Overview
The LM385Z-2.5/T7 is a micropower two-terminal band-gap voltage reference diode produced by National Semiconductor, now part of Texas Instruments. This component is designed to provide a stable 2.5V voltage reference with low power consumption, making it suitable for a wide range of applications where precision voltage referencing is required.
Key Specifications
| Characteristic | Value | Unit |
|---|---|---|
| Output Voltage | 2.5 | V |
| Initial Tolerance (A Grade) | ±20 mV (±0.8%) | - |
| Operating Current Range | 20 μA to 20 mA | - |
| Temperature Range | 0°C to 70°C | - |
| Reverse Dynamic Impedance | 0.6 Ω (at IR = 100 μA, TA = +25°C) | Ω |
| Average Temperature Coefficient | 80 ppm/°C (20 μA ≤ IR ≤ 20 mA) | ppm/°C |
| Wideband Noise (RMS) | 120 nV/√Hz (10 Hz to 10 kHz, IR = 100 μA) | nV/√Hz |
| Long Term Stability | 20 ppm/kHR (IR = 100 μA, TA = +25°C ± 0.1°C) | ppm/kHR |
| Package Types | TO-92, SOIC, SOT-23 | - |
Key Features
- Low power consumption with an operating current range of 20 μA to 20 mA.
- High accuracy with an initial tolerance of ±20 mV (±0.8%) for the A grade.
- Low temperature coefficient of 80 ppm/°C.
- Low voltage reference of 2.5V.
- Available in various package types including TO-92, SOIC, and SOT-23.
- Low dynamic impedance and wideband noise.
- Long-term stability of 20 ppm/kHR.
Applications
- Precision voltage referencing in analog circuits.
- Regulators and voltage stabilizers.
- Battery-powered devices where low power consumption is critical.
- General-purpose analog circuitry requiring stable voltage references.
- Industrial and automotive applications where temperature stability is important.
Q & A
- What is the output voltage of the LM385Z-2.5/T7?
The output voltage of the LM385Z-2.5/T7 is 2.5V.
- What is the operating current range of the LM385Z-2.5/T7?
The operating current range is from 20 μA to 20 mA.
- What is the temperature range for the LM385Z-2.5/T7?
The temperature range is from 0°C to 70°C.
- What are the available package types for the LM385Z-2.5/T7?
The component is available in TO-92, SOIC, and SOT-23 packages.
- What is the initial tolerance of the LM385Z-2.5/T7?
The initial tolerance is ±20 mV (±0.8%) for the A grade.
- What is the average temperature coefficient of the LM385Z-2.5/T7?
The average temperature coefficient is 80 ppm/°C.
- What are some common applications for the LM385Z-2.5/T7?
Common applications include precision voltage referencing, regulators, battery-powered devices, and general-purpose analog circuitry.
- How does the LM385Z-2.5/T7 handle noise?
The component has a wideband noise of 120 nV/√Hz (10 Hz to 10 kHz, IR = 100 μA).
- What is the long-term stability of the LM385Z-2.5/T7?
The long-term stability is 20 ppm/kHR (IR = 100 μA, TA = +25°C ± 0.1°C).
- Is the LM385Z-2.5/T7 RoHS compliant?
Yes, many versions of the LM385Z-2.5/T7 are RoHS compliant.
