Overview
The LM385D-2.5, produced by Texas Instruments, is a micropower, two-terminal, band-gap voltage reference. These devices operate over a wide current range of 20 μA to 20 mA and are designed to provide a stable 2.5 V reference voltage. The LM385D-2.5 features exceptionally low dynamic impedance and good temperature stability, making it suitable for a variety of applications requiring precise voltage references.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Reference Voltage | 2.5 | V |
| Initial Voltage Tolerance | ±1.5%, ±3% | % |
| Operating Current Range | 20 μA to 20 mA | A |
| Reference Impedance | 1 Ω (at 25°C), 1.5 Ω (over full temperature range) | Ω |
| Operating Ambient Temperature Range | 0 to 70 | °C |
| Maximum Output Current | 20 | mA |
| Package Type | SOIC (8 pins) | |
| Package Size | 4.90 mm × 3.90 mm | mm |
Key Features
- Operating current range from 20 μA to 20 mA
- 1.5% and 3% initial voltage tolerance grades
- Very low power consumption
- Low dynamic impedance (1 Ω at 25°C, 1.5 Ω over full temperature range)
- Good temperature stability
- On-chip trimming for tight voltage tolerance
- Low noise and long-term stability of the band-gap reference
- Tolerant of capacitive loading
- Pb-free and RoHS compliant
Applications
- Portable meter references
- Portable test instruments
- Battery-operated systems
- Current-loop instrumentation
- Panel meters
- Micropower circuitry
- General-purpose analog circuitry
Q & A
- What is the reference voltage of the LM385D-2.5?
The reference voltage of the LM385D-2.5 is 2.5 V.
- What is the operating current range of the LM385D-2.5?
The operating current range is from 20 μA to 20 mA.
- What are the initial voltage tolerance grades available for the LM385D-2.5?
The initial voltage tolerance grades are ±1.5% and ±3%.
- What is the maximum output current of the LM385D-2.5?
The maximum output current is 20 mA.
- What is the operating ambient temperature range for the LM385D-2.5?
The operating ambient temperature range is from 0 to 70°C.
- Is the LM385D-2.5 Pb-free and RoHS compliant?
- What types of applications are the LM385D-2.5 suitable for?
The LM385D-2.5 is suitable for portable meter references, portable test instruments, battery-operated systems, current-loop instrumentation, panel meters, micropower circuitry, and general-purpose analog circuitry.
- What is the package type and size of the LM385D-2.5?
The package type is SOIC (8 pins) and the size is 4.90 mm × 3.90 mm.
- Does the LM385D-2.5 have low dynamic impedance?
- Is the LM385D-2.5 tolerant of capacitive loading?
