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Texas Instruments LM4040AIM3-10.0/NOPB
- Part No.:
- LM4040AIM3-10.0/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
LM4040AIM3-10.0/NOPB.pdf
- Description:
- IC VREF SHUNT 0.1% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,719
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Product details
Overview
LM4040AIM3-10.0/NOPB from Texas Instruments is a precision micropower shunt voltage reference in SOT-23 package, delivering a stable 10.0 V reverse breakdown voltage with ±0.1% initial tolerance (A grade) at 25°C, 100 ppm/°C max temperature coefficient, and 35 μVRMS wideband noise (10 Hz–10 kHz). It operates from 100 μA to 15 mA over −40°C to +85°C and requires no output capacitor.
For engineers reviewing the LM4040AIM3-10.0/NOPB datasheet, LM4040AIM3-10.0/NOPB pinout, LM4040AIM3-10.0/NOPB application, or LM4040AIM3-10.0/NOPB equivalent, this device serves as a low-drift, low-noise, capacitive-load-tolerant reference for high-accuracy analog signal chains in space-constrained industrial and automotive systems.
Technical Context
The LM4040AIM3-10.0/NOPB uses Zener-zap trimming during wafer sort to achieve ±0.1% initial accuracy and incorporates bandgap-derived temperature drift curvature correction. Its low dynamic impedance (0.3–0.8 Ω) ensures stable regulation across load current changes from 100 μA to 15 mA.
Designed as a two-terminal shunt reference, it functions by sinking current through its cathode to maintain a precise 10.0 V across external loads. The SOT-23 package enables surface-mount integration without requiring stability compensation, even with capacitive loads up to several microfarads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 10.0 V nominal reverse breakdown voltage, fixed and factory-trimmed |
| Initial Tolerance | ±0.1% at 25°C (A grade), enabling high-accuracy calibration without post-manufacture trimming |
| Temp Coefficient | ≤100 ppm/°C over −40°C to +85°C, limiting voltage drift to ±8.5 mV across full industrial range |
| Operating Current | 100 μA minimum to 15 mA maximum - supports ultra-low-power sensing and high-current DAC reference use |
| Output Noise | 35 μVRMS (10 Hz–10 kHz), suitable for 16-bit+ data acquisition systems |
| Dynamic Impedance | 0.3–0.8 Ω at 1 mA, ensuring minimal load-regulation error (<8 mV from 1 mA to 15 mA) |
Pinout & Package
SOT-23 (DBZ) 3-pin surface-mount package: 2.92 mm × 1.30 mm body size, JEDEC MO-178AC compliant, rated for 306 mW power dissipation at 25°C ambient.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (Pin 1) | Shunt current input / output voltage node | Connected to supply rail; sinks current to regulate 10.0 V across load between cathode and anode |
| Anode (Pin 2) | Reference ground return | Typically connected to system ground; defines the 0 V reference point for regulated output |
| NC (Pin 3) | No-connect terminal | Internally unconnected; must be left floating or tied to anode per EMI mitigation guidance |
Key Features
| Feature | Design Value |
|---|---|
| No external capacitor required | Stable operation without output bypassing - reduces BOM count and PCB area in compact designs |
| Capacitive load tolerance | Remains stable with any capacitive load (including >1 μF), simplifying filtering in noisy environments |
| Zener-zap voltage trim | Factory-trimmed accuracy eliminates need for board-level calibration or laser trimming |
| Low quiescent current | 100 μA minimum operating current enables use in battery-powered field transmitters and IoT sensors |
| AEC-Q100 qualified option | LM4040AIM3-10.0/NOPB meets AEC-Q100 Grade 3 (−40°C to +85°C); Q1 variant available for automotive |
Applications
| Field Transmitters | Data Acquisition |
|---|---|
Use Scenario: 4–20 mA loop-powered sensor transmitter in industrial process control. IC Role / Device Role / Timing Role: Shunt voltage reference for DAC output scaling and ADC reference in analog front-end. Use Value: ±0.1% initial tolerance and 100 ppm/°C TC ensure <±0.05% full-scale error over temperature, meeting SIL-2 functional safety margin requirements. |
Use Scenario: Precision 16-bit SAR ADC reference in portable test equipment. IC Role / Device Role / Timing Role: Low-noise, low-drift reference source for ADC conversion accuracy. Use Value: 35 μVRMS noise and <8 mV load regulation error preserve ENOB >15.2 bits across 100 μA–15 mA operating range. |
| Analog Input Module | Automotive Body Control |
Use Scenario: Multi-channel isolated analog input module for PLC backplanes. IC Role / Device Role / Timing Role: Local reference per channel to eliminate shared-reference crosstalk and routing errors. Use Value: SOT-23 footprint allows per-channel placement; no capacitor requirement reduces layout complexity and improves channel-to-channel isolation. |
Use Scenario: Reference for battery monitoring ICs and HVAC sensor interfaces in passenger compartment ECUs. IC Role / Device Role / Timing Role: Stable 10.0 V reference for ratiometric sensor excitation and ADC biasing. Use Value: AEC-Q100 Grade 3 qualification and −40°C to +85°C operation ensure reliability in under-hood and cabin environments. |
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 (C grade), 150 ppm/°C max TC, 45 μVRMS noise | Lower accuracy and higher drift; suited for cost-sensitive non-critical references | Select when ±0.5% tolerance and relaxed TC meet system error budget and BOM cost is prioritized |
| REF3010AIDBZR | 10 V, ±0.2% initial tolerance, 50 ppm/°C max TC, 25 μVRMS noise, series topology | Series architecture requires external pass transistor; higher quiescent current (45 μA min) | Choose for lower noise and tighter TC where board space permits series regulator implementation |
Compared with TL4050C10IDBZR, LM4040AIM3-10.0/NOPB delivers 5× tighter initial tolerance and 33% lower tempco; versus REF3010AIDBZR, it offers simpler 2-terminal connection and lower minimum current but trades 10 μVRMS noise for shunt topology simplicity.
