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Texas Instruments LM4040DIM3-10.0/NOPB
- Part No.:
- LM4040DIM3-10.0/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
LM4040DIM3-10.0/NOPB.pdf
- Description:
- IC VREF SHUNT 1% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:20,223
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Product details
Overview
LM4040DIM3-10.0/NOPB from Texas Instruments is a precision micropower shunt voltage reference in SOT-23-3 package, delivering a fixed 10.0 V reverse breakdown voltage with ±1% initial tolerance (Grade D), 100 μA minimum operating current, and 15 mA maximum operating current. It operates across −40°C to +85°C (Industrial Grade) and is used in analog input modules, field transmitters, and energy infrastructure systems requiring stable, low-drift reference voltage.
For engineers reviewing the LM4040DIM3-10.0/NOPB datasheet, LM4040DIM3-10.0/NOPB pinout, LM4040DIM3-10.0/NOPB application, or LM4040DIM3-10.0/NOPB equivalent, key selection criteria include its 10 V output accuracy, temperature coefficient of ±150 ppm/°C over temperature, no-output-capacitor requirement, capacitive load tolerance, and SOT-23 footprint compatibility with space-constrained PCB layouts.
Technical Context
The LM4040DIM3-10.0/NOPB implements a trimmed Zener-based shunt reference architecture with bandgap temperature drift curvature correction. Its dynamic impedance is ≤1.1 Ω at 1 mA, enabling stable regulation under varying load currents from 100 μA to 15 mA.
It achieves ±1% initial voltage tolerance via wafer-level Zener-zap trimming and supports operation without external stabilization capacitors while maintaining stability with any capacitive load - a critical advantage for high-noise industrial and automotive environments where layout parasitics are difficult to control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 10.0 V nominal reverse breakdown voltage, fixed and factory-trimmed - eliminates need for external resistor networks or calibration. |
| Initial Tolerance | ±1% (Grade D) at 25°C - corresponds to ±100 mV absolute error, suitable for mid-accuracy data acquisition and sensor signal conditioning. |
| Temp Coefficient | ±150 ppm/°C max over −40°C to +85°C - contributes ≤±12.5 mV drift across full industrial range, enabling stable ADC reference performance. |
| Operating Current | 100 μA to 15 mA - ultra-low minimum current enables use in battery-powered field instruments; wide range simplifies series resistor selection. |
| Dynamic Impedance | ≤1.1 Ω at 1 mA - ensures minimal output voltage shift under transient load changes, critical for precision analog front-ends. |
| Wideband Noise | 35 μVrms (10 Hz–10 kHz) - low noise preserves SNR in high-resolution measurement systems without additional filtering. |
| Thermal Hysteresis | 0.08% - <8 mV hysteresis after thermal cycling, supporting repeatable measurements in cyclic environmental conditions. |
Pinout & Package
SOT-23-3 (DBZ) package: 2.92 mm × 1.30 mm body, surface-mount, JEDEC-standard footprint. Anode grounded, cathode supplies regulated 10.0 V reference node.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Cathode) | Shunt current sink / output node | Connects to series resistor and load; carries all reference current - must be routed with low-inductance trace for stability. |
| 2 (Anode) | Ground reference terminal | Internally connected to substrate ground; must be tied to clean system ground plane to minimize noise coupling and thermal gradients. |
| 3 (NC) | No-connect terminal | Not bonded internally; leave floating or tie to pin 2 per TI recommendation in EMI-sensitive applications - avoids unintended parasitic paths. |
Key Features
| Feature | Design Value |
|---|---|
| No output capacitor required | Enables direct integration into compact, low-BOM-count designs - eliminates capacitor aging, leakage, and board area overhead. |
| Tolerates capacitive loads | Stable with >100 nF load capacitance - supports direct buffering with op-amps or driving SAR ADC sample capacitors without oscillation. |
| Zener-zap voltage trim | Ensures ±1% initial accuracy at wafer sort - reduces post-assembly calibration steps and improves manufacturing yield. |
| Bandgap temperature drift correction | Compensates curvature error across −40°C to +85°C - delivers tighter effective TC than basic Zener references. |
| Low dynamic impedance | ≤1.1 Ω maintains <1 mV load regulation error from 100 μA to 15 mA - simplifies biasing of downstream precision circuitry. |
Applications
| Field Transmitter | Energy Infrastructure |
|---|---|
Use Scenario: 4–20 mA loop-powered sensor transmitter in oil & gas wellhead monitoring. IC Role / Device Role / Timing Role: Shunt voltage reference for DAC output scaling and current loop compliance voltage generation. Use Value: 10.0 V output enables precise 20 mA full-scale current setting with <±0.2% total error contribution from reference drift and noise. |
Use Scenario: Smart meter voltage sensing channel with isolation and anti-tampering requirements. IC Role / Device Role / Timing Role: Primary reference for isolated sigma-delta ADC measuring phase-to-phase grid voltage. Use Value: ±150 ppm/°C TC and 35 μVrms noise ensure <0.1% metering accuracy across outdoor temperature extremes. |
| Analog Input Module | Automotive Body Control |
Use Scenario: Industrial PLC analog input card accepting ±10 V sensor signals. IC Role / Device Role / Timing Role: Reference for programmable gain instrumentation amplifier and 16-bit SAR ADC. Use Value: No-output-capacitor design allows placement adjacent to ADC without stability risk; SOT-23 footprint saves board space in dense I/O modules. |
Use Scenario: Cabin temperature sensor interface in HVAC control unit with extended temperature qualification. IC Role / Device Role / Timing Role: Stable 10 V reference for thermistor voltage divider and microcontroller ADC. Use Value: Industrial-grade −40°C to +85°C operation ensures reliability in under-hood and cabin environments without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM4040CIM3-10.0/NOPB | ±0.5% initial tolerance (Grade C), same 10 V output and SOT-23 package | Better accuracy for higher-end data loggers or calibrated test equipment | Select when tighter initial voltage error (<±50 mV) justifies cost premium over Grade D. |
| TL431ACDBVR | Adjustable 2.5–36 V output, 2% initial tolerance, higher 1 mA min current, SO-8 package | Requires external resistors; less accurate but more flexible for multi-voltage systems | Choose when design requires programmable reference voltage or higher current drive capability (>15 mA). |
Compared with LM4040CIM3-10.0/NOPB, the LM4040DIM3-10.0/NOPB trades 0.5% accuracy for lower cost and sufficient stability for industrial sensing; versus TL431ACDBVR, it offers fixed 10 V output, lower quiescent current, smaller footprint, and no external components - ideal for dedicated high-volume 10 V reference nodes.
