LM4120AIM5-1.8/NOPB Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
Texas Instruments LM4120AIM5-1.8/NOPB is a precision 1.8 V series voltage reference with 0.2% initial accuracy and 50 ppm/°C drift in a 5-pin SOT-23 package. Accepts 2 V to 12 V input with shutdown enable for power management. Lead-free NOPB version available from distributors with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- LM4120AIM5-1.8/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.1300(MOQ 1)
- 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 LM4120AIM5-1.8/NOPB?
- 1.8 V precision output with 0.2% initial accuracy (±3.6 mV) and 50 ppm/°C drift for stable ADC references
- Shutdown enable pin reduces current to near zero in power-managed systems, extending battery life
- Wide input voltage range of 2 V to 12 V accepts unregulated supplies and battery stacks directly
- SOT-23-5 package occupies minimal board space while maintaining 1.8 V regulation with tight tolerances
What is LM4120AIM5-1.8/NOPB used for?
LM4120AIM5-1.8/NOPB serves as a precision voltage reference for 12-bit and 16-bit ADC front-ends, DAC references, and comparator threshold circuits in portable instrumentation and IoT devices. Its shutdown pin enables duty-cycling the reference in sleep modes, making it efficient in battery-operated data loggers and handheld measurement tools. The 1.8 V output matches the reference voltage required by low-power microcontrollers and sensor interfaces operating on 1.8 V rails.
What are the specifications of LM4120AIM5-1.8/NOPB?
| YTEOL | 0 |
| Analog IC - Other Type | THREE TERMINAL VOLTAGE REFERENCE |
| Input Voltage-Max | 12V |
| Input Voltage-Min | 2V |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Voltage-Max | 1.804V |
| Output Voltage-Min | 1.796V |
| Output Voltage-Nom | 1.8V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 0.275mA |
| Supply Voltage-Max (Vsup) | 12V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temp Coef of Voltage-Max | 50ppm/°C |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trim/Adjustable Output | NO |
| Voltage Tolerance-Max | 0.2% |
| 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 LM4120AIM5-1.8/NOPB datasheet?
LM4120AIM5-1.8/NOPB Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM4120AIM5-1.8/NOPB?
Compatible alternatives and drop-in replacements for LM4120AIM5-1.8/NOPB:
Voltage Reference, 1 Output, 1.8V, BIPolar, PDSO5
Frequently Asked Questions
What is the output voltage accuracy and drift specification of LM4120AIM5-1.8/NOPB?
LM4120AIM5-1.8/NOPB delivers 1.8 V output with 0.2% initial accuracy corresponding to ±3.6 mV tolerance, and a temperature coefficient of 50 ppm/°C maximum. Over a -40°C to 85°C industrial temperature range, this drift adds no more than ±6.25 mV additional error, preserving ADC reference integrity in precision measurement systems.
How does the shutdown enable feature of LM4120AIM5-1.8/NOPB reduce power consumption in battery-powered designs?
LM4120AIM5-1.8/NOPB includes a dedicated shutdown pin that reduces current consumption to under 1 µA when asserted low, compared to its normal operating current. This feature allows a microcontroller to duty-cycle the voltage reference OFF between measurements, extending battery runtime by 10x or more in intermittent-sampling data loggers and wireless sensor nodes.
What input voltage range does LM4120AIM5-1.8/NOPB accept, and can it be powered from a 3.6 V lithium cell?
LM4120AIM5-1.8/NOPB accepts input voltages from 2 V to 12 V, comfortably accommodating a 3.6 V lithium primary cell that varies from 3.6 V fresh to 2.5 V at end-of-life. The device maintains 1.8 V output regulation as long as VIN exceeds 2 V, delivering a stable ADC reference throughout the battery's usable discharge range.
Is LM4120AIM5-1.8/NOPB suitable as a precision reference for 16-bit ADC designs requiring low drift?
LM4120AIM5-1.8/NOPB is suitable for 12-bit ADC applications with its 0.2% accuracy; for 16-bit designs requiring better than 0.005% reference accuracy, a tighter-specified reference such as LM4130 or REF5020 may be preferred. However, the 50 ppm/°C drift over 25°C variation produces only 2.25 mV error, meeting the LSB budget of many 12-bit and select 14-bit converters.
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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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| 1+ | $1.7300 | $1.73 |
| 100+ | $1.3000 | $130.00 |
| 1000+ | $1.1300 | $1130.00 |
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