LM285D-2-5

LM285D-2.5 is a fixed 2.5 V precision voltage reference (three-terminal) from the LM285/LM385 family. It provides a stable 2.5 V reference for analog circuits, ADCs/DACs, instrumentation, and regulators. The “D” grade denotes a tighter tolerance/low drift version than standard parts. Key features typically include low noise, good line/load regulation, and modest current consumption, making it suitable for battery-powered and space-constrained designs. Common packages include TO-92 and SOT-23; pinout is Vout, Ground, and Vin (check the exact device). For best performance, bypass the output with a capacitor close to the device and operate within the recommended supply range and load current. It’s a drop-in choice when a stable, 2.5 V reference is required.

Common equivalents for a 2.5 V fixed voltage reference (LM285D-2.5) include:
- LM385-2.5 (TI)
- REF5025 (TI)
- MCP1541-2.5 (Microchip)
- ADR4525 (Analog Devices)
- LT6655-2.5 (Linear Technology)
Note: availability and accuracy vary by package and temperature range; check datasheets for exact specs and pinouts.

Here are the typical features of the LM285D-2-5 (2.5 V fixed voltage reference):
- Fixed 2.5 V output reference
- Very low temperature coefficient (low drift)
- Tight initial accuracy
- Low noise for clean reference signals
- Excellent line and load regulation
- Low quiescent current (suitable for battery-powered apps)
- Stable with capacitive loads; minimal external components required
- Wide operating temperature range
- Available in small packages (e.g., TO-92, SOT-23) for ease of use
- Bypass capacitor recommended for best noise performance
Note: Exact numbers (ppm/°C, µV noise, current, temp range) vary by grade/package; consult the datasheet for precise specifications.

Three pins (TO-92 style). It is a fixed 2.5V shunt voltage reference (three-terminal), providing a stable 2.5V reference voltage between the cathode and anode, used by supplying bias current to regulate the voltage.

- Manufacturer: Texas Instruments (TI).
- What kind of company: TI is an American multinational semiconductor company that designs and manufactures analog and mixed-signal integrated circuits, embedded processors, and related tech for diverse industries.

LM285D-2-5 is a fixed 2.5 V precision voltage reference.
Applications:
- Stable reference for ADC/DAC in instrumentation and data acquisition
- Precision op-amps and signal conditioning
- Calibration and test equipment
- Voltage references for regulators and power-supply circuits
- Microcontroller peripherals and embedded systems needing a stable reference
- Sensor interfaces and general instrumentation requiring low drift

LM285D-2.5 is a 3‑pin voltage reference in a TO-92 plastic package; a surface-mount SOT-23 version is also available.