REF3325AIDCKTG4 Texas Instruments Integrated Circuit (SOT23 (3-Pin)) In Stock
The REF3325AIDCKTG4 is a precision 2.5V three-terminal voltage reference from Texas Instruments featuring 30 ppm/°C maximum temperature drift and ultra-low quiescent current of 3.9µA for battery-powered precision systems. It maintains output accuracy from 2.49625V to 2.50375V (±0.15% tolerance) and operates from a compact 3-pin SOT-23 package. Ideal for ADC and DAC reference supply, data acquisition calibration, and precision measurement instrument designs.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- OBSOLETE
- Datasheet
- REF3325AIDCKTG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Precision 2.5V output voltage with ±0.15% initial accuracy (2.49625V to 2.50375V)
- Low 30 ppm/°C maximum temperature coefficient for stable reference over temperature
- Ultra-low quiescent current of 3.9 µA for battery-powered precision applications
- Three-terminal SOT-23 package for compact voltage reference implementation
- Industrial temperature grade -40°C to 125°C for reliable operation in harsh environments
- Lead-free and RoHS compliant (JESD-609 e4) for global environmental compliance
Applications
The REF3325AIDCKTG4 is used as a precision voltage reference for ADC and DAC supply pins in data acquisition systems, signal chain calibration boards, and precision measurement instruments requiring stable 2.5V reference accuracy across temperature. It is commonly found in industrial sensors, medical measurement equipment, and process control transmitters where reference drift must remain within 30 ppm/°C to maintain system accuracy over the operating temperature range. Portable battery-powered instruments particularly benefit from its ultra-low 3.9µA quiescent current, extending battery life without compromising reference precision.
Specifications
| YTEOL | 0 |
| Analog IC - Other Type | THREE TERMINAL VOLTAGE REFERENCE |
| JESD-30 Code | R-PDSO-G3 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Voltage-Max | 2.50375V |
| Output Voltage-Min | 2.49625V |
| Output Voltage-Nom | 2.5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOT-323 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2.7V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Temp Coef of Voltage-Max | 30ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Trim/Adjustable Output | NO |
| Voltage Tolerance-Max | 0.15% |
| Package | SOT23 (3-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for REF3325AIDCKTG4:
Frequently Asked Questions
What is the output voltage and accuracy of the REF3325AIDCKTG4?
The REF3325AIDCKTG4 provides a nominal 2.5V output voltage with initial accuracy of ±0.15%, corresponding to an output voltage range of 2.49625V to 2.50375V at room temperature. This level of precision is suitable for 12-bit and 14-bit ADC and DAC reference applications where reference accuracy is a primary contributor to overall system measurement error.
What is the temperature coefficient of the REF3325AIDCKTG4?
The REF3325AIDCKTG4 has a maximum temperature drift of 30 ppm/°C, meaning the output voltage changes by at most 30 parts per million for every degree Celsius of temperature change. Over a 100°C operating range, this corresponds to a maximum drift of 3000 ppm (7.5mV), which is acceptable for 10-bit to 12-bit measurement systems requiring stable reference performance.
How much quiescent current does the REF3325AIDCKTG4 consume?
The REF3325AIDCKTG4 consumes only 3.9µA of quiescent current in normal operation, making it extremely power-efficient for battery-powered precision instruments. This low current enables continuous voltage reference operation in handheld meters, remote sensor nodes, and portable data loggers without significantly impacting battery runtime.
What package does the REF3325AIDCKTG4 use?
The REF3325AIDCKTG4 is housed in a 3-pin SOT-23 surface-mount package (JESD-30 code R-PDSO-G3), one of the smallest standard IC packages available. The SOT-23-3 package is widely supported by PCB assembly equipment and is ideal for compact precision reference implementations where board space is limited in portable or high-density electronic designs.
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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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