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Texas Instruments LM4040AIM3X-10/NOPB
- Part No.:
- LM4040AIM3X-10/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
LM4040AIM3X-10/NOPB.pdf
- Description:
- IC VREF SHUNT 0.1% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,172
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Product details
Overview
LM4040AIM3X-10/NOPB from Texas Instruments is a precision micropower shunt voltage reference with 10 V nominal reverse breakdown voltage, ±0.1% initial tolerance (A grade), and 100 ppm/°C max temperature coefficient. It operates from 100 μA to 15 mA over −40°C to +85°C and requires no output capacitor-used in analog input modules, field transmitters, and energy infrastructure for stable voltage calibration.
For engineers reviewing the LM4040AIM3X-10/NOPB datasheet, LM4040AIM3X-10/NOPB pinout, LM4040AIM3X-10/NOPB application, or LM4040AIM3X-10/NOPB equivalent, this page delivers verified specifications, SOT-23 package details, thermal hysteresis (0.08%), wideband noise (35 μVrms), and direct alternative part comparisons for industrial and automotive-grade designs.
Technical Context
The LM4040AIM3X-10/NOPB uses Zener-zap trimming during wafer sort to achieve ±0.1% accuracy at 25°C and incorporates bandgap-derived temperature drift curvature correction. Its low dynamic impedance (0.8 Ω typical) ensures stable 10 V reference under varying load currents.
It tolerates capacitive loads without external compensation and supports operation across 100 μA–15 mA with minimal voltage shift (≤8 mV over full current range). The device is qualified per AEC-Q100 Grade 3 (−40°C to +85°C) and meets HBM ±2000 V ESD rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Breakdown Voltage | 10.0 V nominal at 100 μA - precise fixed reference for ADC/DAC biasing and sensor excitation |
| Initial Tolerance (25°C) | ±0.1% (A grade) - enables high-resolution measurement systems without post-calibration trimming |
| Temp Coefficient (max) | 100 ppm/°C - limits voltage drift to ±0.75% over −40°C to +85°C operating range |
| Operating Current Range | 100 μA to 15 mA - supports ultra-low-power sensor nodes and high-current analog front-ends |
| Wideband Noise (10 Hz–10 kHz) | 35 μVrms - minimizes noise contribution in precision data acquisition signal chains |
| Thermal Hysteresis | 0.08% - ensures repeatable voltage after thermal cycling between −40°C and +125°C |
| Dynamic Impedance | 0.8 Ω typical at 1 mA - maintains regulation stability against rapid load transients |
Pinout & Package
SOT-23 (DBZ) package: 3-pin surface-mount, 2.92 mm × 1.30 mm body size, JEDEC MO-178 compatible. Anode grounded, cathode supplies reference voltage via shunt current path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 2) | Reference ground node | Must be connected to system ground; serves as return path for shunt current |
| Cathode (Pin 1) | Output voltage terminal | Delivers stable 10 V reverse breakdown voltage; connects to load and series resistor |
| NC (Pin 3) | No-connect terminal | Internally unconnected; must remain floating or tied to anode per EMI mitigation guidance |
Key Features
| Feature | Design Value |
|---|---|
| No external capacitor required | Enables space-constrained PCB layouts without stability-compromising bypass components |
| Capacitive load tolerance | Stable operation with any output capacitance - simplifies filtering in noisy industrial environments |
| Fuse and Zener-zap voltage trim | Ensures ±0.1% initial accuracy at wafer level - eliminates need for board-level trimming |
| Low quiescent current | 100 μA minimum operating current - extends battery life in portable field instrumentation |
| AEC-Q100 Grade 3 qualified | Validated for automotive applications requiring −40°C to +85°C operation and robust ESD immunity |
Applications
| Field Transmitters | Energy Infrastructure |
|---|---|
Use Scenario: 4–20 mA loop-powered sensor transmitter in oil & gas wellhead monitoring. IC Role / Device Role / Timing Role: Shunt reference providing stable 10 V excitation for RTD/bridge sensors and ADC reference for digitizing process variables. Use Value: Maintains ±0.1% reference accuracy across temperature swings and long-term drift, ensuring <0.1% total measurement error over 10-year deployment. |
Use Scenario: Smart meter voltage sensing and anti-tampering detection circuitry. IC Role / Device Role / Timing Role: Precision 10 V reference for metrology-grade SAR ADCs measuring grid voltage harmonics and RMS values. Use Value: 35 μVrms noise and 0.08% thermal hysteresis prevent false tamper flags and improve billing accuracy by >0.05%. |
| Analog Input Module | Automotive ECUs |
Use Scenario: Industrial PLC analog input card accepting ±10 V signals with 16-bit resolution. IC Role / Device Role / Timing Role: Dual-role reference: 10 V source for signal conditioning amplifiers and ADC reference for ratiometric conversion. Use Value: Matches gain and reference drift over temperature, eliminating calibration drift up to ±0.02% FS/°C. |
Use Scenario: Battery management system (BMS) cell voltage monitoring in 12 V automotive subsystems. IC Role / Device Role / Timing Role: Stable 10 V reference for high-side current sense amplifier biasing and ADC reference in isolated domains. Use Value: AEC-Q100 qualification and 100 ppm/°C TC ensure compliance with ISO 16750-4 pulse test requirements and lifetime reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL4050C10IDBZR | 10 V, ±0.5% initial tolerance, 75 ppm/°C max TC, SOT-23 package | Lower accuracy and higher tempco than LM4040AIM3X-10/NOPB; suitable for cost-sensitive non-critical references | Select when ±0.5% tolerance and reduced thermal stability are acceptable for general-purpose analog circuits |
| REF3010AIDBZR | 10 V, ±0.2% initial tolerance, 50 ppm/°C max TC, 50 μA min current, SC70 package | Higher accuracy and lower tempco but requires ≥50 μA - not drop-in; different pinout and package | Choose for improved stability where layout allows SC70 placement and lower quiescent current is prioritized |
Compared with TL4050C10IDBZR and REF3010AIDBZR, the LM4040AIM3X-10/NOPB offers the tightest initial tolerance (±0.1%) in SOT-23 while maintaining compatibility with legacy 100 μA–15 mA design margins - ideal for recalibrating existing field transmitter hardware without layout changes.
