LM4140ACM-2.0 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments LM4140ACM-2.0 is a precision 2.048 V LDO voltage reference in an 8-pin SOIC package, offering a tightly regulated 2.046–2.050 V output for ADC, DAC, and instrumentation reference applications.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- LM4140ACM-2.0 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Highly accurate 2.048 V nominal output (2.046 V to 2.050 V) for precision ADC and DAC references
- Low dropout LDO architecture requires minimal input-to-output voltage headroom
- Single-output three-terminal configuration simplifies PCB layout with minimal external components
- Compatible with standard 8-pin SOIC footprint for easy drop-in replacement in existing designs
- Stable output voltage over temperature suitable for industrial measurement and calibration equipment
Applications
The LM4140ACM-2.0 is used as a precision voltage reference in data acquisition systems, 12-bit and 16-bit ADC/DAC circuits, and portable test instruments where a stable 2.048 V reference is required. Its tight output accuracy makes it appropriate for sensor signal conditioning and calibration circuits in industrial and medical measurement equipment. The compact 8-pin SOIC package allows integration into space-constrained analog front-end designs without compromising reference stability.
Specifications
| Pbfree Code | No |
| YTEOL | 0 |
| Analog IC - Other Type | THREE TERMINAL VOLTAGE REFERENCE |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e0 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Voltage-Max | 2.05V |
| Output Voltage-Min | 2.046V |
| Output Voltage-Nom | 2.048V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 235 |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2.248V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Temp Coef of Voltage-Max | 3ppm/°C |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | TIN LEAD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 20 |
| Trim/Adjustable Output | NO |
| Voltage Tolerance-Max | 0.1% |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM4140ACM-2.0:
Voltage Reference, 1 Output, 2.048V, PDSO8
Frequently Asked Questions
What output voltage does the LM4140ACM-2.0 provide, and how tight is the accuracy?
The LM4140ACM-2.0 delivers a nominal 2.048 V reference output with a tolerance range of 2.046 V to 2.050 V. This tight ±2 mV band is suitable for driving precision 12-bit or 16-bit ADC voltage reference pins, ensuring minimal conversion error in high-accuracy measurement systems.
Why is a 2.048 V reference particularly useful in ADC-based data acquisition designs?
A 2.048 V reference is convenient because it aligns with binary power-of-two scaling: a 12-bit ADC using this reference yields an LSB size of exactly 0.5 mV (2.048 V ÷ 4096 steps). This simplifies firmware calculations and reduces rounding errors in data acquisition, industrial sensor readout, and weigh-scale applications.
Can the LM4140ACM-2.0 be used in portable battery-operated instruments?
Yes, the LDO architecture of the LM4140ACM-2.0 allows operation with a low input-to-output voltage differential, which suits battery-powered designs where supply headroom is limited. With a single output and minimal external component requirements, the device fits well in compact portable calibrators, handheld meters, and 3.3 V or 5 V system rails.
What package does the LM4140ACM-2.0 use, and how many pins does it have?
The LM4140ACM-2.0 is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package. The 8-pin form factor provides a standard footprint widely supported by PCB layout tools, enabling straightforward integration into analog front-end boards and instrument designs where reliable voltage reference performance is critical.
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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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