REF3325AIDBZR

• Fixed 2.5 V output, Series Reference Topology
• 0.15 Percent Initial Output Accuracy
• 30 Ppm/C Temperature Coefficient
• 8.5 uA Operating Supply current, 5 uA Quiescent Current
• 5 mA Maximum Output Current
• 2.7 V to 7.5 V Input Voltage Range
• 3-Pin SOT-23, 2.92 Mm X 1.3 Mm X 1.22 Mm
• -40 C to 125 C Operating range; RoHS compliant, Lead free, No REACH SVHC

The Texas Instruments REF3325AIDBZR is a precision 2.5 V series voltage reference in a 3-pin SOT-23 package measuring 2.92 mm x 1.3 mm x 1.22 mm. It provides a fixed 2.5 V output with 0.15 percent initial accuracy and a 30 ppm/C temperature coefficient, sourcing up to 5 mA while drawing only 8.5 uA of operating supply current and 5 uA quiescent. The REF3325AIDBZR runs from a 2.7 V to 7.5 V input and is specified from -40 C to 125 C, RoHS compliant and lead free. The microamp-level supply current is the defining characteristic: it lets the reference stay powered continuously in a battery device without meaningfully affecting run time.

A micropower 2.5 V reference is used to set the full-scale span of ADCs and DACs, define comparator and threshold trip points, and provide stable bias for sensor bridges and current-sense circuits, most often in battery-powered and energy-harvesting equipment: portable instruments, handheld meters, wearables, smart sensors, and battery-management and metering boards. At 8.5 uA the reference can remain enabled through sleep cycles rather than being power-gated and allowed to settle on each wake, which simplifies low-duty-cycle measurement designs. The -40 C to 125 C rating extends its use into industrial and automotive-adjacent environments. Typical buyers are low-power analog and embedded designers, portable instrumentation and metering OEMs, and IoT sensor module manufacturers.