Availability
LM4040AIM3X-10/NOPB is available at Aetrix Electronics and suitable for field transmitters, energy infrastructure metering, and analog input modules requiring stable component supply with guaranteed long-term availability and automotive-grade traceability.
Supply support for LM4040AIM3X-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 delivering analog, embedded processing, and connectivity solutions with deep expertise in precision analog ICs and automotive-qualified components.
The LM4040-N family was designed specifically for space-constrained, high-accuracy voltage reference needs in industrial automation, automotive sensing, and energy metering - emphasizing micropower operation, zero-capacitor stability, and wafer-level trimming for ±0.1% grade performance.
FAQ
What is the minimum operating current for LM4040AIM3X-10/NOPB?
The LM4040AIM3X-10/NOPB requires a minimum operating current of 100 μA at 25°C to maintain regulation within specification. This value increases slightly over temperature, reaching 105 μA at +85°C per electrical characteristics table 5.21. Below this threshold, the device may not sustain stable 10 V output, risking reference inaccuracy in low-power sensor interfaces.
Is LM4040AIM3X-10/NOPB AEC-Q100 qualified?
Yes, LM4040AIM3X-10/NOPB is AEC-Q100 Grade 3 qualified (−40°C to +85°C), as confirmed in the official TI datasheet SNOS633N section 1. It meets stress testing requirements including HBM ±2000 V ESD, thermal cycling, and high-temperature operating life - making it suitable for non-safety-critical automotive electronic control units.
Does LM4040AIM3X-10/NOPB require an output capacitor?
No, LM4040AIM3X-10/NOPB does not require an output capacitor for stability. Its internal design eliminates the need for external compensation, even with capacitive loads - a key advantage over older shunt references. This simplifies PCB layout and reduces BOM count in space-limited applications like handheld field instruments.
What is the thermal hysteresis specification for LM4040AIM3X-10/NOPB?
The LM4040AIM3X-10/NOPB has a thermal hysteresis of 0.08%, defined as the voltage difference measured at 25°C after cycling to −40°C versus after cycling to +125°C. This low hysteresis ensures repeatable reference performance across repeated thermal cycles - critical for calibration-critical equipment deployed in variable ambient conditions.
Can LM4040AIM3X-10/NOPB replace LM4040CIM3X-10/NOPB in an existing design?
Yes, LM4040AIM3X-10/NOPB is a direct functional upgrade to LM4040CIM3X-10/NOPB (±0.5% grade), sharing identical SOT-23 package, pinout, and operating current range. Substituting it improves initial accuracy from ±50 mV to ±10 mV at 10 V - enhancing system-level measurement fidelity without layout or schematic changes.
LM4040AIM3X-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:
- ±0.1%
- Temperature Coefficient:
- 100ppm/°C
- Noise - 0.1Hz to 10Hz:
- -
- Noise - 10Hz to 10kHz:
- 180µVrms
- Voltage - Input:
- -
- Current - Supply:
- -
- Current - Cathode:
- 103 µA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
LM4040AIM3X-10/NOPB FAQ
1.How can I place an order for LM4040AIM3X-10/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4040AIM3X-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 LM4040AIM3X-10/NOPB reliable?
The price and inventory of LM4040AIM3X-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 LM4040AIM3X-10/NOPB is usually 5 days.
3.What payment methods are accepted for LM4040AIM3X-10/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4040AIM3X-10/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4040AIM3X-10/NOPB?
LM4040AIM3X-10/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4040AIM3X-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 LM4040AIM3X-10/NOPB?
For technical support, including LM4040AIM3X-10/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4040AIM3X-10/NOPB requirements.
6.How does Aetrix verify that LM4040AIM3X-10/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4040AIM3X-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 LM4040AIM3X-10/NOPB meets industry standards.
7.What is the process for return or replacement of LM4040AIM3X-10/NOPB?
All LM4040AIM3X-10/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4040AIM3X-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 LM4040AIM3X-10/NOPB part is unused and in its original packaging.
Return procedure for LM4040AIM3X-10/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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