LM4040A10IDCKRG4 Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
LM4040A10IDCKRG4 is a precision 10 V shunt voltage reference from Texas Instruments with ±0.1% initial accuracy and two-terminal operation, available in a compact 5-pin SC-70 package.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- LM4040A10IDCKRG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM4040A10IDCKRG4?
- Precision 10 V shunt reference with ±0.1% initial accuracy class A for high-resolution ADC and DAC circuits
- Two-terminal shunt configuration simplifies circuit design with a single resistor setting the bias current
- Low output voltage tolerance of ±10 mV over the 9.99 V to 10.01 V range ensures consistent calibration references
- Tiny SC-70-5 package (2 mm × 2.1 mm) minimises board area in handheld and portable measurement instruments
What is LM4040A10IDCKRG4 used for?
The LM4040A10IDCKRG4 serves as a precision voltage reference in high-resolution data acquisition systems, 16-bit or 24-bit ADC front-ends, and precision DAC calibration circuits that require a stable 10 V anchor point. Its shunt topology makes it straightforward to integrate alongside operational amplifiers in precision instrumentation and industrial measurement equipment. The compact SC-70-5 package is also useful in portable calibrators and handheld multi-meters where board space is at a premium.
What are the specifications of LM4040A10IDCKRG4?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Analog IC - Other Type | TWO TERMINAL VOLTAGE REFERENCE |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Voltage-Max | 10.01V |
| Output Voltage-Min | 9.99V |
| Output Voltage-Nom | 10V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP5/6,.08 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temp Coef of Voltage-Max | 100ppm/°C |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trim/Adjustable Output | NO |
| Voltage Tolerance-Max | 0.1% |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the LM4040A10IDCKRG4 datasheet?
LM4040A10IDCKRG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM4040A10IDCKRG4?
Compatible alternatives and drop-in replacements for LM4040A10IDCKRG4:
Frequently Asked Questions
What accuracy class does LM4040A10IDCKRG4 offer and how does that affect 16-bit ADC calibration?
LM4040A10IDCKRG4 is the A-grade version with ±0.1% initial accuracy, equivalent to a ±10 mV tolerance on the 10 V output. For a 16-bit ADC with a 10 V full-scale range, this accuracy class ensures the reference error contributes less than 6 LSBs, which is acceptable for many industrial measurement applications.
How is LM4040A10IDCKRG4 biased in a shunt reference circuit and what resistor value is typically needed?
As a two-terminal shunt device, LM4040A10IDCKRG4 is biased by connecting a series resistor between the supply and the reference anode. With a 12 V supply and a recommended 1 mA bias current, the resistor is approximately 2 kΩ. The shunt circuit keeps the output at a stable 10 V as long as the bias current remains within the specified operating range.
In which precision measurement applications is a 10 V shunt reference preferred over a 2.5 V or 5 V reference?
A 10 V reference is preferred when the ADC or DAC uses a 10 V full-scale span, common in industrial 4–20 mA loop calibrators, bench multimeters, and programmable power supply feedback networks. Using a reference equal to the full-scale voltage eliminates the gain stage needed to scale lower voltage references, reducing noise and component count.
What package dimensions does LM4040A10IDCKRG4 use and how does it compare to SOT-23-5 for board layout?
LM4040A10IDCKRG4 uses the SC-70-5 package with a 2 mm × 2.1 mm body and 0.65 mm pin pitch, which is smaller than a standard SOT-23-5 package. This size advantage is significant in portable instruments and handheld calibrators where saving even a few square millimetres of PCB area matters.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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