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Product Detailed Parameters
- Description：IC VREF SHUNT 1.5% 8SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：2.5V
- Voltage - Output (Max)：-
- Current - Output：20 mA
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOIC
- Grade：-
- Qualification：-
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Overview
The LM285DR-2-5 is a fixed shunt voltage reference from Texas Instruments, delivering a nominal output of 2.5V in an SOIC-8 package. It features an initial accuracy of ±1.5% and a temperature coefficient of ±20ppm/°C. The device operates within a junction temperature range of -40°C to +85°C and supports a maximum shunt current of 20mA with a minimum operating current of 20µA.
Feature Summary
- Provides a stable 2.5V reference via shunt topology
- Maintains high precision with ±1.5% initial accuracy
- Ensures thermal stability with low temperature drift
- Operates efficiently at micro-power levels
Applications
- Analog-to-digital converter (ADC) reference inputs
- Digital-to-analog converter (DAC) voltage standards
- Portable battery-powered instrumentation circuits
- Linear regulator feedback networks
Procurement Notes
Verify the specific suffix DR-2-5 against the manufacturer datasheet to confirm the SOIC-8 package and 2.5V fixed output configuration. Ensure compatibility with existing PCB footprints for surface-mount assembly. Confirm RoHS compliance status if required by project specifications before finalizing procurement orders.
Selection Notes
Select this component when a precise, low-cost shunt reference is needed for space-constrained designs. The SOIC-8 package facilitates automated surface-mount placement. Consider the ±20ppm/°C temperature coefficient for applications requiring moderate thermal stability over the industrial temperature range without active compensation.
Part Context
This part belongs to the LM285 family of micro-power shunt voltage references. It serves as a cost-effective alternative to more complex regulation schemes, providing a reliable baseline voltage for analog signal processing chains and measurement systems where absolute precision is secondary to stability and low power consumption.
Replacement Considerations
LM285DR-2-5/NOPB offers identical electrical characteristics with lead-free manufacturing. LM385DR-2-5 provides similar performance with potentially different temperature grade options.
