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Product Detailed Parameters
- Description：IC VREF SHUNT 1% 8SOIC
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：1.235V
- Voltage - Output (Max)：-
- Current - Output：20 mA
- Operating Temperature：0°C ~ 70°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 LM385BD-1.2R2G is a micropower shunt voltage reference diode from the LM385 series, manufactured by onsemi. It provides a fixed output voltage of 1.235V with an initial accuracy of ±1%. The device operates within a current range of 10µA to 20mA and features a temperature coefficient of 80ppm/°C. It is housed in an 8-SOIC surface-mount package and supports an operating temperature range of 0°C to +70°C. Noise performance is specified at 60µVrms over the 10Hz to 10kHz frequency band.
Feature Summary
- Micropower two-terminal bandgap voltage regulator design
- Fixed 1.235V output voltage with high precision
- Wide operating current range for flexible biasing
Applications
- Portable battery-powered instrumentation
- Data acquisition systems requiring stable references
- Microprocessor-based circuits needing precise voltage levels
Procurement Notes
Verify the specific suffix 'R2G' confirms the tape-and-reel packaging format and SOIC-8 footprint. Ensure the order matches the required ±1% accuracy grade and industrial temperature range. Confirm RoHS compliance status as per the latest manufacturer documentation before finalizing procurement.
Selection Notes
Select this component when a low-cost, fixed 1.235V reference is needed for shunt regulation applications. It is suitable for designs requiring operation down to 10µA, making it ideal for energy-constrained systems. Compare against other LM385 variants if different accuracy grades or temperature coefficients are required.
Part Context
This part belongs to the LM385 series of micropower voltage reference diodes. These devices utilize bandgap technology to provide stable voltage outputs. The series is widely used in general-purpose analog circuits where a reliable, low-drift voltage source is essential for accurate signal processing and conversion.
Replacement Considerations
Compatible substitutes include LM385D-1.2G and LM385BDMX-1.2/NOPB. Verify pinout compatibility and electrical specifications such as temperature coefficient and noise levels before substitution.
