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Product Detailed Parameters
- Description：IC VREF SHUNT 1% 8SOIC
- Series：-
- Mfr：National Semiconductor
- Package：Bulk
- 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 LM385BXM-1.2/NOPB is a micropower shunt voltage reference manufactured by Texas Instruments, originally part of the National Semiconductor portfolio. It operates in the shunt mode and provides a nominal output voltage of 1.235 V with an initial accuracy of ±2%. The device features a maximum shunt current of 20 mA and a temperature coefficient of 150 ppm/°C. It is housed in an SOIC-8 surface-mount package and supports an operating temperature range from 0°C to +70°C.
Feature Summary
- Provides a stable 1.235 V reference voltage suitable for precision applications
- Operates in shunt mode with low power consumption characteristics
- Designed for surface-mount integration via SOIC-8 packaging
Applications
- Industrial isolation amplifier circuits
- Micropower voltage regulation systems
- General-purpose analog reference sources
Procurement Notes
Verify that the component is sourced as an original Texas Instruments product, noting its historical lineage from National Semiconductor. Confirm the specific suffix indicates the fixed 1.2V variant rather than the adjustable version. Ensure the datasheet matches the SOIC-8 package and commercial temperature range specifications before finalizing procurement.
Selection Notes
Select this component when a fixed 1.235 V reference is required in a compact surface-mount form factor. It is appropriate for designs prioritizing low power consumption over high precision or wide temperature ranges. Consider the 150 ppm/°C temperature coefficient for thermal stability requirements within the commercial operating range.
Part Context
This component belongs to the LM385 series of micropower voltage reference diodes. While originally developed by National Semiconductor, the product line is now managed and distributed by Texas Instruments following their acquisition. The 'NOPB' suffix denotes a lead-free and RoHS-compliant manufacturing process.
Replacement Considerations
The LM385MX/NOPB serves as a direct functional substitute within the same family, offering similar electrical characteristics and pinout compatibility for design upgrades or supply chain adjustments.
