Overview
The LM285Z-2.5/NOPB is a micropower voltage reference diode produced by Texas Instruments. This two-terminal bandgap voltage regulator is designed for applications requiring a stable and precise voltage reference. The device operates over a wide current range, making it versatile for various electronic circuits. It is particularly useful in micropower circuitry due to its low power consumption and excellent regulation characteristics.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Reverse Breakdown Voltage | V(BR)R | 2.480 - 2.520 | V |
| Minimum Operating Current | IRmin | 10 | μA |
| Operating Current Range | IR | 20 μA to 20 mA | |
| Reverse Dynamic Impedance | Z | 0.6 | Ω |
| Average Temperature Coefficient | ΔV(BR)/ΔT | 80 | ppm/°C |
| Wideband Noise (RMS) | n | 120 | μV |
| Long Term Stability | S | 20 | ppm/kHR |
| Operating Ambient Temperature Range | TA | -40°C to +85°C | |
| Storage Temperature Range | Tstg | -65°C to +150°C | |
| Package Type | TO-92 |
Key Features
- Low power consumption with an operating current range of 20 μA to 20 mA, making it suitable for micropower circuitry.
- High accuracy with a reverse breakdown voltage tolerance of ±20 mV (±0.8%) max.
- Wide dynamic operating range, allowing use with varying supplies and excellent regulation.
- Low temperature coefficient of 80 ppm/°C, ensuring stable performance over temperature variations.
- Low dynamic impedance of 0.6 Ω, enhancing stability under capacitive loading.
- Available in various packages including TO-92, SOIC, and SOT-23, offering flexibility in design.
- Limited built-in ESD protection; requires careful handling to prevent electrostatic damage.
Applications
- Portable meters and battery-powered devices due to its low power consumption and long battery life.
- General-purpose analog circuitry requiring a stable voltage reference.
- Voltage regulators and reference circuits in industrial and consumer electronics.
- Automotive and aerospace applications where a wide operating temperature range is necessary.
Q & A
- What is the operating current range of the LM285Z-2.5/NOPB?
The operating current range is from 20 μA to 20 mA.
- What is the reverse breakdown voltage tolerance of the LM285Z-2.5/NOPB?
The reverse breakdown voltage tolerance is ±20 mV (±0.8%) max.
- What is the temperature coefficient of the LM285Z-2.5/NOPB?
The average temperature coefficient is 80 ppm/°C.
- What is the dynamic impedance of the LM285Z-2.5/NOPB?
The dynamic impedance is 0.6 Ω.
- What are the available package types for the LM285Z-2.5/NOPB?
The device is available in TO-92, SOIC, and SOT-23 packages.
- What is the operating ambient temperature range of the LM285Z-2.5/NOPB?
The operating ambient temperature range is -40°C to +85°C.
- Does the LM285Z-2.5/NOPB have built-in ESD protection?
The device has limited built-in ESD protection and requires careful handling to prevent electrostatic damage.
- What is the storage temperature range for the LM285Z-2.5/NOPB?
The storage temperature range is -65°C to +150°C.
- What are some common applications of the LM285Z-2.5/NOPB?
Common applications include portable meters, general-purpose analog circuitry, voltage regulators, and automotive/aerospace electronics.
- How does the LM285Z-2.5/NOPB handle capacitive loading?
The device is exceptionally tolerant of capacitive loading due to its low dynamic impedance.
