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Texas Instruments LM4040BIM3X-10/NOPB
- Part No.:
- LM4040BIM3X-10/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
LM4040BIM3X-10/NOPB.pdf
- Description:
- IC VREF SHUNT 0.2% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,720
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Product details
Overview
LM4040BIM3X-10/NOPB from Texas Instruments is a precision micropower shunt voltage reference with 10V nominal reverse breakdown voltage, ±0.2% initial tolerance (Grade B), and 100ppm/°C max temperature coefficient. It operates from 100μA to 15mA 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 LM4040BIM3X-10/NOPB datasheet, LM4040BIM3X-10/NOPB pinout, LM4040BIM3X-10/NOPB application, or LM4040BIM3X-10/NOPB equivalent, key selection criteria include shunt reference accuracy under varying load current (±0.8mV typical ΔVR/ΔIR at 100μA–1mA), low 35μVrms wideband noise (10Hz–10kHz), and SOT-23 package compatibility with space-constrained PCB layouts.
Technical Context
The LM4040BIM3X-10/NOPB implements a Zener-zap trimmed bandgap-shunt architecture with curvature-corrected temperature drift compensation. Its dynamic impedance is 0.8Ω at 1mA, enabling stable regulation across capacitive loads without external stabilization.
It delivers fixed 10V reverse breakdown voltage with Grade B tolerance (±0.2% at 25°C) and supports industrial temperature operation (−40°C to +85°C). Minimum operating current is 100μA, and maximum is 15mA-optimized for low-power sensor signal conditioning and ADC reference buffering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Breakdown Voltage | 10.0 V ±0.2% (Grade B, 25°C); enables precise 10V reference for 12-bit+ ADCs |
| Temperature Coefficient | ≤100 ppm/°C (max); ensures ≤±7.5 mV drift over −40°C to +85°C |
| Operating Current Range | 100 μA to 15 mA; supports ultra-low-power sensor biasing and high-current reference buffering |
| Output Noise (10Hz–10kHz) | 35 μVrms; minimizes quantization error in precision data acquisition systems |
| Dynamic Impedance | 0.8 Ω (at 1mA); maintains regulation stability with fast load transients |
| Thermal Hysteresis | 0.08% (ΔT = −40°C to +125°C); guarantees repeatable voltage after thermal cycling |
Pinout & Package
SOT-23 (DBZ) package: 3-pin surface-mount, 2.92mm × 1.30mm body size, JEDEC MO-178 compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 2) | Reference ground node | Connected to system ground; establishes cathode-to-anode potential difference |
| Cathode (Pin 1) | Shunt current sink / output terminal | Delivers regulated 10V relative to anode; sinks all load and excess current |
| NC (Pin 3) | No-connect terminal | Must float or connect to anode per TI EMI mitigation guidance; not electrically active |
Key Features
| Feature | Design Value |
|---|---|
| No external capacitor required | Internal stability design eliminates need for output bypass cap-reduces BOM count and layout area |
| Tolerates capacitive loads | Stable with any value of output capacitance-simplifies filtering in noisy industrial environments |
| Zener-zap voltage trim | Fuse-based wafer-sort trimming achieves ±0.2% initial accuracy without post-package adjustment |
| Low quiescent current | 100μA minimum operating current enables use in battery-powered field instruments |
| AEC-Q100 qualified (Grade 3) | Validated for automotive applications up to +85°C ambient-supports infotainment and body control modules |
Applications
| Field Transmitters | Data Acquisition |
|---|---|
Use Scenario: 4–20mA loop-powered pressure/temperature transmitter with microcontroller-based signal processing. IC Role / Device Role / Timing Role: Shunt reference providing stable 10V excitation for bridge sensors and ADC reference voltage. Use Value: Enables <12ppm total error over temperature due to 100ppm/°C TC and 0.08% thermal hysteresis. | Use Scenario: Industrial PLC analog input module measuring 0–10V process signals with 16-bit SAR ADC. IC Role / Device Role / Timing Role: Precision 10V reference for ADC full-scale calibration and ratiometric sensor scaling. Use Value: 35μVrms noise contributes <0.035 LSB error in 16-bit 10V FS system, preserving ENOB. |
| Energy Infrastructure | Analog Input Module |
Use Scenario: Smart meter voltage monitoring channel with isolation and anti-tampering circuitry. IC Role / Device Role / Timing Role: Isolated-side shunt reference supplying accurate 10V to isolated ADC and voltage supervisor. Use Value: 100μA–15mA operating range accommodates variable load from optocoupler drivers to ADC bias networks. | Use Scenario: Modular I/O system with hot-swappable analog input cards supporting multiple sensor types. IC Role / Device Role / Timing Role: Local 10V reference per channel to eliminate shared-reference crosstalk and ground-loop errors. Use Value: SOT-23 footprint allows dense channel packing while maintaining ±0.2% initial accuracy across production lots. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TL431CDBZR | Adjustable 2.5V–36V output; 2% initial tolerance; higher 0.2Ω dynamic impedance | Requires two external resistors; less suitable for fixed 10V precision use | Choose when adjustable reference or higher voltage (>10V) is needed; avoid for <0.5% accuracy requirements |
| MAX6126AASA10+ | 10V series reference; ±0.06% initial accuracy; 3ppm/°C TC; 1.2mA quiescent current | Series topology requires input headroom; not a drop-in shunt replacement | Choose for ultra-high accuracy (<0.1%) and low TC; only if supply rail ≥11.2V is available |
Compared with TL431CDBZR and MAX6126AASA10+, the LM4040BIM3X-10/NOPB offers optimal balance of fixed 10V accuracy (±0.2%), ultra-low 100μA start-up current, and true shunt simplicity-making it ideal for space- and power-constrained industrial sensing where external resistor networks or extra supply margin are impractical.
