2.5 V reference for ADC/DAC bias and low-noise analog rails
The MCP1525-I/TO is a 2.5 V series voltage reference from Microchip Technology, designed to supply a stable bias for A/D and D/A converters, sensor excitation, and precision comparator thresholds. This low quiescent draw makes it suitable for battery-powered instruments where every microamp matters.
Noise floor and output drive — what the specs mean for signal-chain design
Rated for 2 mA output current, the MCP1525-I/TO can directly bias a single ADC reference input or a small sensor bridge. For designs needing more than 2 mA, the reference should be buffered with an op-amp to avoid pulling the output out of regulation.
Through-hole TO-92 — board-fit for prototyping and harsh environments
The MCP1525-I/TO comes in a TO-92-3 through-hole package, specified as a Bag for bulk handling. The through-hole form factor is preferred for breadboard prototyping, low-volume production, and applications where the board sees thermal cycling or vibration that could crack a small surface-mount package. The three-lead TO-92 pinout (VIN, GND, VOUT) is standard across Microchip's MCP15xx series voltage references, simplifying layout when swapping between output voltages.