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Texas Instruments LM4040DIM3-10.0
- Part No.:
- LM4040DIM3-10.0
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
LM4040DIM3-10.0.pdf
- Description:
- IC VREF SHUNT 1% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:852
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Product details
Overview
LM4040DIM3-10.0 from Texas Instruments is a precision micropower shunt voltage reference with 10.0 V nominal reverse breakdown voltage, ±1.0% initial tolerance (Grade D), 100 μA minimum operating current, and 15 mA maximum operating current. It operates across −40°C to +85°C and delivers stable reference voltage for ADC biasing in portable data acquisition systems.
For engineers reviewing the LM4040DIM3-10.0 datasheet, LM4040DIM3-10.0 pinout, LM4040DIM3-10.0 application, or LM4040DIM3-10.0 equivalent, this page provides verified electrical specifications, SOT-23 package terminal mapping, industrial-grade temperature performance, and validated alternative parts for voltage reference design validation and BOM optimization.
Technical Context
The LM4040DIM3-10.0 uses Zener-zap trimming during wafer sort to achieve ±1.0% initial accuracy at 25°C and incorporates bandgap curvature correction for low temperature drift. Its dynamic impedance remains below 1.1 Ω at 1 mA, enabling stable regulation under varying load conditions.
Designed as a two-terminal shunt device, it requires no output capacitor and tolerates capacitive loads up to 10 nF. The 100 ppm/°C max temperature coefficient ensures ≤±0.65% total voltage deviation over −40°C to +85°C industrial range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Voltage | 10.0 V reverse breakdown voltage - sets precise reference point for analog signal conditioning and ADC calibration |
| Initial Tolerance | ±1.0% at 25°C (Grade D) - enables single-point calibration in mid-accuracy instrumentation |
| Operating Current Range | 100 μA to 15 mA - supports ultra-low-power sensor nodes and high-current reference buffering |
| Temp Coefficient | ≤100 ppm/°C - limits voltage drift to ±65 mV over −40°C to +85°C |
| Dynamic Impedance | ≤1.1 Ω at 1 mA - maintains regulation stability against fast load transients |
| Wideband Noise | 35 μVrms (10 Hz–10 kHz) - minimizes noise contribution in precision measurement front-ends |
| Long-Term Stability | 120 ppm after 1000 hrs - ensures reference integrity in field-deployed energy metering systems |
Pinout & Package
SOT-23 (DBZ) 3-pin surface-mount package, body size 2.92 mm × 1.30 mm, rated for 306 mW power dissipation at 25°C ambient.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 2) | Reference ground node | Must be connected to system ground; defines cathode voltage relative to GND |
| Cathode (Pin 1) | Shunt current input / output voltage node | Supplies regulated 10.0 V to external circuitry; sinks all operating current |
| NC (Pin 3) | No-connect terminal | Internally unconnected; must float or tie to Anode (Pin 2) per TI specification |
Key Features
| Feature | Design Value |
|---|---|
| No output capacitor required | Eliminates external stabilization components, reducing PCB area and BOM count in space-constrained designs |
| Tolerates capacitive loads | Stable operation with up to 10 nF load capacitance - simplifies filtering without risk of oscillation |
| Micropower operation | 100 μA minimum current enables battery life extension in portable test equipment and IoT sensors |
| Industrial temperature range | −40°C to +85°C operation supports deployment in factory automation and outdoor monitoring systems |
| Zener-zap trimmed accuracy | Guaranteed ±1.0% initial tolerance eliminates need for post-solder calibration in production test fixtures |
Applications
| Portable Data Acquisition | Energy Metering Systems |
|---|---|
Use Scenario: Battery-powered handheld multimeter measuring AC/DC voltage and current with 16-bit SAR ADC. IC Role / Device Role / Timing Role: Shunt reference providing stable 10.0 V reference for ADC full-scale calibration and analog front-end gain setting. Use Value: Enables ±0.5% measurement accuracy over temperature without recalibration, extending field service intervals. |
Use Scenario: DIN-rail mounted three-phase electricity meter performing real-time kWh calculation. IC Role / Device Role / Timing Role: Precision voltage reference for metrology-grade ADCs sampling current transformers and potential dividers. Use Value: Maintains <±0.2% reference drift over 10-year lifetime, meeting IEC 62053-21 Class 0.5S accuracy requirements. |
| Process Control Transmitters | Automotive Diagnostic Tools |
Use Scenario: 4–20 mA loop-powered pressure transmitter with HART digital overlay. IC Role / Device Role / Timing Role: Reference source for DAC generating 4–20 mA current output and internal ADC monitoring supply rail. Use Value: Ensures loop current accuracy remains within ±0.1% FSR across −40°C to +85°C ambient, satisfying ISA-S50 compliance. |
Use Scenario: Handheld OBD-II scanner verifying vehicle sensor voltages (TPS, MAP, ECT) against known reference levels. IC Role / Device Role / Timing Role: Stable 10.0 V reference for internal ADC measuring analog sensor outputs with traceable accuracy. Use Value: Delivers diagnostic voltage readings accurate to ±5 mV, enabling reliable fault code interpretation per SAE J1978. |
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 | ±0.5% initial tolerance, 50 μA min current, same SOT-23 package | Better accuracy but higher minimum current requirement limits ultra-low-power use cases | Select when tighter initial tolerance justifies increased quiescent current budget |
| MAX6008AEUR+T | ±0.2% initial tolerance, 60 μA min current, SC70-3 package | Higher accuracy and lower tempco (50 ppm/°C), but smaller SC70 footprint increases soldering complexity | Choose for space-constrained designs requiring sub-0.5% total error over temperature |
Compared with LM4040DIM3-10.0, TL4050C10IDBZR offers improved accuracy at higher minimum current, while MAX6008AEUR+T delivers superior stability in smaller form factor - both require layout review due to differing thermal and package constraints.
