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Texas Instruments LM4040DIM7-5.0
- Part No.:
- LM4040DIM7-5.0
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Reference
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LM4040DIM7-5.0.pdf
- Description:
- IC VREF SHUNT 1% SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,983
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Product details
Overview
LM4040DIM7-5.0 from Texas Instruments is a precision micropower shunt voltage reference in SC70-5 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 instrumentation power rails.
For engineers reviewing the LM4040DIM7-5.0 datasheet, LM4040DIM7-5.0 pinout, LM4040DIM7-5.0 application, or LM4040DIM7-5.0 equivalent, this page provides verified electrical specs, validated SC70-5 terminal mapping, confirmed industrial-grade (−40°C to +85°C) operation, and two production-ready alternative parts with documented functional trade-offs.
Technical Context
The LM4040DIM7-5.0 implements a Zener-based shunt reference architecture with bandgap temperature drift curvature correction and fuse/Zener-zap trimming at wafer sort to achieve ±1.0% initial accuracy. It operates across 74 μA–15 mA reverse current without requiring output capacitance.
Its low dynamic impedance (≤1.1 Ω at 1 mA/120 Hz), 35 μVrms wideband noise (10 Hz–10 kHz), and thermal hysteresis of 0.08% enable high-precision analog signal chains in battery-powered and space-constrained systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.0 V nominal reverse breakdown voltage - sets precise bias point for analog front-ends and data converters. |
| Initial Tolerance | ±1.0% at 25°C (Grade D) - ensures ≤±50 mV absolute error before temperature or load effects. |
| Temp Coefficient | Max 100 ppm/°C over −40°C to +85°C - contributes ≤±6.5 mV drift across full industrial range. |
| Min Operating Current | 74 μA - enables ultra-low-power operation in energy-harvesting and sleep-mode circuits. |
| Dynamic Impedance | ≤1.1 Ω at 1 mA - maintains voltage stability under fast load transients in precision measurement paths. |
| Wideband Noise | 35 μVrms (10 Hz–10 kHz) - supports 16-bit+ resolution in low-noise data acquisition systems. |
| Long-Term Stability | 120 ppm after 1000 hrs - guarantees <0.06% output drift over first year of operation. |
Pinout & Package
LM4040DIM7-5.0 is housed in a 5-pin SC70 (DCK) package measuring 2.00 mm × 1.25 mm, optimized for high-density PCB layouts and automated assembly. Pin 1 is Anode (ground reference), Pin 3 is Cathode (shunt current/output node), Pins 2, 4, and 5 are no-connect terminals per TI datasheet SNOS633K Rev K.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode | Ground reference terminal; must be connected to system ground for proper shunt regulation. |
| Pin 3 | Cathode | Shunt current input and regulated 5.0 V output node; connects to feedback resistor and load. |
| Pins 2, 4, 5 | No Connect | Internally unconnected; must remain floating or tied to ground per TI layout guidance. |
Key Features
| Feature | Design Value |
|---|---|
| No external capacitor required | Enables direct integration into compact, low-BOM-count designs without stability compensation. |
| Tolerates capacitive loads | Stable operation with >1 μF bypass caps - simplifies noise filtering in mixed-signal systems. |
| SC70-5 package | 2.00 mm × 1.25 mm footprint - saves >60% board area vs. TO-92 and supports fine-pitch routing. |
| Industrial temperature range | −40°C to +85°C operation - qualified for factory automation, test equipment, and outdoor sensors. |
| Zener-zap voltage trim | Ensures Grade D (±1.0%) accuracy at wafer level - eliminates post-package calibration cost. |
Applications
| Portable Instrumentation | Data Acquisition Systems |
|---|---|
Use Scenario: Handheld multimeter with 24-bit sigma-delta ADC and battery-powered operation. IC Role / Device Role / Timing Role: Shunt reference providing stable 5.0 V excitation for precision resistive sensor bridges and ADC reference input. Use Value: 74 μA min current and 35 μVrms noise enable >100 hr battery life while maintaining 0.01% measurement linearity. |
Use Scenario: Industrial PLC analog input module with multiple 16-bit SAR ADCs. IC Role / Device Role / Timing Role: Local 5.0 V reference for channel-specific ADCs, decoupled from noisy system rails. Use Value: ≤1.1 Ω dynamic impedance prevents cross-channel crosstalk during simultaneous sampling events. |
| Energy Management Sensors | Automotive Body Control Modules |
Use Scenario: Smart electricity meter using isolated current sensing and metrology SoC. IC Role / Device Role / Timing Role: Primary voltage reference for metrology ADC and internal LDO feedback divider. Use Value: 120 ppm long-term stability ensures <0.005% energy billing error accumulation over 5-year field life. |
Use Scenario: Door module with window lift control, ambient light sensing, and LIN communication. IC Role / Device Role / Timing Role: Precision 5.0 V reference for optical sensor signal conditioning and microcontroller ADC. Use Value: −40°C to +85°C rating and 100 ppm/°C tempco meet AEC-Q100 Grade 3 requirements for cabin electronics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM4040CIM7-5.0 | ±0.5% initial tolerance (Grade C), same SC70-5 package and 5.0 V output. | Better accuracy for metrology-grade systems; higher cost and tighter supply chain constraints. | Select when <±25 mV absolute error is required at 25°C and long-term drift budget allows Grade C's 100 ppm/°C spec. |
| TL4050C50IDBZR | ±0.5% tolerance, 5.0 V, SOT-23-3 package; lower 50 μA min current but higher 200 ppm/°C tempco. | Smaller 3-pin footprint but reduced thermal stability - suitable for cost-sensitive consumer IoT nodes. | Choose for space-constrained designs where 50 μA sleep current outweighs need for <100 ppm/°C performance. |
Compared with LM4040DIM7-5.0, LM4040CIM7-5.0 improves initial accuracy by 0.5% at the expense of tighter procurement controls, while TL4050C50IDBZR reduces board area and quiescent current but sacrifices thermal stability - making LM4040DIM7-5.0 optimal for industrial applications balancing accuracy, size, and temperature robustness.
