LM385DG4-1-2 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments LM385DG4-1-2 is a two-terminal micropower voltage reference with a 1.235 V nominal output and 2% tolerance across a 20 mA output range in an 8-pin SOIC package. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- LM385DG4-1-2 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Two-terminal shunt voltage reference with 1.235 V nominal output (1.21 V to 1.26 V range) requiring no external bypass capacitor
- Micropower quiescent current as low as 20 µA, enabling long battery life in portable and low-power analog circuits
- Wide operating current range up to 20 mA in compact 8-pin SOIC package with lead-free (e4) RoHS-compliant finish
Applications
The LM385DG4-1-2 serves as a stable reference in portable battery-powered instruments, precision ADC/DAC biasing circuits, and handheld test equipment where ultra-low quiescent current and a 1.235 V reference are essential. Its two-terminal shunt topology simplifies PCB layout by eliminating the need for additional bypass capacitors, making it attractive for compact consumer electronics and medical monitoring devices.
Specifications
| YTEOL | 0 |
| Analog IC - Other Type | TWO TERMINAL VOLTAGE REFERENCE |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Voltage-Max | 1.26V |
| Output Voltage-Min | 1.21V |
| Output Voltage-Nom | 1.235V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Surface Mount | YES |
| Technology | BIPOLAR |
| Temp Coef of Voltage-Max | 20ppm/°C |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Trim/Adjustable Output | NO |
| Voltage Tolerance-Max | 2% |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Mexico |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the nominal output voltage of the LM385DG4-1-2 and what is the tolerance band?
The LM385DG4-1-2 has a nominal output voltage of 1.235 V with a 2% tolerance, meaning the output can range from 1.21 V to 1.26 V. This tight band suits precision ADC reference and comparator threshold applications where a stable sub-1.3 V reference is required.
How does the two-terminal shunt topology of the LM385DG4-1-2 simplify low-power circuit design?
Because the LM385DG4-1-2 is a two-terminal shunt reference, it connects like a zener diode with no output pin or enable line. Quiescent current is as low as 20 µA, so a single series resistor sets the operating point, reducing component count and saving PCB space compared to three-terminal references.
In which applications is the LM385DG4-1-2 preferred over higher-voltage references like a 2.5 V or 5 V part?
The LM385DG4-1-2 excels in single-cell lithium or alkaline battery systems where the supply rail is only 1.8 V to 3.3 V and a 2.5 V reference cannot function. Its 1.235 V output is also ideal for 12-bit ADC biasing, sensor signal conditioning, and precision comparators operating from a 1.5 V to 5 V rail.
What package does the LM385DG4-1-2 come in and is it RoHS compliant?
The LM385DG4-1-2 is housed in an 8-pin SOIC (Small Outline IC) package with a plastic/epoxy body measuring approximately 4.9 mm x 3.9 mm. It carries JESD-609 code e4, confirming a lead-free, RoHS-compliant construction suitable for modern eco-friendly product manufacturing.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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