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Product Detailed Parameters
- Description：IC VREF SHUNT 1% 8SOIC
- Series：-
- Mfr：Texas Instruments
- Package：Tube
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：1.235V
- 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 LM285DG4-1.2 is a precision shunt voltage reference manufactured by Texas Instruments, featuring a fixed output of 1.235 V with an initial accuracy of ±1%. It operates within a temperature range of -40°C to +85°C and utilizes a SOIC-8 surface-mount package. The device supports a maximum shunt current of 20 mA and a minimum operating current of 10 µA, ensuring stable regulation across varying load conditions.
Feature Summary
- Provides a precise 1.235 V reference voltage with tight initial tolerance for high-accuracy applications
- Operates effectively over a wide current range from 10 µA to 20 mA for flexible circuit design
- Features low dynamic impedance and low noise characteristics for signal integrity
Applications
- Analog-to-digital converter (ADC) reference inputs
- Digital-to-analog converter (DAC) voltage standards
- Portable instrumentation requiring low power consumption
Procurement Notes
Verify the specific suffix 'G4' indicates lead-free composition and RoHS compliance per manufacturer specifications. Confirm the SOIC-8 package dimensions and pinout match the target PCB footprint. Ensure the operating temperature range meets the environmental requirements of the final assembly.
Selection Notes
Select this component when a low-voltage, high-precision reference is required in a compact surface-mount format. Compare against TO-92 variants if through-hole mounting is necessary. Verify that the 1.235 V output level aligns with the system's reference requirements rather than higher voltage options like 2.5 V.
Part Context
This part belongs to the LM285 family of two-terminal shunt references, which are based on bandgap principles. The LM285 series is widely used for providing stable voltage references in power management and data acquisition systems. The DG4 variant specifically denotes the surface-mount SOIC-8 packaging option.
Replacement Considerations
- LM285D-1.2/NOPB
- LM285D-1.2R2G
FAQ
What is the minimum operating current for the LM285DG4-1.2?
The minimum operating current is 10 µA, allowing for efficient operation in low-power circuits.
Does the LM285DG4-1.2 support surface-mount installation?
Yes, it is available in an SOIC-8 surface-mount package suitable for automated assembly processes.
