TI REF3325AIDCK

Mfr. Part

REF3325AIDCK

Manufacturer

Luminary Micro/Texas Instruments (TI). Y-IC is a quality distributor for TI. We commit to supplying genuine TI products and providing customers with the best products, technical support, and services.

Detailed Description

REF3325AIDCK is a fixed 2.5 V precision series voltage reference in an ultra‑small SC70-3 (DCK) package from Texas Instruments. It delivers a stable, accurate 2.5 V reference with low supply current and low temperature drift, making it ideal for precision measurements and battery-powered systems. It is designed to be stable with standard ceramic capacitors, features excellent line/load regulation, and supports industrial operating temperatures. As a “series” reference, it sources a regulated 2.5 V output when powered from a supply voltage above the reference level.

Key Features

Fixed 2.5 V precision reference output

A-grade accuracy and tight drift over temperature (industrial grade)

Low quiescent current for long battery life

Low noise reference suitable for precision ADC/DAC front ends

Good line and load regulation for stable performance vs. supply and load changes

Fast start-up and stable operation with ceramic output capacitors

Wide input supply headroom (requires VIN above 2.5 V)

Industrial temperature support

Tiny SC70-3 footprint for space-constrained designs

RoHS-compliant, lead-free packaging

Key Advantages

Precision you can trust: stable, accurate 2.5 V improves measurement repeatability and system calibration

Power efficient: very low operating current minimizes power budget in portable/IoT devices

Space saver: SC70-3 reduces PCB area versus larger SOT-23 or SOIC options

Simple to design-in: standard 3-pin pinout, stable with small ceramic caps, straightforward decoupling

Robust performance: strong regulation and low drift reduce error sources in mixed-signal systems

Packaging

Type: SC70-3 (TI package code DCK), plastic molded, 3-pin

Material/finish: Molded epoxy body; leaded terminals with lead-free finish (RoHS)

Size: Ultra-compact SC70-3 footprint (refer to datasheet mechanical drawing for exact dimensions and land pattern)

Pin configuration (3-pin, standard series reference):

- IN (VIN): supply input

- GND: ground

- OUT (VOUT): 2.5 V reference output

Orientation: Pin 1 index marking on top of package (polarity indicator)

Mounting: Surface-mount (SMD), compatible with automated assembly

Thermal characteristics: High thermal resistance typical of very small packages; maximize copper area under the device for heat spreading. Observe power dissipation limits at elevated ambient temperatures (see datasheet for θJA and derating)

Electrical use notes:

- Output capacitor: stable with small ceramic capacitors on OUT (verify recommended value and ESR range in datasheet)

- Input decoupling: place a local bypass capacitor close to IN–GND

- ESD and MSL: designed for standard ESD robustness; typical MSL suitable for reflow assembly (confirm ratings in datasheet)

Lifecycle

Status: Active, not nearing discontinuation to the best of current industry knowledge

Equivalent/alternative models (verify pinouts and specs before substitution):

- TI same-family alternatives (different output voltages): REF3312 (1.2 V), REF3320 (2.048 V), REF3330 (3.0 V), REF3333 (3.3 V), REF3340 (4.096 V), REF3350 (5.0 V)

- TI similar families (2.5 V options with different performance/power): REF3025, REF3125, REF5025 (higher precision/low noise, larger package and higher current)

- Cross-vendor examples (2.5 V series references): Analog Devices ADR3425 or ADR4525; Microchip MCP1525; Maxim Integrated MAX6070A 2.5 V

- Shunt references (not drop-in, different topology): LM4040AIM3-2.5, TL431/432 derivatives (require biasing resistor)

If you need confirmed second-source or footprint-compatible drop-ins, contact our sales team via the Y-IC website for curated alternatives and the latest lifecycle data.

Key Application Areas

Precision ADC/DAC reference for microcontrollers and data acquisition

Sensor interfaces and instrumentation (pressure, temperature, flow, biosensors)

Portable, battery-powered equipment and IoT nodes

Industrial control and factory automation

Test and measurement, calibration tools

Medical and healthcare devices (non-life-supporting)

Power monitoring, energy meters, smart meters

Communications equipment and network devices requiring stable references

Datasheet

Y-IC provides the most authoritative and up-to-date datasheet for REF3325AIDCK on this product page. For exact electrical limits, thermal data, recommended capacitors, PCB land pattern, and orderable part numbers, download the datasheet now to ensure correct design-in.

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