Texas Instruments REF3025AIDBZR

Manufacturer: Texas Instruments
SEMICON NO.: REF3025AIDBZR
Package: SOT-23-3
Stock: In stock
Description: Voltage Reference Fixed Output

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Mfr	Texas Instruments
Device Type	Series (Bandgap) Voltage Reference
Output Type	Fixed
Output Voltage (V_OUT)	2.5 V
Initial Accuracy (Tolerance)	±0.2%
Output Current (Max)	25 mA
Input Voltage	2.55 V to 5.5 V
Dropout Voltage (Typ)	1 mV
Operating Temperature	-40°C to +125°C
Package	SOT-23-3
Mounting Type	Surface Mount
Compliance	RoHS Compliant

REF3025AIDBZR is a high‑precision 2.5 V series‑mode voltage‑reference IC manufactured by Texas Instruments, delivered in tape‑and‑reel SOT‑23‑3 compact surface‑mount package. This low‑power CMOS reference source features tight ±0.2 % initial accuracy, low temperature drift of 50 ppm/°C, ultra‑low 50 µA typical quiescent supply‑current and output‑current capacity up to 25 mA, supporting an input voltage range from 2.7 V to 5.5 V and stable operation over industrial temperature range of ‑40 °C to 125 °C, providing precise, drift‑free reference voltage for ADC, DAC and high‑accuracy analog measurement circuits in portable, industrial and sensor‑based embedded hardwareDigiKey.
Key Features
● Fixed 2.5 V output voltage with ±0.2 % high initial accuracy, minimizing baseline error for analog conversion systems.
● Low 50 ppm/°C maximum temperature coefficient, greatly reducing voltage deviation under wide temperature fluctuation.
● Ultra‑low typical 50 µA quiescent current, significantly lowering static power consumption for battery‑powered equipment.
● Series topology allows input‑supply voltage from 2.7 V to 5.5 V, compatible with standard 3.3 V and 5 V system power rails.
● 25 mA source‑and‑sink output‑current capability, sufficient for driving multiple low‑load analog peripheral circuits.
● Optional capacitor‑free stable output, removing requirement for external compensation capacitor in most simple‑layout scenarios.
FAQ
Q: What benefits does series‑type voltage‑reference topology provide?
A: It consumes very low quiescent current and works with a wide input‑voltage range for low‑power battery‑operated designs.
Q: Is an output capacitor mandatory for operation?
A: It can operate without an output capacitor; adding a 0.1 µF ceramic capacitor improves transient stability for heavy‑load conditions.
Alternative analog reference chips
● REF3025AIDBZT: Identical 2.5 V precision voltage reference supplied on a small‑size tape reel, suitable for low‑volume prototype assembly projects.
● REF5025AID: High‑accuracy 2.5 V series voltage‑reference IC with far‑lower temperature drift, recommended for high‑resolution industrial measurement systems.
● LM4040‑2.5: Shunt‑type 2.5 V precision reference diode, a cross‑brand cost‑effective substitute for circuits designed with shunt‑topology reference architecture.