LM4040CIM7-2.5/NOPB Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
Texas Instruments LM4040CIM7-2.5/NOPB is a precision micropower 2.5 V shunt voltage reference in a 5-pin SOT-23 package, with 100 ppm/°C temperature coefficient and 2.488–2.512 V output for accurate analog reference needs.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- LM4040CIM7-2.5/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3610(MOQ 25)
- 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 LM4040CIM7-2.5/NOPB?
- Precision 2.5 V nominal output with only 100 ppm/°C temperature coefficient for stable references
- Two-terminal shunt topology requires no external bypass capacitor for basic operation
- Tight output tolerance of ±12 mV (2.488 V to 2.512 V) ensures accurate ADC and DAC references
- Micropower operation enables use in battery-powered and energy-harvesting measurement devices
- Pb-free SOT-23-5 package with RoHS compliance for modern environmentally-conscious designs
What is LM4040CIM7-2.5/NOPB used for?
The LM4040CIM7-2.5/NOPB serves as a stable 2.5 V voltage reference in precision ADC input stages, DAC output references, and analog comparator threshold circuits where low temperature drift is essential. Its micropower shunt configuration makes it ideal for always-on sensor nodes, 4–20 mA loop-powered transmitters, and handheld test instruments running on coin cell or alkaline batteries. The compact 5-pin SOT-23 package ensures minimal PCB area impact while delivering ±12 mV output accuracy across industrial temperature ranges.
What are the specifications of LM4040CIM7-2.5/NOPB?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | TWO TERMINAL VOLTAGE REFERENCE |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Voltage-Max | 2.512V |
| Output Voltage-Min | 2.488V |
| Output Voltage-Nom | 2.5V |
| 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 |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temp Coef of Voltage-Max | 100ppm/°C |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| 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 | 0.5% |
| 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 |
| Country of Origin | Mainland China, Malaysia |
Where can I find the LM4040CIM7-2.5/NOPB datasheet?
LM4040CIM7-2.5/NOPB Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM4040CIM7-2.5/NOPB?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the temperature coefficient of the LM4040CIM7-2.5/NOPB, and why does it matter for precision circuits?
The LM4040CIM7-2.5/NOPB has a temperature coefficient of 100 ppm/°C. Over a -40°C to +125°C industrial temperature range of 165°C, this means the output voltage shifts by at most 0.41%, keeping the 2.5 V reference accurate enough for 12-bit ADC and DAC applications without complex temperature compensation firmware.
How does the shunt topology of the LM4040CIM7-2.5/NOPB differ from series-type references, and when is it preferred?
A shunt reference acts like a precision Zener diode: it draws current proportional to the excess voltage across it, clamping the output at 2.5 V. Unlike series regulators, shunt references require a series resistor to set operating current but work well in loop-powered 4–20 mA transmitters, fixed supply rails, and low-current analog circuits where the two-terminal simplicity outweighs the constant quiescent current trade-off.
Can the LM4040CIM7-2.5/NOPB be used as a reference for a 12-bit ADC, and what accuracy does it provide?
Yes, the 2.5 V nominal output with a tolerance of ±12 mV (2.488 V to 2.512 V) corresponds to less than 0.5% initial error, suitable for 12-bit ADC references where an LSB represents approximately 0.61 mV. For higher accuracy applications, the tighter 'A' grade variant further reduces initial error, but the standard 'C' grade is sufficient for most industrial measurement tasks.
What are the key advantages of the 5-pin SOT-23 package for the LM4040CIM7-2.5/NOPB in board layout?
The 5-pin SOT-23 package measures approximately 2.9 mm × 1.6 mm and requires minimal clearance, allowing dense placement near ADC reference pins to reduce noise pickup on the reference line. The small footprint and standard SOT-23 land pattern are natively supported by most PCB CAD tools, simplifying board design for portable instruments and miniaturized sensor modules.
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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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|---|---|---|
| 25+ | $0.4180 | $10.45 |
| 100+ | $0.3670 | $36.70 |
| 250+ | $0.3610 | $90.25 |
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