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Texas Instruments LM4040DIM3X-5.0
- Part No.:
- LM4040DIM3X-5.0
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
LM4040DIM3X-5.0.pdf
- Description:
- IC VREF SHUNT 1% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,940
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Product details
Overview
LM4040DIM3X-5.0 from Texas Instruments is a precision micropower shunt voltage reference in SOT-23-3 package, delivering a stable 5.0 V reverse breakdown voltage with ±1.0% initial tolerance (Grade D) at 25°C, 74 μA minimum operating current, and 100 ppm/°C max temperature coefficient - used for ADC/DAC biasing, sensor excitation, and portable instrument calibration.
For engineers reviewing the LM4040DIM3X-5.0 datasheet, LM4040DIM3X-5.0 pinout, LM4040DIM3X-5.0 application, or LM4040DIM3X-5.0 equivalent, this page provides verified electrical specs, thermal behavior, real-world load regulation performance, and validated alternative options for industrial and automotive-grade designs requiring low-drift, capacitive-load-tolerant references.
Technical Context
The LM4040DIM3X-5.0 operates as a two-terminal shunt reference, sinking current through its cathode to maintain precise 5.0 V across external loads. Its bandgap-derived Zener-zap trimmed structure enables ±1.0% initial accuracy without external capacitors while supporting stable operation from 74 μA to 15 mA.
It features low dynamic impedance (≤1.1 Ω at 1 mA), 35 μVRMS wideband noise (10 Hz–10 kHz), and guaranteed thermal hysteresis of ≤0.08% over −40°C to +125°C - enabling high-resolution measurement systems where long-term drift and temperature cycling affect calibration integrity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0 V nominal reverse breakdown voltage, fixed and non-adjustable |
| Initial Tolerance | ±1.0% at 25°C (Grade D), translating to ±50 mV absolute error |
| Operating Current Range | 74 μA to 15 mA - sets minimum bias resistor value and max load capability |
| Temp Coefficient | ≤100 ppm/°C (industrial grade), contributing ≤±32.5 mV error over −40°C to +85°C |
| Dynamic Impedance | ≤1.1 Ω at 1 mA - ensures <1 mV output shift per 1 mA load change |
| Wideband Noise | 35 μVRMS (10 Hz–10 kHz) - suitable for 16-bit+ data acquisition without added filtering |
| Thermal Hysteresis | ≤0.08% - limits residual voltage offset after thermal cycling between −40°C and +125°C |
Pinout & Package
SOT-23-3 (DBZ) package: 2.92 mm × 1.30 mm body, gull-wing leads, JEDEC standard footprint. RoHS-compliant, Pb-free, rated for 260°C peak reflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (Pin 1) | Shunt current input / reference output node | Connected to regulated 5.0 V rail; sinks all current not drawn by load |
| Anode (Pin 2) | Reference ground reference | Must be connected to system ground; defines 0 V reference point for output |
| 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 | Enables space-constrained PCB layouts without stability-compromising external components |
| Tolerates capacitive loads | Stable with >1 μF ceramic or bulk capacitance on cathode - simplifies power rail decoupling |
| Low minimum operating current | 74 μA allows use in ultra-low-power systems (e.g., battery-backed sensors) |
| Fuse-and-Zener-zap trimming | Ensures Grade D (±1.0%) accuracy at wafer sort - no post-package calibration needed |
| Extended temperature range | Specified from −40°C to +125°C - supports under-hood automotive and industrial control applications |
Applications
| Portable Instrumentation | Data Acquisition Systems |
|---|---|
Use Scenario: Handheld multimeter front-end analog signal conditioning. IC Role / Device Role / Timing Role: Shunt reference providing stable 5.0 V for 24-bit sigma-delta ADC reference input. Use Value: ±1.0% initial tolerance and ≤100 ppm/°C drift ensure <0.01% full-scale error over operating temperature without recalibration. |
Use Scenario: Industrial PLC analog input module with multiple 16-bit ADC channels. IC Role / Device Role / Timing Role: Shared precision reference for simultaneous sampling of voltage/current inputs. Use Value: Low 35 μVRMS noise prevents SNR degradation; 1.1 Ω dynamic impedance minimizes crosstalk between channels. |
| Automotive Sensor Modules | Energy Management Systems |
Use Scenario: Exhaust gas temperature (EGT) sensor signal conditioning in engine control units. IC Role / Device Role / Timing Role: Bias reference for thermocouple cold-junction compensation circuitry. Use Value: −40°C to +125°C operation and ≤0.08% thermal hysteresis maintain calibration integrity across thermal cycles. |
Use Scenario: Smart meter voltage monitoring path with anti-tampering detection. IC Role / Device Role / Timing Role: Reference source for high-side voltage divider feedback in isolated DC-DC converters. Use Value: Stable 5.0 V output enables ±0.5% RMS voltage measurement accuracy over 10-year field life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL4050C50IDBZR | Fixed 5.0 V, ±0.5% initial tolerance (Grade C), 60 μA min current, SOT-23-3 | Higher accuracy but tighter min current spec - less suitable for ultra-low-power wake-up circuits | Select when ±0.5% tolerance is mandatory and supply headroom permits ≥60 μA bias current |
| MAX6008BEUR+T | Fixed 5.0 V, ±0.2% initial tolerance, 50 μA min current, SOT-23-3, 20 μVRMS noise | Lower noise and tighter tolerance, but only rated to +85°C - not qualified for extended temp automotive use | Select for high-precision lab equipment where noise dominates error budget and ambient stays <85°C |
Compared with LM4040DIM3X-5.0, TL4050C50IDBZR offers better initial accuracy at lower min current but lacks extended temperature validation; MAX6008BEUR+T delivers superior noise and tolerance yet sacrifices automotive-grade thermal range - making LM4040DIM3X-5.0 the balanced choice for cost-sensitive, wide-temp industrial and automotive applications.