Availability
LM4040DIM3-10.0 is available at Aetrix Electronics and suitable for portable instrumentation, industrial process control, and automotive diagnostic equipment requiring stable component supply and long-term parametric consistency.
Supply support for LM4040DIM3-10.0 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
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in precision reference design.
The LM4040-N product line delivers micropower shunt references optimized for space-constrained, battery-operated, and industrial-grade measurement systems where accuracy, stability, and reliability are critical.
FAQ
What is the guaranteed initial voltage tolerance for LM4040DIM3-10.0 at 25°C?
The LM4040DIM3-10.0 is specified with ±1.0% initial reverse breakdown voltage tolerance at 25°C (Grade D), corresponding to ±100 mV around the 10.0 V nominal value. This tolerance is production-tested and guaranteed per TI's SNOS633K datasheet Section 6.6.
Does LM4040DIM3-10.0 require an external output capacitor for stability?
No, the LM4040DIM3-10.0 does not require an external output capacitor. Its internal design ensures stability with any capacitive load up to 10 nF, eliminating the need for external compensation components in most applications.
What is the minimum operating current for LM4040DIM3-10.0, and why does it differ from lower-voltage variants?
The LM4040DIM3-10.0 requires a minimum operating current of 100 μA, higher than the 60 μA needed for the 2.5-V variant. This increase reflects the higher Zener voltage's greater junction leakage and threshold requirements for stable regulation.
Can LM4040DIM3-10.0 be used in automotive applications?
The LM4040DIM3-10.0 is rated for industrial temperature range (−40°C to +85°C) and is not AEC-Q200 qualified. For automotive use, TI recommends the LM4040-N-Q1 series (e.g., LM4040DQIM3-10.0), which carries AEC-Q100 Grade 3 qualification.
How does the LM4040DIM3-10.0 handle thermal hysteresis, and what is its typical value?
The LM4040DIM3-10.0 exhibits ≤0.08% thermal hysteresis - defined as the voltage difference measured at 25°C after cycling between −40°C and +125°C. This low hysteresis ensures repeatable reference performance in cyclic thermal environments like industrial enclosures.
LM4040DIM3-10.0 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:
- Obsolete
- 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 FAQ
1.How can I place an order for LM4040DIM3-10.0 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4040DIM3-10.0 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 LM4040DIM3-10.0 reliable?
The price and inventory of LM4040DIM3-10.0 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 is usually 5 days.
3.What payment methods are accepted for LM4040DIM3-10.0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4040DIM3-10.0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4040DIM3-10.0?
LM4040DIM3-10.0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4040DIM3-10.0 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 LM4040DIM3-10.0?
For technical support, including LM4040DIM3-10.0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4040DIM3-10.0 requirements.
6.How does Aetrix verify that LM4040DIM3-10.0 is sourced from the original manufacturer or authorized distributors?
All LM4040DIM3-10.0 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 LM4040DIM3-10.0 meets industry standards.
7.What is the process for return or replacement of LM4040DIM3-10.0?
All LM4040DIM3-10.0 units undergo pre-shipment inspection (PSI). If there is an issue with LM4040DIM3-10.0, 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 LM4040DIM3-10.0 part is unused and in its original packaging.
Return procedure for LM4040DIM3-10.0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM4040DIM3-10.0 Tags
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