEC 61000-6-2 immunity requirements. | Use Scenario: Compact test equipment requiring multiple simultaneous analog channels. IC Role / Device Role / Timing Role: Per-channel reference for multiplexed ADC subsystems in portable oscilloscopes. Use Value: SC70-3 size allows one LM4050AIX3-3.0 per channel without increasing PCB layer count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLVH431AIDBZR | Adjustable (2.5V setpoint), 0.5% initial accuracy, higher 90ppm/°C tempco, SOT23-3 package | Requires external resistors for 3.0V setting; less stable over temperature | Choose when adjustable output or lower cost outweighs precision and thermal performance needs. |
| REF3030AIDBZR | 3.0V fixed, 0.2% initial accuracy, 50ppm/°C tempco, SC70-3, but 50µA min operating current | Higher minimum current limits ultra-low-power use cases; slightly lower accuracy grade | Prefer when long-term stability (50ppm/1000h) and lower noise (25µVRMS) are prioritized over absolute min current. |
Compared with TLVH431AIDBZR and REF3030AIDBZR, the LM4050AIX3-3.0 offers superior initial accuracy (0.1% vs. 0.5%/0.2%), tighter tempco (±15ppm/°C vs. 90ppm/°C/50ppm/°C), and lowest operating current floor (60µA), making it optimal for battery-critical, high-precision embedded systems.
Availability
LM4050AIX3-3.0 is available at Aetrix Electronics and suitable for portable medical devices, battery management systems, and industrial process controllers requiring stable component supply with full -40°C to +125°C specification guarantee.
Supply support for LM4050AIX3-3.0 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 demanding industrial, automotive, and communications applications.
The LM4050/LM4051 product line delivers micropower shunt references optimized for space-constrained, high-accuracy systems where minimal board area and guaranteed wide-temperature performance are essential.
FAQ
What is the guaranteed operating temperature range for LM4050AIX3-3.0?
The LM4050AIX3-3.0 is fully specified and guaranteed over -40°C to +125°C. All electrical parameters-including 3.000V output voltage, 0.1% initial accuracy, and ±15ppm/°C temperature coefficient-are validated across this full industrial temperature range per the datasheet's Electrical Characteristics tables.
Does LM4050AIX3-3.0 require an external output capacitor for stability?
No, the LM4050AIX3-3.0 does not require an external output capacitor. Its internal design ensures stability with any capacitive load, including direct connection to ADC reference inputs or large bulk capacitors-eliminating layout constraints and reducing BOM count.
What is the minimum operating current for LM4050AIX3-3.0, and why is it critical?
The LM4050AIX3-3.0 requires a minimum shunt current of 60µA to maintain regulation. Below this threshold, output voltage deviates from 3.000V; maintaining ≥60µA across all operating conditions ensures accuracy and prevents dropout in low-power sleep modes.
How is pin 3 used on the LM4050AIX3-3.0 SC70-3 package?
Pin 3 of the LM4050AIX3-3.0 is designated N.C. (No Connection). It must be left floating or connected directly to pin 2 (anode); it has no internal connection and serves only as a mechanical pad to improve thermal dissipation and package symmetry.
What is the wideband noise specification of LM4050AIX3-3.0, and how does it impact precision ADC applications?
The LM4050AIX3-3.0 exhibits 45µVRMS wideband noise (10Hz to 10kHz). This low noise floor preserves effective number of bits (ENOB) in 16-bit ADC systems, enabling high-fidelity signal acquisition without additional external filtering or averaging overhead.
LM4050AIX3-3.0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- SC-70, SOT-323
- 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:
- ±0.1%
- 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:
- SC-70-3
LM4050AIX3-3.0 FAQ
1.How can I place an order for LM4050AIX3-3.0 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4050AIX3-3.0 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 LM4050AIX3-3.0 reliable?
The price and inventory of LM4050AIX3-3.0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4050AIX3-3.0 is usually 5 days.
3.What payment methods are accepted for LM4050AIX3-3.0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4050AIX3-3.0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4050AIX3-3.0?
LM4050AIX3-3.0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4050AIX3-3.0 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 LM4050AIX3-3.0?
For technical support, including LM4050AIX3-3.0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4050AIX3-3.0 requirements.
6.How does Aetrix verify that LM4050AIX3-3.0 is sourced from the original manufacturer or authorized distributors?
All LM4050AIX3-3.0 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 LM4050AIX3-3.0 meets industry standards.
7.What is the process for return or replacement of LM4050AIX3-3.0?
All LM4050AIX3-3.0 units undergo pre-shipment inspection (PSI). If there is an issue with LM4050AIX3-3.0, 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 LM4050AIX3-3.0 part is unused and in its original packaging.
Return procedure for LM4050AIX3-3.0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM4050AIX3-3.0 Tags
-
TL431AIDBZR
Texas Instruments
-
TL431BQDBZR
Texas Instruments
-
AN431AN-ATRG1
Diodes Incorporated
-
LM4040CYM3-2.5-TR
Microchip Technology
-
LM4040CYM3-4.1-TR
Microchip Technology
-
LM4040EIM3-2.5/NOPB
Texas Instruments
-
AZ431LBNTR-G1
Diodes Incorporated
-
LM4040D20IDBZR
Texas Instruments
-
LM4041DIM3-ADJ/NOPB
Texas Instruments
-
LM4040DIM3X-2.5/NOPB
Texas Instruments
-
LM4040DIM3-2.5/NOPB
Texas Instruments
-
AZ431LANTR-G1
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
