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Product Detailed Parameters
- Description：IC VREF SHUNT ADJ 2% 8SOIC
- Series：-
- Mfr：National Semiconductor
- Package：Bulk
- Output Type：Adjustable
- Voltage - Output (Min/Fixed)：1.24V
- Voltage - Output (Max)：5.3 V
- 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 LM385M-NS is a micropower, two-terminal band-gap voltage reference diode manufactured by National Semiconductor. It operates within a cathode current range of 20 µA to 20 mA and features an operating temperature range of 0°C to +70°C (TA). The component is designed for surface mount installation in an 8-SOIC package with a width of 3.90 mm. As part of the LM385 series, it provides stable voltage regulation suitable for precision applications requiring low power consumption.
Feature Summary
- Micropower two-terminal band-gap voltage regulation
- Surface mount 8-SOIC package design
- Wide operating current range from 20 µA to 20 mA
Applications
- Precision analog circuits requiring stable voltage references
- Battery-powered systems due to micropower characteristics
- Portable instrumentation and measurement devices
Procurement Notes
Verify the manufacturer designation as National Semiconductor for this specific suffix. Confirm the 8-SOIC package dimensions match your PCB footprint requirements. Ensure the operating temperature range of 0°C to +70°C meets your environmental specifications. Check for compatibility with existing supply voltages and current limiting resistors in your circuit design before finalizing procurement.
Selection Notes
Select this component when a stable, low-power voltage reference is needed in a surface-mount format. The 8-SOIC package offers space efficiency compared to through-hole options. Consider the 20 µA minimum operating current when designing bias networks for very low-power applications. Verify that the commercial temperature range suits your deployment environment.
Part Context
This device belongs to the LM185/LM285/LM385 family of adjustable micropower voltage references. These components utilize band-gap technology to provide consistent performance across varying temperatures and load conditions. The LM385 series is widely recognized for its reliability in general-purpose voltage reference applications.
Replacement Considerations
Compatible substitutes include LM385M/NOPB and LM385MX/NOPB from Texas Instruments. These equivalents maintain similar electrical characteristics and pin configurations. Verify package compatibility and thermal performance when transitioning between manufacturers.