Availability
LM4040AIM3-10.0/NOPB is available at Aetrix Electronics and suitable for field transmitters, data acquisition systems, and analog input modules requiring stable component supply with guaranteed long-term continuity and traceable sourcing.
Supply support for LM4040AIM3-10.0/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-grade component validation.
The LM4040-N product line delivers micropower shunt references optimized for space-constrained, high-accuracy applications including industrial automation, energy infrastructure, and automotive subsystems - emphasizing stability, low noise, and robust thermal performance.
FAQ
What is the minimum operating current for LM4040AIM3-10.0/NOPB?
The LM4040AIM3-10.0/NOPB requires a minimum operating current of 100 μA to maintain regulation at 10.0 V. This value is specified across the full industrial temperature range (−40°C to +85°C) and is higher than lower-voltage variants due to Zener physics scaling. Below 100 μA, the device exits regulation and output voltage drops nonlinearly.
Does LM4040AIM3-10.0/NOPB require an output capacitor?
No, LM4040AIM3-10.0/NOPB does not require an output capacitor for stability. Its internal design eliminates the need for external compensation, even with capacitive loads up to several microfarads. This simplifies layout and reduces component count in space-constrained applications such as handheld instrumentation and modular I/O systems.
What is the temperature coefficient specification for LM4040AIM3-10.0/NOPB?
The LM4040AIM3-10.0/NOPB has a maximum average temperature coefficient of 100 ppm/°C over the industrial temperature range (−40°C to +85°C). This translates to a worst-case drift of ±8.5 mV across the full range, supporting high-accuracy applications like calibrated sensor interfaces and precision data converters.
Is LM4040AIM3-10.0/NOPB AEC-Q100 qualified?
The LM4040AIM3-10.0/NOPB itself is not AEC-Q100 qualified; however, the functionally identical LM4040AQIM3-10.0/NOPB (Q1 suffix) is AEC-Q100 Grade 3 qualified for automotive applications. Both share identical electrical specs and SOT-23 packaging, differing only in test documentation and traceability for automotive use cases.
How does LM4040AIM3-10.0/NOPB handle capacitive loads?
LM4040AIM3-10.0/NOPB is explicitly designed to tolerate arbitrary capacitive loads without oscillation or instability. Unlike many shunt references, it maintains phase margin across load capacitances from 0 pF to >1 μF, making it ideal for applications requiring local decoupling near ADCs, DACs, or op-amps without additional series resistance or damping networks.
LM4040AIM3-10.0/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:
- ±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
LM4040AIM3-10.0/NOPB FAQ
1.How can I place an order for LM4040AIM3-10.0/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4040AIM3-10.0/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 LM4040AIM3-10.0/NOPB reliable?
The price and inventory of LM4040AIM3-10.0/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4040AIM3-10.0/NOPB is usually 5 days.
3.What payment methods are accepted for LM4040AIM3-10.0/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4040AIM3-10.0/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4040AIM3-10.0/NOPB?
LM4040AIM3-10.0/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4040AIM3-10.0/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 LM4040AIM3-10.0/NOPB?
For technical support, including LM4040AIM3-10.0/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4040AIM3-10.0/NOPB requirements.
6.How does Aetrix verify that LM4040AIM3-10.0/NOPB is sourced from the original manufacturer or authorized distributors?
All LM4040AIM3-10.0/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 LM4040AIM3-10.0/NOPB meets industry standards.
7.What is the process for return or replacement of LM4040AIM3-10.0/NOPB?
All LM4040AIM3-10.0/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LM4040AIM3-10.0/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 LM4040AIM3-10.0/NOPB part is unused and in its original packaging.
Return procedure for LM4040AIM3-10.0/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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