Availability
LM4040DIM7-5.0 is available at Aetrix Electronics and suitable for portable instrumentation, data acquisition systems, and energy management sensors requiring stable component supply, consistent parametric performance, and long-lifecycle support.
Supply support for LM4040DIM7-5.0 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 over 50 years of innovation in precision analog ICs.
The LM4040-N product line delivers micropower shunt references for space- and power-constrained applications including portable test gear, sensor interfaces, and automotive body electronics - designed for accuracy, stability, and ease of use without external components.
FAQ
What is the operating temperature range for LM4040DIM7-5.0?
The LM4040DIM7-5.0 is rated for industrial temperature operation from −40°C to +85°C. This range is fully specified in the Electrical Characteristics table (Section 6.16 of SNOS633K Rev K) and applies to all Grade D variants in SC70 packaging. The device maintains its ±1.0% initial tolerance and 100 ppm/°C max temperature coefficient across this full range.
Does LM4040DIM7-5.0 require an external capacitor for stability?
No, LM4040DIM7-5.0 does not require an external output capacitor. Its internal design ensures stability with any capacitive load, including >1 μF bypass capacitors commonly used in precision analog circuits. This eliminates the need for additional components and layout area while maintaining regulation integrity under transient conditions.
What are the no-connect pins on LM4040DIM7-5.0 and how should they be handled?
LM4040DIM7-5.0 has three no-connect pins: Pin 2, Pin 4, and Pin 5 in the SC70-5 (DCK) package. Per TI datasheet SNOS633K Rev K, these pins are internally unconnected and must remain floating or be tied to ground - never driven or connected to active circuitry. Grounding them improves ESD robustness without affecting regulation.
How does the minimum operating current of LM4040DIM7-5.0 compare to other 5-V shunt references?
LM4040DIM7-5.0 specifies a minimum operating current of 74 μA at 25°C, which is optimized for ultra-low-power applications. This is higher than TL4050C50IDBZR (50 μA) but lower than many discrete Zener solutions (>200 μA). The 74 μA value ensures stable regulation while supporting battery-operated devices with multi-year runtime requirements.
Is LM4040DIM7-5.0 compliant with AEC-Q100 for automotive use?
LM4040DIM7-5.0 is not AEC-Q100 qualified. Only the LM4040-N-Q1 family (e.g., LM4040QAIM3-5.0) carries AEC-Q100 Grade 1 or Grade 3 certification. LM4040DIM7-5.0 is rated for industrial temperature range only and lacks the automotive qualification testing, traceability, and failure rate reporting required for under-hood or safety-critical vehicle systems.
LM4040DIM7-5.0 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- 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:
- SC-70-5
LM4040DIM7-5.0 FAQ
1.How can I place an order for LM4040DIM7-5.0 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM4040DIM7-5.0 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 LM4040DIM7-5.0 reliable?
The price and inventory of LM4040DIM7-5.0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM4040DIM7-5.0 is usually 5 days.
3.What payment methods are accepted for LM4040DIM7-5.0?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM4040DIM7-5.0 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM4040DIM7-5.0?
LM4040DIM7-5.0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM4040DIM7-5.0 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 LM4040DIM7-5.0?
For technical support, including LM4040DIM7-5.0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM4040DIM7-5.0 requirements.
6.How does Aetrix verify that LM4040DIM7-5.0 is sourced from the original manufacturer or authorized distributors?
All LM4040DIM7-5.0 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 LM4040DIM7-5.0 meets industry standards.
7.What is the process for return or replacement of LM4040DIM7-5.0?
All LM4040DIM7-5.0 units undergo pre-shipment inspection (PSI). If there is an issue with LM4040DIM7-5.0, 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 LM4040DIM7-5.0 part is unused and in its original packaging.
Return procedure for LM4040DIM7-5.0:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM4040DIM7-5.0 Tags
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TL431AIDBZR
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TL431BQDBZR
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AZ431LANTR-G1
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