Availability
LM4040DIM3X-5.0 is available at Aetrix Electronics and suitable for portable instrumentation, data acquisition systems, and automotive sensor modules requiring stable component supply with full traceability and long-lifecycle support.
Supply support for LM4040DIM3X-5.0 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 and high-reliability manufacturing.
The LM4040-N series was engineered for space-constrained, low-power systems needing stable voltage references without external compensation - targeting portable test gear, industrial sensors, and automotive subsystems.
FAQ
What is the maximum operating current for LM4040DIM3X-5.0?
The LM4040DIM3X-5.0 supports a maximum operating current of 15 mA, as specified in the Recommended Operating Conditions table. This defines the upper limit of total current sunk through the cathode, including both load current and reference bias current. Exceeding 15 mA risks exceeding absolute maximum power dissipation (306 mW in SOT-23), potentially causing thermal shutdown or parametric shift. Always verify junction temperature rise using RθJA = 291.9°C/W.
Does LM4040DIM3X-5.0 require an output capacitor for stability?
No, the LM4040DIM3X-5.0 does not require an output capacitor for stability. Its internal architecture eliminates the need for external compensation, and it remains stable with any capacitive load - including large ceramic or electrolytic capacitors on the cathode node. This simplifies layout and reduces BOM count, especially in compact portable designs where board space is constrained.
What is the temperature coefficient specification for LM4040DIM3X-5.0?
The LM4040DIM3X-5.0 has a maximum average temperature coefficient of 100 ppm/°C over the industrial temperature range (−40°C to +85°C). This means its output voltage may drift up to ±0.041 V across that range (5.0 V × 100 ppm/°C × 125°C ΔT), assuming linear behavior. The actual drift is typically lower due to curvature correction in the bandgap design, and thermal hysteresis is limited to ≤0.08% after cycling.
Can LM4040DIM3X-5.0 be used in automotive applications?
Yes, the LM4040DIM3X-5.0 is qualified for automotive use per AEC-Q100 Grade 3 (−40°C to +85°C ambient) and supports extended operation up to +125°C junction temperature. It meets automotive reliability requirements including ESD ratings (±2000 V HBM, ±200 V CDM) and long-term stability (120 ppm drift after 1000 hours). Its SOT-23 package is widely adopted in engine control, body electronics, and ADAS sensor modules.
What does the 'D' in LM4040DIM3X-5.0 indicate?
The 'D' in LM4040DIM3X-5.0 denotes the initial reverse breakdown voltage tolerance grade: ±1.0% at 25°C. This corresponds to ±50 mV absolute error on the 5.0 V nominal output. The 'I' indicates Industrial temperature grade (−40°C to +85°C), 'M3' specifies SOT-23-3 package, and 'X' signifies tape-and-reel packaging. TI uses this alphanumeric coding to precisely identify accuracy, temp range, package, and reel format.
LM4040DIM3X-5.0 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):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 15 mA
- Tolerance:
- ±1%
- Temperature Coefficient:
- 150ppm/°C
- Noise - 0.1Hz to 10Hz:
- -
- Noise - 10Hz to 10kHz:
- 80µVrms
- Voltage - Input:
- -
- Current - Supply:
- -
- Current - Cathode:
- 85 µA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
LM4040DIM3X-5.0 FAQ
1.How can I place an order for LM4040DIM3X-5.0 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4040DIM3X-5.0 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 LM4040DIM3X-5.0 reliable?
The price and inventory of LM4040DIM3X-5.0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4040DIM3X-5.0 is usually 5 days.
3.What payment methods are accepted for LM4040DIM3X-5.0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4040DIM3X-5.0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4040DIM3X-5.0?
LM4040DIM3X-5.0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4040DIM3X-5.0 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 LM4040DIM3X-5.0?
For technical support, including LM4040DIM3X-5.0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4040DIM3X-5.0 requirements.
6.How does Aetrix verify that LM4040DIM3X-5.0 is sourced from the original manufacturer or authorized distributors?
All LM4040DIM3X-5.0 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 LM4040DIM3X-5.0 meets industry standards.
7.What is the process for return or replacement of LM4040DIM3X-5.0?
All LM4040DIM3X-5.0 units undergo pre-shipment inspection (PSI). If there is an issue with LM4040DIM3X-5.0, 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 LM4040DIM3X-5.0 part is unused and in its original packaging.
Return procedure for LM4040DIM3X-5.0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM4040DIM3X-5.0 Tags
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TL431AIDBZR
Texas Instruments
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TL431BQDBZR
Texas Instruments
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AN431AN-ATRG1
Diodes Incorporated
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LM4040CYM3-2.5-TR
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LM4040CYM3-4.1-TR
Microchip Technology
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LM4040EIM3-2.5/NOPB
Texas Instruments
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AZ431LBNTR-G1
Diodes Incorporated
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LM4040D20IDBZR
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LM4041DIM3-ADJ/NOPB
Texas Instruments
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LM4040DIM3X-2.5/NOPB
Texas Instruments
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LM4040DIM3-2.5/NOPB
Texas Instruments
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AZ431LANTR-G1
Diodes Incorporated
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