Availability
LM4040BIM3X-10/NOPB is available at Aetrix Electronics and suitable for field transmitters, energy infrastructure monitoring, and analog input modules requiring stable component supply with long-term calibration integrity.
Supply support for LM4040BIM3X-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 company specializing in analog and embedded processing technologies, with leadership in precision analog ICs and automotive-grade components.
The LM4040-N product line delivers micropower shunt references for space-critical, low-drift applications-including industrial automation, automotive subsystems, and portable instrumentation-where fixed-voltage accuracy and minimal external components are essential.
FAQ
What is the guaranteed initial accuracy of LM4040BIM3X-10/NOPB at 25°C?
The LM4040BIM3X-10/NOPB has a guaranteed initial reverse breakdown voltage tolerance of ±0.2% at 25°C (Grade B), corresponding to ±20 mV around the nominal 10.0 V output. This is verified 100% at wafer sort using Zener-zap trimming and documented in Section 5.21 of the official datasheet.
Does LM4040BIM3X-10/NOPB require an external capacitor for stability?
No, the LM4040BIM3X-10/NOPB does not require an external output capacitor. Its internal design ensures stability with any capacitive load, including direct connection to ADC reference inputs or op-amp feedback nodes-eliminating board space and cost associated with external stabilization components.
What is the minimum operating current for LM4040BIM3X-10/NOPB?
The LM4040BIM3X-10/NOPB requires a minimum operating current of 100 μA at 25°C to maintain regulation within specification. This value increases slightly over temperature but remains ≤120 μA across the full −40°C to +85°C industrial range, enabling use in ultra-low-power sensor interfaces.
Is LM4040BIM3X-10/NOPB qualified for automotive applications?
The LM4040BIM3X-10/NOPB is not AEC-Q100 qualified. Only the LM4040BQIM3X-10/NOPB variant carries AEC-Q100 Grade 3 qualification (−40°C to +85°C). The 'Q' suffix denotes automotive qualification; standard LM4040BIM3X-10/NOPB is rated for industrial temperature range only.
What package type is used for LM4040BIM3X-10/NOPB?
The LM4040BIM3X-10/NOPB uses the SOT-23 (DBZ) package: a 3-pin surface-mount outline with 2.92mm × 1.30mm body size, JEDEC MO-178 compliant, and marked with "B10" laser top-side marking per TI's SOT-23 marking standard.
LM4040BIM3X-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:
- ±0.2%
- 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
LM4040BIM3X-10/NOPB FAQ
1.How can I place an order for LM4040BIM3X-10/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4040BIM3X-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 LM4040BIM3X-10/NOPB reliable?
The price and inventory of LM4040BIM3X-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 LM4040BIM3X-10/NOPB is usually 5 days.
3.What payment methods are accepted for LM4040BIM3X-10/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4040BIM3X-10/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4040BIM3X-10/NOPB?
LM4040BIM3X-10/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4040BIM3X-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 LM4040BIM3X-10/NOPB?
For technical support, including LM4040BIM3X-10/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4040BIM3X-10/NOPB requirements.
6.How does Aetrix verify that LM4040BIM3X-10/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4040BIM3X-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 LM4040BIM3X-10/NOPB meets industry standards.
7.What is the process for return or replacement of LM4040BIM3X-10/NOPB?
All LM4040BIM3X-10/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4040BIM3X-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 LM4040BIM3X-10/NOPB part is unused and in its original packaging.
Return procedure for LM4040BIM3X-10/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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