Availability
LM4040DIM3-10.0/NOPB is available at Aetrix Electronics and suitable for field transmitters, energy infrastructure meters, and analog input modules requiring stable component supply with consistent parametric performance across production batches.
Supply support for LM4040DIM3-10.0/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 automotive-qualified components.
The LM4040-N product line delivers micropower shunt voltage references optimized for space-constrained, low-power industrial and automotive applications - emphasizing accuracy, thermal stability, and ease of use without external compensation.
FAQ
What is the operating temperature range for LM4040DIM3-10.0/NOPB?
The LM4040DIM3-10.0/NOPB is rated for industrial temperature operation from −40°C to +85°C. This range is validated per the LM4040-N datasheet Section 5.3 and applies specifically to the DIM3 variant with 10.0 V output and Grade D tolerance. It does not support extended −40°C to +125°C operation unless specified as Q1 automotive grade.
Does LM4040DIM3-10.0/NOPB require an external output capacitor?
No, the LM4040DIM3-10.0/NOPB does not require an external output capacitor. Its internal design ensures stability with any capacitive load, including direct connection to op-amp inputs or ADC sample capacitors - a key feature confirmed in the datasheet Section 3 and Figure 8-1 typical application schematic.
What is the minimum cathode current needed for regulation in LM4040DIM3-10.0/NOPB?
The LM4040DIM3-10.0/NOPB requires a minimum cathode current of 100 μA to maintain regulation at 10.0 V, as specified in Section 5.3 Recommended Operating Conditions and Table 5.6 for Grade D variants. Below this current, output voltage may deviate beyond guaranteed tolerance limits.
How does the pin 3 (NC) terminal affect LM4040DIM3-10.0/NOPB performance?
Pin 3 is a no-connect terminal in the SOT-23 package of LM4040DIM3-10.0/NOPB. TI recommends leaving it floating or connecting it to pin 2 (anode) in high-EMI environments - this mitigates noise coupling without altering electrical function, as documented in Table 4-1 and Figure 4-1 of the datasheet.
Is LM4040DIM3-10.0/NOPB RoHS compliant and lead-free?
Yes, LM4040DIM3-10.0/NOPB is RoHS compliant and lead-free. The "/NOPB" suffix explicitly denotes "No Lead (Pb)-Free", confirming compliance with EU RoHS Directive 2011/65/EU and TI's green packaging standards, as verified in TI's official orderable part documentation and packaging addendum.
LM4040DIM3-10.0/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:
- ±1%
- Temperature Coefficient:
- 150ppm/°C
- Noise - 0.1Hz to 10Hz:
- -
- Noise - 10Hz to 10kHz:
- 180µVrms
- Voltage - Input:
- -
- Current - Supply:
- -
- Current - Cathode:
- 110 µA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
LM4040DIM3-10.0/NOPB FAQ
1.How can I place an order for LM4040DIM3-10.0/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4040DIM3-10.0/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 LM4040DIM3-10.0/NOPB reliable?
The price and inventory of LM4040DIM3-10.0/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4040DIM3-10.0/NOPB is usually 5 days.
3.What payment methods are accepted for LM4040DIM3-10.0/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4040DIM3-10.0/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4040DIM3-10.0/NOPB?
LM4040DIM3-10.0/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4040DIM3-10.0/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 LM4040DIM3-10.0/NOPB?
For technical support, including LM4040DIM3-10.0/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4040DIM3-10.0/NOPB requirements.
6.How does Aetrix verify that LM4040DIM3-10.0/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4040DIM3-10.0/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 LM4040DIM3-10.0/NOPB meets industry standards.
7.What is the process for return or replacement of LM4040DIM3-10.0/NOPB?
All LM4040DIM3-10.0/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4040DIM3-10.0/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 LM4040DIM3-10.0/NOPB part is unused and in its original packaging.
Return procedure for LM4040DIM3-10.0/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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